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Letteratura scientifica selezionata sul tema "Alkaline Earth Metal hydrides"

Autore: Grafiati
Pubblicato: 24 agosto 2024

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Articoli di riviste sul tema "Alkaline Earth Metal hydrides"

1

Yang, Wen-Hua, Wen-Cai Lu, Shan-Dong Li, Xu-Yan Xue, Wei Qin, K. M. Ho e C. Z. Wang. "Superconductivity in alkaline earth metal doped boron hydrides". Physica B: Condensed Matter 611 (giugno 2021): 412795. http://dx.doi.org/10.1016/j.physb.2020.412795.

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2

Shi, Xianghui, Zhizhou Liu e Jianhua Cheng. "Research Progress of Molecular Alkaline-Earth Metal Hydrides". Chinese Journal of Organic Chemistry 39, n. 6 (2019): 1557. http://dx.doi.org/10.6023/cjoc201903043.

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3

Reckeweg, Olaf, Jay C. Molstad, Scott Levy e Francis J. DiSalvo. "Syntheses and Crystal Structures of the New Ternary Barium Halide Hydrides Ba2H3X (X = Cl or Br)". Zeitschrift für Naturforschung B 62, n. 1 (1 gennaio 2007): 23–27. http://dx.doi.org/10.1515/znb-2007-0104.

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Single crystals of the isotypic hydrides Ba2H3X (X = Cl or Br) were obtained by solid-state reactions of Ba, NaCl, NaNH2 and metallic Na, or Ba, NH4Br and Na, respectively, in sealed, silicajacketed stainless-steel ampoules. The crystal structures of the new compounds were determined by means of single crystal X-ray diffraction. Ba2H3Cl and Ba2H3Br crystallize in a stuffed anti CdI2 structure and adopt the space group P3̄m1 (No. 164) with the lattice parameters a = 443.00(6), c = 723.00(14) pm and a = 444.92(4), c = 754.48(14) pm, respectively. The hydride positions are derived by crystallographic reasoning and with the help of EUTAX calculations. The results are compared with known data for binary and ternary alkaline earth metal hydrides.
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4

Kunkel, Nathalie, Holger Kohlmann, Adlane Sayede e Michael Springborg. "Alkaline-Earth Metal Hydrides as Novel Host Lattices for EuIILuminescence". Inorganic Chemistry 50, n. 13 (4 luglio 2011): 5873–75. http://dx.doi.org/10.1021/ic200801x.

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5

Yvon, Klaus, e Bernard Bertheville. "Magnesium based ternary metal hydrides containing alkali and alkaline-earth elements". Journal of Alloys and Compounds 425, n. 1-2 (novembre 2006): 101–8. http://dx.doi.org/10.1016/j.jallcom.2006.01.049.

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6

Zhang, Song, Lu Wang, Yun-Long Tai, Yun-Lei Teng, Juan Zhao, Wei Zhu e Bao-Xia Dong. "Metal carbonates-induced solution-free dehydrogenation of alkaline earth metal hydrides at room temperature". Journal of Solid State Chemistry 289 (settembre 2020): 121485. http://dx.doi.org/10.1016/j.jssc.2020.121485.

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7

Gebreyohannes, Muez Gebregiorgis, Chernet Amente Geffe e Pooran Singh. "Computational study of pressurized tetragonal magnesium hydride (MgH4) as a potential candidate for high-temperature superconducting material". Materials Research Express 9, n. 3 (1 marzo 2022): 036001. http://dx.doi.org/10.1088/2053-1591/ac5e22.

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Abstract The dream of realizing room temperature superconductivity is one of the most challenging problems in condensed matter physics. Currently, materials with dense hydrogen contents at high pressures hold great promise for realizing room temperature superconductivity. In particular, pressurized alkaline earth metal hydrides received particular attention following the recently predicted sodalite-like calcium hydride (CaH6) with predicted Tc about 261 K above a pressure of 150 GPa; and magnesium hydride (MgH6) with predicted Tc about 270 K above 300 GPa. In this paper, we studied magnesium hydride (MgH4) with tetragonal (I4/mmm) type symmetry, and we found that this structure shows the highest T c ≅ 313 K at a pressure of 280 GPa which is higher than that of MgH6. Using density-functional perturbation theory (DFPT), the superconducting transition temperature, electron-phonon coupling, Eliashberg spectral function, and the logarithmic average frequency were computed. Our results reveal that, the computed values are reasonably in agreement with previous estimates.
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IVANOVIĆ, NENAD, NIKOLA NOVAKOVIĆ, DANIELE COLOGNESI, IVANA RADISAVLJEVIĆ e STANKO OSTOJIĆ. "ELECTRONIC PRINCIPLES OF SOME TRENDS IN PROPERTIES OF METALLIC HYDRIDES". International Journal of Modern Physics B 24, n. 06n07 (20 marzo 2010): 703–10. http://dx.doi.org/10.1142/s0217979210064320.

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Due to their extensive present, important and versatile potential applications, metal hydrides (MH) are among the most investigated solid-state systems. Theoretical, numerical and experimental studies have provided a considerable knowledge about their structure and properties, but in spite of that, the basic electronic principles of various interactions present in MH have not yet been completely resolved. Even in the simplest MH, i.e. alkali hydrides (Alk-H), some trends in physical properties, and especially their deviations, are not well understood. Similar doubts exist for the alkaline-earth hydride (AlkE-H) series, and are even more pronounced for complex systems, like transition metal-doped AlkE-H, alanates and borohydrides. This work is an attempt of explaining some trends in the physical properties of Alk-H and AlkE-H, employing the Bader analysis of the charge distribution topology evaluated by first-principle all-electron calculations. These results are related to some variables commonly used in the explanation of experimental and calculated results, and are also accompanied by simple tight-binding estimations. Such an approach provides a valuable insight in the characteristics of M-H and H-H interactions in these hydrides, and their possible changes along with external parameters, like temperature, pressure, defect or impurity introduction. The knowledge of these basic interactions and processes taking place in simple MH are essential for the design and optimisation of complex MH-systems interesting for practical hydrogen storage applications.
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9

Kunkel, Nathalie, Holger Kohlmann, Adlane Sayede e Michael Springborg. "ChemInform Abstract: Alkaline-Earth Metal Hydrides as Novel Host Lattices for EuII Luminescence." ChemInform 42, n. 35 (4 agosto 2011): no. http://dx.doi.org/10.1002/chin.201135009.

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Stavila, Vitalie. "Structural features of metal dodecahydro-closo-dodecaborates". Acta Crystallographica Section A Foundations and Advances 70, a1 (5 agosto 2014): C1026. http://dx.doi.org/10.1107/s2053273314089736.

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Metal dodecahydro-closo-dodecaborates have been recently explored as materials for hydrogen storage and as promising ionic conductors. However, their utility as hydrogen storage media is impeded by their high thermal stability, kinetic limitations, and side reactions. The high thermal and chemical stability of these materials makes them interesting for solid battery membrane applications, however more work is needed to understand the complicated phase transitions which occur in many metal dodecahydro-closo-dodecaborates. Recent literature suggests that dodecahydro-closo-dodecaborate species are formed as stable intermediates during the dehydrogenation of metal borohydrides [1]. This hypothesis is especially intriguing in the context of high thermal stability reported for compounds containing icosahedral dodecahydro-closo-dodecaborate anions in the presence of hydrogen gas [2]. Here, a series of multi-component alkali, alkaline-earth and transition metal [B12H12]2- compounds were isolated and characterized by single-crystal and powder X-ray diffraction techniques. Attempts to rehydrogenate M2B12H12 and MB12H12 (where M= alkali or alkaline-earth metal) in the presence of the metal hydrides we made, and several compounds were found to be susceptible to dehydrogenation/rehydrogenation reactions. In addition, selected M2B12H12 compounds were found to display high-temperature phases with increased values of alkali metal ionic conductivity.
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Tesi sul tema "Alkaline Earth Metal hydrides"

1

Santoru, Antonio [Verfasser]. "Insights into the structure and reaction mechanism of alkali and alkaline-earth metal amide-metal hydride composite systems for hydrogen storage / Antonio Santoru". Hamburg : Helmut-Schmidt-Universität, Bibliothek, 2018. http://d-nb.info/1162510706/34.

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2

Verbraeken, Maarten Christiaan. "Doped alkaline earth (nitride) hydrides". Thesis, St Andrews, 2009. http://hdl.handle.net/10023/714.

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3

Treuil-Dussouet, Félix. "Photoconductivity in rare earth metal-oxy-hydrides". Thesis, Uppsala universitet, Materialteori, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-416695.

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In this project the evolution of resistivity under light exposition in materials like rare earth metal-oxy-hydrides is studied. These materials observe a decrease of the resistance when exposed under the light of a 19,5 W power lamp, and slowly tend to return to their initial resistance. After having developed a resistance measurement setup, the photoconductivity of different samples (Gd, YHO) was measured in function of the oxygen concentration and in different conditions such as the face of illumination.
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Pianalto, Frederick Scott 1961. "Laser spectroscopy of strontium-sulfide and alkaline earth monoborohydrides". Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276739.

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Three gas phase alkaline earth molecules were analyzed using dye laser spectroscopy. The A¹Σ⁺ - X¹Σ⁺ transition of gas phase SrS was studied with high resolution techniques. The 0-0, 0-1, 1-1, 2-1, 3-0, 3-2, 4-1, 5-1, and 5-2 bands were rotationally analyzed and spectroscopic constants were determined. The A¹Σ⁺ state was extensively perturbed. Ground state (X¹Σ⁺) constants derived from the analysis of the nine vibrational levels include: ωₑ = 388.2643 cm⁻¹, Bₑ = 0.1208034(33) cm⁻¹, and rₑ = 2.439687(14) Å. Excited state (A¹Σ⁺) constants determined include: Tₑ = 13932.7068(10) cm⁻¹, ωₑ = 339.1454(20) cm⁻¹, Bₑ = 0.1139895(38) cm⁻¹, and rₑ = 2.511601(17) Å. The spectra of calcium and strontium borohydrides were observed using low resolution laser spectroscopy. The spectra were assigned to the òA₁ - Ẋ²A₁ and Ḃ²E - Ẋ²A₁ transitions of CaBH₄ and SrBH₄. The vibrational frequencies of the metal-ligand stretch determined for CaBH₄ were 457 cm⁻¹ (Ẋ²A₁), 473 cm⁻¹ (Ā²A₁), and 465 cm⁻¹ (Ḃ²E). The corresponding SrBH4 frequencies were 399 cm⁻¹, 420 cm⁻¹, and 421 cm⁻¹.
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Blake, Matthew Paul. "Alkaline earth- and rare earth-transition metal complexes". Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:d14f9c15-ec66-4317-82df-04d6ba1d4899.

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This Thesis describes the synthesis and characterisation of new alkaline earth- and rare earth-transition metal complexes. Experimental and computational studies were performed to investigate the structure and bonding in these complexes. Their reactivity was also studied. Chapter 1 introduces metal-metal bonded complexes and current alkaline earth- and rare earth-transition metal bonded complexes. Chapter 2 describes experimental and computational studies of new alkaline earth- and lanthanide-Fe complexes possessing the [CpFe(CO)2]- anion. Chapter 3 presents experimental studies of the reduction of Fe3(CO)12 with Ca. Chapter 4 describes experimental and computational studies of new alkaline earth- and lanthanide-Co complexes containing the [Co(CO)3(PR3)]- anion. Chapter 5 presents full experimental procedures and characterising data for the new complexes reported. Appendix describes the attempted synthesis of [Ca{CpRu(CO)2}2(THF)x]y and study by DFT of [CaRp2(THF)3]2 CD Appendix contains .cif files for all new crystallographically characterised complexes described.
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6

Huadsai, Wimonsiri. "Activation du dioxyde de carbone par des composés de Lewis hautement acidés". Electronic Thesis or Diss., Université de Toulouse (2023-....), 2024. http://www.theses.fr/2024TLSES053.

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Cette recherche visait à étudier les applications potentielles des complexes d'hydrure de Mg et de Ca soutenus par des ligands ß-diketiminate et amidinate pour la réduction des molécules de CO2. Les capacités catalytiques de ces complexes ont été explorées dans le contexte de l'hydroboration et de l'hydrosilylation du CO2. Dans la première partie de l'étude, nous avons examiné la réactivité des hydrures ß-diketiminato de Mg et de Ca avec le CO2. Il a été observé que le complexe d'hydrure de Mg incorporait rapidement le CO2, conduisant à la formation de divers intermédiaires avec différentes nucléarités. Cela implique l'insertion de la liaison Mg—H dans le CO2, ce qui entraîne la génération de groupements formate. Sous l'effet de la chaleur, des complexes de formiate hexamériques ont été formés par un mécanisme de "retournement de ligand", libérant les entraves stériques autour des centres métalliques. Pour les réactions à l'hydrure de Ca et au CO2, l'analyse RMN in situ a été principalement réalisée. En outre, un nouveau complexe amidinate dihydride de Mg a été synthétisé avec succès et a réagi avec du CO2 pour donner un produit unique de complexe formate Mg dimérique, contrairement à l'échafaudage ß-diketiminate, où plusieurs espèces de formate ont été détectées. La deuxième partie de la recherche s'est concentrée sur l'hydroboration catalytique du CO2 à l'aide de complexes d'hydrures alcalino-terreux. En particulier, le système à base de Ca a démontré une grande efficacité dans la production de la réduction à quatre électrons du CO2 ou du produit BBA. Il s'agit du premier exemple d'utilisation de composés hydrides de Mg et de Ca pour catalyser l'hydroboration du CO2, produisant sélectivement le produit BBA. Le BBA généré in situ a ensuite été utilisé comme réactif de transfert de méthylène dans des réactions de condensation avec des thiols, ce qui a entraîné la formation de nouveaux composés hémithioacétals stables [RS—CH2—OBR2] dans des conditions douces et neutres. L'activation des composés hémithioacétals a été réalisée dans des conditions acides, conduisant à la formation de dithioacétals et d'hémithioaminals. La condensation du deuxième fragment OBR2 avec des amines secondaires, qui agissent comme des nucléophiles plus puissants, a abouti à la génération de sulfures d'aryle et de méthyle [RS—CH2—NR2]. Dans la dernière section, nous avons étudié l'hydrosilylation en tandem du CO2 en utilisant divers hydrosilanes en combinaison avec des complexes d'hydrures à base de [Ae] et l'acide de Lewis B(C6F5)3 comme catalyseurs. Cette recherche a élargi les études précédentes sur l'hydrosilylation du CO2 médiée par le Mg et a introduit le premier exemple d'hydrosilylation du CO2 catalysée par le Ca avec des hydrosilanes. L'efficacité de la réduction du CO2 en CH4 ou en bis(silyl)acétal [H2C(Ph3SiO)2] ou en BSA dépend de la nature des silanes et des encombrements stériques autour de la liaison Si—H du substrat. Le choix du catalyseur [Ae] a également influencé de manière significative la vitesse globale de la réaction. En outre, les analyses d'Eyring et d'Arrhenius ont permis de mieux comprendre les paramètres d'activation de la réduction du CO2 par certains catalyseurs, révélant que cette réaction est principalement régie par une contribution entropique. En résumé, cette recherche a démontré la réactivité des complexes d'hydrure de Mg et de Ca pour la réduction du CO2 et a exploré leurs applications dans les réactions d'hydroboration et d'hydrosilylation. Les recherches futures pourraient explorer les possibilités mécanistiques, les différences cinétiques et la réactivité des complexes d'hydrures métalliques du groupe 2 avec le monoxyde de carbone pour l'homologation du CO
This research aimed to investigate the potential applications of Mg and Ca hydride complexes supported by ß-diketiminate and amidinate ligands for the reduction of CO2 molecules. The catalytic abilities of these complexes were explored in the context of hydroboration and hydrosilylation of CO2. In the first part of the study, we examined the reactivity of ß-diketiminato Mg and Ca hydrides with CO2. It was observed that the Mg hydride complex rapidly incorporated CO2, leading to the formation of various intermediates with different nuclearities. This involved the insertion of Mg—H bond into CO2, resulting in the generation of formate moieties. Under heat, hexameric formate complexes were formed through a "ligand flip" mechanism, releasing steric hindrances around the metal centers. For Ca hydride and CO2 reactions, in situ NMR analysis was mainly conducted. Additionally, a novel Mg amidinate dihydride complex was successfully synthesized and reacted with CO2 to yield a unique single product of dimeric formate Mg complex, in contrast to the ß-diketiminate scaffold, where several formate species were detected. The second part of the research focused on the catalytic hydroboration of CO2 using alkaline-earth hydride complexes. In particular, the Ca-based system demonstrated high efficiency in the production of the four-electron reduction of CO2 or BBA product. This was the first example of using Mg and Ca hydride compounds to catalyze the hydroboration of CO2, selectively producing the BBA product. The in situ generated BBA was further used as a methylene transfer reagent in condensation reactions with thiols, resulting in the formation of novel stable hemithioacetal [RS—CH2—OBR2] compounds under mild and neutral conditions. Activation of the hemithioacetal compounds was achieved under acidic conditions, leading to the formation of dithioacetals and hemithioaminals. The condensation of the second OBR2 fragment with secondary amines, which act as stronger nucleophiles, resulted in the generation of aryl methyl sulfides [RS—CH2—NR2]. In the final section, we investigated the tandem hydrosilylation of CO2 using various hydrosilanes in combination with [Ae]-based hydride complexes and Lewis acid B(C6F5)3 as catalysts. This research expanded on previous studies of Mg-mediated hydrosilylation of CO2 and introduced the first example of Ca-catalyzed CO2 hydrosilylation with hydrosilanes. The effectiveness of reducing CO2 to CH4 or bis(silyl)acetal [H2C(Ph3SiO)2] or BSA depended on the nature of the silanes and the steric hindrances around the substrate Si—H bond. The choice of [Ae] catalyst also significantly influenced the overall reaction rate. Furthermore, Eyring and Arrhenius analyses provided insight into the activation parameters for reducing CO2 by certain catalysts, revealing that this reaction is primarily governed by an entropic contribution. In summary, this research has demonstrated the reactivity of Mg and Ca hydride complexes for CO2 reduction and explored their applications in hydroboration and hydrosilylation reactions. Future investigations may explore mechanistic possibilities, kinetic differences, and the reactivity of group 2 metal hydride complexes with carbon monoxide for CO homologation
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Rees, David Alan. "Synthesis of alkaline earth transition metal sulfides". Thesis, University of Nottingham, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.311775.

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Liang, Tao. "Chiral Phosphoric Acids and Alkaline Earth Metal Phosphates Chemistry". Thesis, University of South Florida, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3632228.

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Asymmetric synthesis and catalysis is one of the leading research areas in chemistry society, for its versatility and efficiency in obtaining chiral molecules that found the vast majority in natural active compounds and synthetic drugs. Developing asymmetric catalytic methodology is at the frontier in both industrial and academic research laboratories. Enantioselective organocatalysis has emerged as a powerful synthetic tool that is complementary to metal-catalyzed transformations. The development of chiral phosphoric acid and metal phosphate as catalysts has been a breakthrough in recent years. Chiral phosphoric acids have been shown to be powerful catalysts in many organic transformations. Moreover, chiral metal phosphates, which formed by simply replacing the proton in phosphoric acid with metals, have introduced new catalytic activations and broaden the scope of phosphoric acids. This thesis details new highly enantioselective chiral phosphoric acid-catalyzed Pinacol rearrangement and robust alkaline phosphates catalytic system, which utilizes novel carbonyl activation.

The Pinacol rearrangement has long been known to be difficult to control in terms of regioselectivity and stereoselectivity. The initial studies found that indolyl-diol compounds can be treated with chiral phosphoric acids to afford the Pinacol rearrangement with high regio- and enantioselectivity. Over 16 chiral phosphoric acids were screened, and it was found an H8-BINOL-phosphoric acid variant with 1-naphthyl groups at 3 and 3' position was the excellent catalyst. This asymmetric transformation is tolerant toward variety of substituents both on the indole ring and migrating groups.

During the study, it was found that different ways to generate the catalyst had critical effect on this catalytic transformation. Only those phosphoric acids washed with HCl after column chromatography afforded the rearrangement products with high enantioselectivity. And those without treating with HCl were found contaminated by alkaline metals. These "contamination" catalysts were also found active with carbonyl activations.

A highly enantioselective catalytic hetero-Diels-Alder reaction of alpha-keto esters has been developed with chiral alkaline metal phosphates. A calcium 1-naphthyl-BINOL phosphate was found to be the optimum catalyst. A large range of alpha-keto esters as well as isatins can be applied in this alkaline phosphates catalytic system with high efficiency and selectivity. The structure of the catalyst is detailed for the first time by X-ray crystal structure analysis. A proposed Transition state model is provided based on the catalyst crystal structure and Raman spectroscopy analysis.

This methodology was further developed with an asymmetric Mukaiyama-Michael addition of beta,gamma-unsaturated alpha-keto ester. The best catalyst was found to be a magnesium chiral phosphate. And the transformation was found capable of tolerating a wide variety of beta,gamma-unsaturated alpha-keto esters.

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Hamdy, Louise. "Developing new hydrogen bonded alkaline earth metal-organic complexes". Thesis, University of Bath, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.675739.

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This investigation addresses the understudied area of the research and development of hydrogen bonded metal-organic complexes featuring the alkaline earth metals magnesium and calcium. This work presents the crystal structures and thermal behaviour of a series of metal-organic and organic crystalline complexes synthesised from metal salts and pyridine carboxylic, dicarboxylic acid and chloranilic acid ligands, characterised primarily by X-ray diffraction. Chapter 1 introduces crystal engineering, intermolecular interactions, and functional crystalline materials, followed by a literature review addressing metal-organic frameworks (MOFs), hydrogen bonded metal-organic complexes, magnesium MOFs and alkaline earth metal complexes synthesised from pyridine carboxylic, dicarboxylic and tricarboxylic acid and chloranilic acid. Chapter 2 outlines the theory of the techniques used to analyse the synthesised materials, focusing on single crystal X-ray diffraction, followed by Chapter 3 which documents the sample preparation and the experimental details. Chapter 4 describes the crystal structures of fourteen coordination complexes synthesised from magnesium and calcium salts and the three isomers of pyridine carboxylic acid. This work was carried out in order to identify structural trends such as the most common coordination geometries of the metal centres, the ways in which the ligands coordinate and any recurring hydrogen bonding motifs. Chapter 5 discusses attempts to synthesise an alkaline earth metal analogue of a metal-containing ‘metalloligand’ of the formula M(C7H4NO4)2(H2O)2, in which the metal (M) is N,O-chelated by pyridine-2-carboxylate-4-carboxylic acid, and the subsequent combination of these materials with the diamines o-tolidine and m-xylylenediamine. This chapter also reports the structure of a magnesium coordination complex resulting from a hydrothermal reaction, and the subsequent transformation of this complex to a new crystal structure which contains the doubly deprotonated magnesium analogue of the originally targeted ‘metalloligand’. Chapter 6 describes the crystal structures of three complexes synthesised from pyridine carboxylic acids and chloranilic acid, and the complex resulting from the combination of one of these organic ‘supramolecular ligands’ with a copper salt. Finally, two new calcium-chloranilate coordination polymers are reported, one of which has an interesting anionic 3D structure.
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Gillett-Kunnath, Miriam M. "Heavy alkaline earth metal amides: Synthetic and structural investigations". Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2008. http://wwwlib.umi.com/cr/syr/main.

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Libri sul tema "Alkaline Earth Metal hydrides"

1

Harder, Sjoerd, a cura di. Alkaline-Earth Metal Compounds. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-36270-5.

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Chee-yan, Chan, Khoo Kean H, Lepeshkov I. N e International Union of Pure and Applied Chemistry., a cura di. Alkaline earth metal perchlorates. Oxford: Pergamon, 1989.

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Han, Qiyong. Rare earth, alkaline earth and other elements in metallurgy. Tokyo: Japan Technical Information Service, 1998.

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4

Lange, Norbert. Schwingungsspektroskopische Untersuchungen an Erdalkali- und Übergangsmetallhalogenaten. Rheinfelden: Schäuble, 1992.

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Noble, E. G. Solubilities of chloride salts of alkali and alkaline-earth metals when sparged with hydrogen chloride. Pittsburgh, Pa: U.S. Dept. of the Interior, Bureau of Mines, 1985.

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Anoop, Kelkar, e Bhabha Atomic Research Centre, a cura di. Validation of ION chromatography for the determination of transition metal IONs along with alkali, alkaline earth metal elements for uranium oxide fuel. Mumbai: Bhabha Atomic Research Centre, 2009.

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Anoop, Kelkar, e Bhabha Atomic Research Centre, a cura di. Validation of ION chromatography for the determination of transition metal IONs along with alkali, alkaline earth metal elements for uranium oxide fuel. Mumbai: Bhabha Atomic Research Centre, 2009.

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Gregory, A. E. Studies leading to the development of an optical sensor for alkaline earth metal ions based on porphyrins. Manchester: UMIST, 1993.

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Organization, World Health, a cura di. Calcium and magnesium in drinking-water: Public health significance. Geneva, Switzerland: World Health Organization, 2009.

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Miyamoto, H., M. Salomon e H. L. Clever. Alkaline Earth Metal Halates. Elsevier Science & Technology Books, 2013.

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Capitoli di libri sul tema "Alkaline Earth Metal hydrides"

1

Papaconstantopoulos, Dimitrios A. "Alkaline Earth Hydrides". In Band Structure of Cubic Hydrides, 75–119. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-06878-2_4.

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Gooch, Jan W. "Alkaline-Earth Metal". In Encyclopedic Dictionary of Polymers, 27. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_428.

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Böning, Dieter, Michael I. Lindinger, Damian M. Bailey, Istvan Berczi, Kameljit Kalsi, José González-Alonso, David J. Dyck et al. "Alkaline Earth Metal". In Encyclopedia of Exercise Medicine in Health and Disease, 52. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-540-29807-6_4044.

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Gasik, Mikhail, Viktor Dashevskii e Aitber Bizhanov. "Alkaline Earth Metal Ferroalloys". In Ferroalloys, 219–50. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-57502-1_12.

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Torvisco, Ana, e Karin Ruhlandt-Senge. "Heavy Alkaline-Earth Metal Organometallic and Metal Organic Chemistry: Synthetic Methods and Properties". In Alkaline-Earth Metal Compounds, 1–27. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-36270-5_1.

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Westerhausen, Matthias, Jens Langer, Sven Krieck, Reinald Fischer, Helmar Görls e Mathias Köhler. "Heavier Group 2 Grignard Reagents of the Type Aryl-Ae(L) n -X (Post-Grignard Reagents)". In Alkaline-Earth Metal Compounds, 29–72. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-36270-5_2.

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Jones, Cameron, e Andreas Stasch. "Stable Molecular Magnesium(I) Dimers: A Fundamentally Appealing Yet Synthetically Versatile Compound Class". In Alkaline-Earth Metal Compounds, 73–101. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-36270-5_3.

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Mulvey, Robert E., e Stuart D. Robertson. "Modern Developments in Magnesium Reagent Chemistry for Synthesis". In Alkaline-Earth Metal Compounds, 103–39. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-36270-5_4.

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Carpentier, Jean-François, e Yann Sarazin. "Alkaline-Earth Metal Complexes in Homogeneous Polymerization Catalysis". In Alkaline-Earth Metal Compounds, 141–89. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-36270-5_5.

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Crimmin, Mark R., e Michael S. Hill. "Homogeneous Catalysis with Organometallic Complexes of Group 2". In Alkaline-Earth Metal Compounds, 191–241. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-36270-5_6.

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Atti di convegni sul tema "Alkaline Earth Metal hydrides"

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Takenobu, Taishi. "Synthesis and structure of alkaline earth and rare earth metal doped C[sub 70]". In NANONETWORK MATERIALS: Fullerenes, Nanotubes, and Related Systems. AIP, 2001. http://dx.doi.org/10.1063/1.1420133.

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Patel, Hiral, Priyank Kumar, Nisarg K. Bhatt, Pulastya R. Vyas e Vinod B. Gohel. "Phonon spectrum and dynamical elastic constants of alkaline earth metal barium". In 3RD INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC-2019). AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0001324.

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Sato, Yukinori. "Photoabsorption studies of quasimolecules of alkaline-earth and related metal atoms". In Proceedings of the 12th International conference on spectral line shapes. AIP, 1995. http://dx.doi.org/10.1063/1.47463.

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SLÍVA, Aleš, Jaromír DRÁPALA e Robert BRÁZDA. "Innovation of apparatus for processing metals of loose nature tending to air oxidation, especially alkaline earth metals". In METAL 2019. TANGER Ltd., 2019. http://dx.doi.org/10.37904/metal.2019.929.

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Takahashi, Y., K. Fukuda, T. Kinoshita e T. Yabuzaki. "Liquid helium line broadening and shifts of alkaline earth and alkali metal atoms". In Proceedings of the 12th International conference on spectral line shapes. AIP, 1995. http://dx.doi.org/10.1063/1.47434.

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Phung, Nga, Hans Köbler, Diego Di Girolamo, Thi Tuyen Ngo, Gabrielle Sousa e Silva, Ivan Mora-Seró, Bernd Rech e Antonio Abate. "Impact of Alkaline Earth Metal Doping on the Stability of Perovskite Solar Cells". In nanoGe Fall Meeting 2019. València: Fundació Scito, 2019. http://dx.doi.org/10.29363/nanoge.ngfm.2019.036.

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Phung, Nga, Hans Köbler, Diego Di Girolamo, Thi Tuyen Ngo, Gabrielle Sousa e Silva, Ivan Mora-Seró, Bernd Rech e Antonio Abate. "Impact of Alkaline Earth Metal Doping on the Stability of Perovskite Solar Cells". In nanoGe Fall Meeting 2019. València: Fundació Scito, 2019. http://dx.doi.org/10.29363/nanoge.nfm.2019.036.

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Chung, Chih-Ang, Ci-Siang Lin e Ci-Jyun Ho. "Computational Study of Hydrogen Storage Performance in Metal Hydride Reactors". In ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2010. http://dx.doi.org/10.1115/esda2010-24059.

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Abstract (sommario):
Hydrogen as the most abundant element on Earth is viewed to be a promising energy carrier. For transmission, hydrogen stored as metal hydrides is a potent candidate for its advantages in safe and reliability and being able to offer high energy density compared to the conventional ways such as high pressure gas and liquefaction. Metal hydriding is basically an exothermic process. The heat released will cause an increase in temperature and raise the absorption equilibrium pressure as high as that of the supplied hydrogen gas, which may in turn stop the hydriding process. On the other hand, metal dehydriding is an endothermic process. A temperature decrease can retard desorption and even bring down the dissociation equilibrium pressure as low as the back pressure to stop dehydriding. Therefore, reducing thermal resistance of the storage vessels and enhancing heat transfer of the storage system have become a critical issue for the success of hydrogen storage using metal hydrides. This work models the metal hydriding/dehydriding process in order to assess the vessel design on heat transfer enhancement to improve the performance of hydrogen storage with metal hydrides. First of all, the thermal-fluid behavior of hydrogen storage was modeled including gas flow and energy equations. The vessel is considered to be equipped with an air pipe at the centre line with internal fins. Detailed theoretical models that describe force convection of the heat exchange pipe and natural convection at the lateral wall are constructed. Results from the simulation show that the addition of a concentric heat exchanger pipe with fins can enhance the reaction rates. The work demonstrates how computer aided engineering can be applied to evaluate the performance of hydrogen storage designs, and help reduce experimental efforts in developing the hydrogen storage systems.
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Ta-Ming Cheng, Geng-Te Lin, Hui-Chun Wang, Ming-Chin Cheng, Hsien-Ming Wu e Chi-Young Lee. "Modified solid phase synthesis of alkaline earth metal halide (BaFBr:Eu2+) phosphor". In Environment (ICMREE). IEEE, 2011. http://dx.doi.org/10.1109/icmree.2011.5930520.

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Manteghi, Faranak, e Targol Rahimi Masale Nezhad. "Synthesis of an alkaline-earth metal organic frameworks (MOF) based on benzene-1,2,4,5 tetracarboxylic acid". In The 22nd International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 2018. http://dx.doi.org/10.3390/ecsoc-22-05703.

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Rapporti di organizzazioni sul tema "Alkaline Earth Metal hydrides"

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Chase, M. W. Thermodynamic properties of the alkaline earth metal hydroxides (MOH) I:. Gaithersburg, MD: National Bureau of Standards, 1987. http://dx.doi.org/10.6028/nbs.tn.1243.

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Fondeur, F. F. The Effect of Alkaline Earth Metal on the Cesium Loading of Ionsiv(R) IE-910 and IE-911. Office of Scientific and Technical Information (OSTI), gennaio 2001. http://dx.doi.org/10.2172/773568.

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