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Journal articles on the topic 'H2O'

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Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

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1

Houriez, C., N. Ferré, J. P. Flament, M. Masella, and D. Siri. "Electronic Basis of the Comparable Hydrogen Bond Properties of Small H2CO/(H2O)nand H2NO/(H2O)nSystems (n= 1, 2)." Journal of Physical Chemistry A 111, no. 45 (November 2007): 11673–82. http://dx.doi.org/10.1021/jp075136z.

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2

Ferapontov, Yu A., M. A. Ul’yanova, and T. V. Sazhneva. "Parameters of Li2O2 · H2O crystallization from the LiOH-H2O2-H2O ternary system." Russian Journal of Inorganic Chemistry 53, no. 10 (October 2008): 1635–40. http://dx.doi.org/10.1134/s0036023608100197.

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3

Kelsall, G. H., N. J. Welham, and M. A. Diaz. "Thermodynamics of ClH2O, BrH2O, IH2O, AuClH2O, AuBrH2O and AuIH2O systems at 298 K." Journal of Electroanalytical Chemistry 361, no. 1-2 (December 1993): 13–24. http://dx.doi.org/10.1016/0022-0728(93)87034-s.

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4

Frank, Walter, Thomas Stetzer, and Ludwig Heck. "Darstellung und Kristallstruktur von [(NH3)5Rh(H7O4)Rh(NH3)5](S2O6)2,5 · H2O (1). Ein gemischtes Aquopentamminrhodium(III)-hydroxopentamminrhodium(III)- dithionat mit einer neuartigen μ-H7O4-Struktureinheit / Preparation and Crystal Structure of [(NH3)5Rh(H7O4)Rh(NH3)5](S2O6)2,5 · H2O (1). A Mixed Aquopentaamminerhodium(III)-hydroxopentaamminerhodium(III) Dithionate with a Novel μ-H7O4 Structural Unit." Zeitschrift für Naturforschung B 43, no. 2 (February 1, 1988): 189–95. http://dx.doi.org/10.1515/znb-1988-0210.

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The title compound 1 can be obtained from an aqueous solution of aquopentaammine rhodium(III) dithionate and hydroxopentaammine rhodium(III) dithionate. The crystal structure has been determined from single crystal X-ray diffraction data and refined to R = 0.035 for 4390 unique reflections. Crystal data: monoclinic, space group P21/c, a = 1300.9(5) pm. b = 1472.3(6) pm. c = 1478.8(9) pm, β = 106.20(4)°, Z = 4.In the crystal dinuclear rhodium cations with point group symmetry 1 (C1) are found. A central μ-H3O2-bridge is formed by strong hydrogen bonding between aquo and hydroxo ligands; this bridge is additionally coordinated by two molecules of water. The entire bridging system is therefore H7O4-(H3O2- · 2 H2O). O-O distances characterizing the strength of the three hydrogen bonds within this new kind of structural unit are O(H2O-Rh 1)-O(HO-Rh2): 248 pm. O(H2O-Rh 1)-O(H2Oa): 273 pm, O(HO-Rh2)-O(H2Ob): 287 pm. The hydrogen atoms involved in these bridges have been located. The small difference in the Rh 1-O(H2O) - (205.4(3) pm) and Rh2-O(OH)- (204.3(3) pm) distances indicates that the entire H7O4-- moiety serves as a μ-bridging unit between Rh 1 and Rh 2

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5

Harrison, William T. A. "[Y(HSeO3)(SeO3)(H2O)]·H2O." Acta Crystallographica Section E Structure Reports Online 62, no. 7 (June 21, 2006): i152—i154. http://dx.doi.org/10.1107/s1600536806023051.

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The title compound, aqua(hydrogen trioxoselenato)(trioxoselenato)yttrium(III) monohydrate, which is isostructural with its samarium(III) and neodymium(III) analogues, contains YO8, SeO3 and HSeO3 coordination polyhedra, which fuse together by corner- and edge-sharing, resulting in a layered structure. A network of O—H...O hydrogen bonds helps to consolidate the crystal packing.

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6

Gencheva, G., D. Tsekova, G. Gochev, G. Momekov, G. Tyuliev, V. Skumryev, M. Karaivanova, and P. R. Bontchev. "Synthesis, Structural Characterization, and Cytotoxic Activity of Novel Paramagnetic Platinum Hematoporphyrin IX Complexes: Potent Antitumor Agents." Metal-Based Drugs 2007 (August 7, 2007): 1–13. http://dx.doi.org/10.1155/2007/67376.

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Three novel stable Pt(III) complexes with distorted octahedral structure and (dz2)1 ground state have been obtained in the course of Pt(II)-hematoporphyrin IX ((7,12-bis(1-hydroxyethyl)-3,8,13,17-tetramethyl-21H-23H-porphyn-2,18-dipropionic acid), Hp) interaction in alkaline aqueous medium and aerobic conditions. A redox interaction also takes place together with the complexation process leading to the formation of Pt(III) species and organic radicals. The processes in the reaction system and the structure of the complexes formed cis-[Pt(III)(NH3)2(Hp−3H)(H2O)2]⋅H2O1, [Pt(III)(Hp−3H)(H2O)2]⋅H2O2, and [Pt((O,O)Hp−2H)Cl(H2O)3] 3, were studied by UV-Vis, IR, EPR and XPS spectra, thermal (TGS, DSC), potentiometric and magnetic methods. The newly synthesized complexes show promising cytotoxic activity comparable with that of cis-platin in in vitro tests against a panel of human leukemia cell lines. The observed cytotoxicity of the complex 2 against SKW-3 cells (KE-37 derivative) is due to induction of cell death through apoptosis.

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7

Gao, Aifang, Guoliang Li, Bin Peng, Jared D. Weidman, Yaoming Xie, and Henry F. Schaefer. "The water trimer reaction OH + (H2O)3 → (H2O)2OH + H2O." Physical Chemistry Chemical Physics 22, no. 17 (2020): 9767–74. http://dx.doi.org/10.1039/d0cp01418d.

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All important stationary points on the potential energy surface (PES) for the reaction OH + (H₂O)₃ → (H₂O)₂OH + H₂O have been fully optimized using the “gold standard” CCSD(T) method with the large Dunning correlation-consistent cc-pVQZ basis sets.

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8

Gao, Aifang, Guoliang Li, Bin Peng, Yaoming Xie, and Henry F. Schaefer. "The water dimer reaction OH + (H2O)2 → (H2O)–OH + H2O." Physical Chemistry Chemical Physics 19, no. 28 (2017): 18279–87. http://dx.doi.org/10.1039/c7cp03233a.

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The stationary points, including the entrance complex, transition states, and the exit complex, for the reaction OH + (H₂O)₂ → (H₂O)OH + H₂O have been carefully examined using the “gold standard” CCSD(T) method with the correlation-consistent basis sets up to cc-pVQZ.

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9

Zhang, Nancy Renyou, and Donald D. Shillady. "Ab initio equilibrium constants for H2O–H2O and H2O–CO2." Journal of Chemical Physics 100, no. 7 (April 1994): 5230–36. http://dx.doi.org/10.1063/1.467187.

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10

Jung, Bernd, and Gerd Meyer. "Notizen: Kristallstruktur von [As(C6H5)4]2[Re3Cl11(H20)] · H2O / Crystal Structure of [As(C6H5)4]2[Re3Cl11(H2O)] · H2O." Zeitschrift für Naturforschung B 45, no. 7 (July 1, 1990): 1097–99. http://dx.doi.org/10.1515/znb-1990-0733.

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The crystal structure of(AsPh4)2[Re3Cl„(H2O)]·H2O, previously thought to be (AsPh4)2[Re3Cl11], was redetermined from single-crystal four-circle diffractometer data. The crystal system is triclinic, PĪ, a = 983.1(6), b = 1200.5(6), c = 2566.2(10) pm, α = 92.67(4), β = 99.95(4), γ = 113.38(2)°, Vm = 817.95(1) cm3/mol, R = 0.043,Rw= 0.033.

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11

Mootz, Dietrich, and Angelika Merschenz-Quack. "Zur Kenntnis der hochsten Hydrate der Schwefelsaure: Bildung und Struktur von H2SO4 ·6,5 H2O und H2SO4 · 8 H2O [1] / On the Highest Hydrates of Sulfuric Acid: Formation and Structure of H2SO4-6.5 H2O and H2SO4 · 8 H2O [1]." Zeitschrift für Naturforschung B 42, no. 10 (October 1, 1987): 1231–36. http://dx.doi.org/10.1515/znb-1987-1004.

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Abstract The phase diagram of the system sulfuric acid-water in the range 80-100 mol % H20 was reinvestigated by low-temperature DTA and X-ray powder diffraction. The results are compared with other studies in the literature. The crystal structures of the hydrates H2SO4 · 6.5 H2O. melting incongruently at -54 °C. and H2SO4 · SH2O (metastable) were determined to be those of oxonium salts. (H5O2)(H7O1)SO4 ·1.5 H2O and (H5O2)2SO4 · 4 H2O, respectively.

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12

Rivelino, Roberto, and Sylvio Canuto. "Theoretical Study of Mixed Hydrogen-Bonded Complexes: H2O···HCN···H2O and H2O···HCN···HCN···H2O." Journal of Physical Chemistry A 105, no. 50 (December 2001): 11260–65. http://dx.doi.org/10.1021/jp011966f.

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13

Abramov, P. A., and M. N. Sokolov. "Crystal structure of Na10[{Na(H2O)H2Nb6O19}2(μ-H2O)2]·46H2O." Журнал структурной химии 58, no. 7 (2017): 1450–56. http://dx.doi.org/10.26902/jsc20170719.

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14

Hasebe, Rui, Akinobu Teramoto, Tomoyuki Suwa, Rihito Kuroda, Shigetoshi Sugawa, and Tadahiro Ohmi. "Three-Step Room Temperature Wet Cleaning Process for Silicon Substrate." Solid State Phenomena 145-146 (January 2009): 189–92. http://dx.doi.org/10.4028/www.scientific.net/ssp.145-146.189.

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With a progress of device dimension miniaturization, an ultraclean wafer surface is continuously increasing its importance crucial for high quality processing in Silicon Technologies [1]-[8]. Cleaning of silicon wafer surface has been accomplished by RCA wet cleaning in the past [9], where there exists high temperature processes consisting of H2SO4/H2O2/H2O, NH4OH/H2O2/H2O and HCl/H2O2/H2O treatments. Thus, RCA cleaning requires a large number of processing steps, resulting in the consumption of a huge volume of liquid chemicals and UPW, and simultaneously consuming a large volume of clean air exhaust to suppress chemical vapor from getting into the clean room. Moreover, RCA cleaning is used at high temperature and contain alkali solutions, which increase the roughness of the silicon wafer surface [10].

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15

Janeda, Stephanie, and Dietrich Mootz. "Niedere Hydrate aliphatischer primärer Amine. Neue Untersuchungen zu Bildung und Struktur [1] / Lower Hydrates of Aliphatic Primary Amines. New Studies of Formation and Structure [1]." Zeitschrift für Naturforschung B 53, no. 10 (October 1, 1998): 1197–202. http://dx.doi.org/10.1515/znb-1998-1016.

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AbstractAfter earlier work in this laboratory on lower hydrates of amines, the melting diagram of the system 1,8-diaminooctane/water and six new crystal structures of hemi- and monohydrates of terminal primary n-alkylamines and diamines have been determined. In the hydrates 1 -PrNH2 · 0.5 H2O (space group C 2/m with Z = 4 formula units per unit cell), l-HexNH2 · 0.5 H2O (PI, Z = 2) and H2N(CH2)nNH2 · H2O with n = 4, 6, 8 (P 2x/c, Z = 4), the O and N atoms are hydrogen-bonded into a two-dimensional array analogous to the mutual coordination of cations and anions in the Cdl2 structure type: [ON6/3] ~ [CdI6/3]. In the hydrate H2N(CH2)2NH2 · H2O (C 2/c, Z = 4), the H2O/NH2 partial structure is three-dimensional but can be reduced, by neglecting the longest H bond, to an array which is again just two-dimensional and related now to the red Hgl2 structure type: [ON4/2] ~ [HgI4/2], In all the monohydrates, the arrays as defined are crosslinked by the alkylene cnains of the bifunctional amine molecules

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16

Nawre, Alpa, and Carey Clouse. "H2O." Journal of Architectural Education 74, no. 1 (January 2, 2020): 2–3. http://dx.doi.org/10.1080/10464883.2020.1697139.

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17

Heikes, Brian G., Victoria Treadaway, Ashley S. McNeill, Indira K. C. Silwal, and Daniel W. O'Sullivan. "An ion-neutral model to investigate chemical ionization mass spectrometry analysis of atmospheric molecules – application to a mixed reagent ion system for hydroperoxides and organic acids." Atmospheric Measurement Techniques 11, no. 4 (April 4, 2018): 1851–81. http://dx.doi.org/10.5194/amt-11-1851-2018.

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Abstract. An ion-neutral chemical kinetic model is described and used to simulate the negative ion chemistry occurring within a mixed-reagent ion chemical ionization mass spectrometer (CIMS). The model objective was the establishment of a theoretical basis to understand ambient pressure (variable sample flow and reagent ion carrier gas flow rates), water vapor, ozone and oxides of nitrogen effects on ion cluster sensitivities for hydrogen peroxide (H2O2), methyl peroxide (CH3OOH), formic acid (HFo) and acetic acid (HAc). The model development started with established atmospheric ion chemistry mechanisms, thermodynamic data and reaction rate coefficients. The chemical mechanism was augmented with additional reactions and their reaction rate coefficients specific to the analytes. Some existing reaction rate coefficients were modified to enable the model to match laboratory and field campaign determinations of ion cluster sensitivities as functions of CIMS sample flow rate and ambient humidity. Relative trends in predicted and observed sensitivities are compared as instrument specific factors preclude a direct calculation of instrument sensitivity as a function of sample pressure and humidity. Predicted sensitivity trends and experimental sensitivity trends suggested the model captured the reagent ion and cluster chemistry and reproduced trends in ion cluster sensitivity with sample flow and humidity observed with a CIMS instrument developed for atmospheric peroxide measurements (PCIMSs). The model was further used to investigate the potential for isobaric compounds as interferences in the measurement of the above species. For ambient O3 mixing ratios more than 50 times those of H2O2, O3−(H2O) was predicted to be a significant isobaric interference to the measurement of H2O2 using O2−(H2O2) at m∕z 66. O3 and NO give rise to species and cluster ions, CO3−(H2O) and NO3−(H2O), respectively, which interfere in the measurement of CH3OOH using O2−(CH3OOH) at m∕z 80. The CO3−(H2O) interference assumed one of its O atoms was 18O and present in the cluster in proportion to its natural abundance. The model results indicated monitoring water vapor mixing ratio, m∕z 78 for CO3−(H2O) and m∕z 98 for isotopic CO3−(H2O)2 can be used to determine when CO3−(H2O) interference is significant. Similarly, monitoring water vapor mixing ratio, m∕z 62 for NO3− and m∕z 98 for NO3−(H2O)2 can be used to determine when NO3−(H2O) interference is significant.

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18

Yahyaoui, Samia, Rached Ben Hassen, Bruno Donnadieu, Jean-Claude Daran, and Abdelhamid Ben Salah. "[Yb(H2O)8][Cd3Cl9(H2O)]·6H2O." Acta Crystallographica Section C Crystal Structure Communications 59, no. 11 (October 22, 2003): i109—i111. http://dx.doi.org/10.1107/s0108270103015877.

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The title compound, namely octaaquaytterbium(III) aquanonachlorotricadmate(II) hexahydrate, [Yb(H2O)8][Cd3Cl9(H2O)]·6H2O, was prepared by evaporation at 278 K from an aqueous solution of the ternary system YbCl3–CdCl2–H2O and was characterized by elemental chemical analysis and by X-ray powder and single-crystal diffraction studies. The crystal structure can be viewed as being built from layers of double chains of CdCl6 and CdCl5(H2O) octahedra separated by antiprismatic [Yb(H2O)8]3+ cations. The stabilization of the structure is ensured by O—H...O and O—H...Cl hydrogen bonds. A comparison with the structures of SrCd2Cl6·8H2O and CeCd4Cl11·13H2O is presented.

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19

Yahyaoui, S., H. Naili, R. Ben Hassen, B. Donadieu, J. C. Daran, and A. Ben Salah. "[Yb(H2O)8][Cd3Cl9(H2O)]·6H2O." Acta Crystallographica Section A Foundations of Crystallography 60, a1 (August 26, 2004): s279. http://dx.doi.org/10.1107/s0108767304094462.

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20

Ferapontov, Yu A., D. V. Zhdanov, and M. A. Ul’yanova. "Physicochemical properties of KOH-H2O2-H2O solutions." Russian Journal of Applied Chemistry 80, no. 7 (July 2007): 1045–47. http://dx.doi.org/10.1134/s1070427207070051.

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21

He, H. Y. "Hydrogen generation from H2O/H2O2/MnWO4 system." Research on Chemical Intermediates 37, no. 8 (May 6, 2011): 1057–67. http://dx.doi.org/10.1007/s11164-011-0314-y.

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22

Loeffler, M. J., M. Fama, R. A. Baragiola, and R. W. Carlson. "Photolysis of H2O–H2O2 mixtures: The destruction of H2O2." Icarus 226, no. 1 (September 2013): 945–50. http://dx.doi.org/10.1016/j.icarus.2013.06.030.

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23

Anicich, Vincent G., and Atish D. Sen. "Deuterium exchange in the systems of H2O+/H2O and H3O+/H2O." International Journal of Mass Spectrometry and Ion Processes 172, no. 1-2 (January 1998): 1–14. http://dx.doi.org/10.1016/s0168-1176(97)00257-7.

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24

M�ller, Angela, and Gerd Meyer. "Kristallstruktur von (NMe4)2[Re3Br11(H2O)] [Re3Br9(H2O)3](H2O)2." Zeitschrift f�r anorganische und allgemeine Chemie 619, no. 10 (October 1993): 1655–60. http://dx.doi.org/10.1002/zaac.19936191003.

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25

Arunan, E., T. Emilsson, and H. S. Gutowsky. "Rotational Spectra, Structure, and Dynamics of Arm-(H2O)n Clusters: Ar2-H2O, Ar3-H2O, Ar-(H2O)2, and Ar-(H2O)3." Journal of the American Chemical Society 116, no. 18 (September 1994): 8418–19. http://dx.doi.org/10.1021/ja00097a080.

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26

Gomez, Hector, and Michael N. Groves. "Modeling of H2O, H2O2, and H2O3 formation mechanisms on graphene oxide (GO) surfaces." Carbon 177 (June 2021): 252–59. http://dx.doi.org/10.1016/j.carbon.2021.02.053.

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27

Chen, Man-Sheng, Yi-Fang Deng, Zhi-Min Chen, Chun-Hua Zhang, and Dai-Zhi Kuang. "Structure andMagnetic Properties of a Three-dimensional Metal-organic Framework: [Co(L)(H2O)2]·H2O." Zeitschrift für Naturforschung B 66, no. 4 (April 1, 2011): 355–58. http://dx.doi.org/10.1515/znb-2011-0403.

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A unique 3D fourfold interpenetrated metal-organic framework, [Co(L)(H2O)2]・H2O (1), has been synthesized by the solvothermal reaction of H2L with Co(NO3)2・6H2O (H2L = 5-(isonicotinamido) isophthalic acid). Compound 1 crystallizes in the monoclinic space group P21/c, with the cell parameters: a = 81301(8), b = 107711(11), c = 167697(16) Å , β = 92.656(2) °, V = 14669(3) Å3, R1 = 0.0325 and wR2 = 0.0833. Its framework has (10,3)-b topology, where the cobalt atoms are alternately bridged by the pyridyl and the carboxylate groups of the L2− ligands into a three-dimensional network. Compound 1 displays antiferromagnetic interactions. Above 40 K, χm −1 obeys the Curie- Weiss law with C = 3.28 emu Kmol−1 andΘ = −0.66 K.

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28

Bala, Madhu, and L. K. Mishra. "Complexing Behaviour and Antifungal Activity of N-[(1E)-1-(1H-Benzimidazol-2-yl)ethylidene]morpholine-4-carbothiohydrazide and Related Ligand with Metal Ions." International Journal of Inorganic Chemistry 2014 (April 22, 2014): 1–10. http://dx.doi.org/10.1155/2014/902575.

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The coordination complexes of bivalent metal ions with N-[(1E)-1-(1H-Benzimidazol-2-yl)ethylidene]morpholine-4-carbothiohydrazide (H2bmctz, H2L-1) and N-[(1E)-1-(1H-Benzimidazol-2-yl)(phenyl)methylidene] morpholine-4-carbothiohydrazide (H2bpmctz, H2L-2) were prepared and their neutral, monoanionic, and dianionic forms of ligands of compositions [M(H2L)X2] (M=CoII, NiII, CuII, ZnII, CdII, or PdII, X=Cl− or Br−, and H2L=H2L-1 or H2L-2), [M(HL)2]nH2O where (M=CoII, CuII, MnII, NiII, ZnII or CdII, H2L=H2L-1 or H2L-2, and n = 0 or 2), and [MLB]nB (M=CuII, NiII, ZnII, CdII, or PdII, B=H2O, Py, or Y-pic, n = 0 and n = 1 if B=H2O for Ni(II) and H2L=H2L-1 or H2L-2) have been characterised by magnetic susceptibility measurements, electrical conductance values, and spectral properties. The magnetic moment value of [M(HL2)] (M=MnII, NiII, FeII or CuII) type complexes is consistent with high spin octahedral structure while those of [M(H2L)X2] (M=CoII, NiII, CuII, ZnII, or CdII, X=Cl− or Br−) possess five coordinated trigonal bipyramidal geometry. The adduct complexes [MLB]·nB (M=NiII, or CuII, B=H2O, Py, or Y-pic) are four coordinated planar and those of ZnII and CdII complexes [MLB], (H2L=H2L-1 or H2L-2, B=H2O, Py or Y-pic) are tetrahedral. These ligands have been suggested to coordinate as tridentate (N N S) donor molecule in complexes of type [M(H2L)X2], [M(HL)2], and [MLB]. The antifungal activity of ligands and some of their metal complexes were studied and it was observed that metal complexes show higher activity than free ligand.

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29

Sodupe, Mariona, Antonio Oliva, and Juan Bertran. "Theoretical Study of the Ionization of the H2O-H2O, NH3-H2O, and FH-H2O Hydrogen-Bonded Molecules." Journal of the American Chemical Society 116, no. 18 (September 1994): 8249–58. http://dx.doi.org/10.1021/ja00097a035.

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30

Khan, Arshad. "Theoretical studies of large water clusters: (H2O)28, (H2O)29, (H2O)30, and (H2O)31 hexakaidecahedral structures." Journal of Chemical Physics 106, no. 13 (April 1997): 5537–40. http://dx.doi.org/10.1063/1.473601.

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31

Mikielewicz, Dariusz. "Chłodnicze układy absorpcyjne LiBr-H2O i NH3-H2O The LiBr-H2O and NH3-H2O absorption refrigeration cycle." CHŁODNICTWO 1, no. 3 (March 5, 2016): 26–34. http://dx.doi.org/10.15199/8.2016.3.3.

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32

Chen, Fengying, Feng Liu, Zhenguo Jin, Shumin Wang, Xuemei Fan, and Shuiyang He. "Synthesis, Crystal Structure, and Fluorescence Property of Rare Earth Complex [Er(H2L)(HL)(H2O)]2 [Er(HL)(H2O)4(OH)]· (H2O)3." Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry 40, no. 5 (May 27, 2010): 293–98. http://dx.doi.org/10.1080/15533174.2010.486812.

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33

Ball, David W. "Ab Initio Studies of AlH3-H2O, AlF3-H2O, and AlCl3-H2O Complexes." Journal of Physical Chemistry 99, no. 34 (August 1995): 12786–89. http://dx.doi.org/10.1021/j100034a016.

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34

Lutz, H. D., E. Alici, and W. Buchmeier. "Kristallstrukturen des Sr(BrO3)2 � H2O, Ba(BrO3)2 � H2O, Ba(IO3)2 � H2O, Pb(CIO3)2 � H2O und Pb(BrO3)2 � H2O." Zeitschrift f�r anorganische und allgemeine Chemie 535, no. 4 (April 1986): 31–38. http://dx.doi.org/10.1002/zaac.19865350405.

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35

Li, Dongdong, Dewen Zeng, Xia Yin, and Dandan Gao. "Phase diagrams and thermochemical modeling of salt lake brine systems. III. Li2SO4+H2O, Na2SO4+H2O, K2SO4+H2O, MgSO4+H2O and CaSO4+H2O systems." Calphad 60 (March 2018): 163–76. http://dx.doi.org/10.1016/j.calphad.2018.01.002.

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36

Sun, Chang Feng, Yan Yan Pang, Ying Zhao, and Yu Yang. "Hydrothermal Synthesis and Structure Characterization of Two Hybrid Metal Phosphonates Materials." Advanced Materials Research 1088 (February 2015): 309–13. http://dx.doi.org/10.4028/www.scientific.net/amr.1088.309.

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Under hydrothermal conditions, two copper phosphonates, [Cu2(H2O)2(H2L)(bpy)2(H3L)2]·2H2O (1) and [Cu2(H2O)2(H2L)2(phen)2]·6H2O (2) (H4L = p-xylylenediphosphonic acid, bpy = 2,2'-bipyridine and phen = 1,10-phenanthroline), have been synthesized using diethyl p-xylylenediphosphonate (dixdp), in which p-xylylenediphosphonic acid (H4L) was generated via in situ hydrolysis. Complexe 1 forms a zero-dimensional (0D) bimetallic rings, while complex 2 features a 0D structure containing two kinds of partially deprotonated H3L-and H2L2-ligand.

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Zhao, Yan Li, Zi Jun Song, Yan Li, Hai Sheng San, and Yu Xi Yu. "Low Temperature Wafer Direct Bonding Using Wet Chemical Treatment." Advanced Materials Research 482-484 (February 2012): 2381–84. http://dx.doi.org/10.4028/www.scientific.net/amr.482-484.2381.

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In this paper, the low-temperature (less than or equal to 400 °C) silicon wafer direct bonding technology using wet chemical surface treatment is proposed. For bonded pairs of silicon-oxide-covered wafers, the optimum process condition is established with respect to the experimental results of two different wet chemical processing methods. The bonding quality is evaluated through infrared transmission test and tensile test. Experimental results indicate that the bonding strength of the additional 29% NH3•H2O treated samples is about 7.2 MPa, while it is no more than 3.1 MPa for the only piranha (H2SO4/H2O2) solution and RCA1 (NH3•H2O/H2O2/H2O) solution cleaned samples. Effect of the pulling speed on tensile test is also investigated. The results show that the pulling speed effect should be considered during the tensile test.

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Kuchenev, A. N., and Yu M. Smirnov. "Excitation of H2O+ in e–H2O collisions." Canadian Journal of Physics 74, no. 5-6 (May 1, 1996): 267–78. http://dx.doi.org/10.1139/p96-042.

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Inelastic collisions, between electrons of low and medium energies and H2O molecules, that give rise to the appearance of optical radiation were studied. An experiment was performed with a gas-filled cell using an extended beam of monokinetic electrons to excite the molecules. A spectrum appearing in the visible region was identified as belonging to H2O+. About 430 excitation cross sections attributed to 10 subbands of the [Formula: see text] system were measured. For a number of lines, measurements were made of the optical excitation functions in the range of energies from the excitation threshold to 200 eV.

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39

Grange, S., D. I. Leskovar, L. Pike, and G. Cobb. "Scarification and Moisture Effects on Triploid Watermelon Seed Germination." HortScience 35, no. 4 (July 2000): 553C—553b. http://dx.doi.org/10.21273/hortsci.35.4.553c.

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Triploid watermelon [Citrullus lanatus (Thunb.) Matsum & Nakai] consumption is increasing in the United States However, some of the original problems, poor and inconsistent germination, still exist. Seeds of several triploid and diploid watermelon cultivars were subjected to a variety of treatments to improve germination. Control and scarified seeds, by nicking, were incubated at 25 or 30 °C in either 5 or 10 mL H2O or hydrogen peroxide (H2O2). Triploid seed germination was strongly inhibited in all cultivars when seeds were at 10 mL of H2O or H2O2; both nicking and H2O2 increased germination but not equal to rate of the control in 5 mL H2O or H2O2. Germination of diploid cultivars was unaffected by any treatment. Seed morphological measurments indicated that triploid seed has a smaller embryo with a large and highly variable (cv = 105%) air space surrounding the embryonic axis as compared with the diploid seed. These data suggests that triploid watermelon seed germination is not inhibited by the seed coat thickness alone. Seed moisture plays a significant role in germination, emergence, and stand uniformity.

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Grange, S., D. I. Leskovar, L. Pike, and G. Cobb. "204 Scarification and Moisture Effects on Triploid Watermelon Seed Germination." HortScience 35, no. 3 (June 2000): 426B—426. http://dx.doi.org/10.21273/hortsci.35.3.426b.

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Triploid watermelon [Citrullus lanatus (Thunb.) Matsum & Nakai] consumption is increasing in the U.S. However, some of the original problems, poor and inconsistent germination, still exist. Seeds of several triploid and diploid watermelon cultivars were subjected to a variety of treatments to improve germination. Control and scarified seeds, by nicking, were incubated at 25 or 30 °C in either 5 or 10 mL H2O or hydrogen peroxide (H2O2). Triploid seed germination was strongly inhibited in all cultivars when seeds were at 10 mL of the H2O or H2O2; both nicking and H2O2 increased germination, but not equal to rate of the control in 5 mL H2O or H2O2. Germination of diploid cultivars was unaffected by any treatment. Seed morphological measurments indicated that triploid seed has a smaller embryo with a large and highly variable (CV = 105%) air space surrounding the embryonic axis as compared with the diploid seed. These data suggests that triploid watermelon seed germination is not inhibited by the seedcoat thickness alone. Seed moisture plays a significant role in germination, emergence, and stand uniformity.

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Díaz, Natalia, Dimas Suárez, and Kenneth M. Merz Jr. "Hydration of zinc ions: theoretical study of [Zn(H2O)4](H2O)82+ and [Zn(H2O)6](H2O)62+." Chemical Physics Letters 326, no. 3-4 (August 2000): 288–92. http://dx.doi.org/10.1016/s0009-2614(00)00744-2.

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Farelo, Fátima, Cristina Fernandes, and António Avelino. "Solubilities for Six Ternary Systems: NaCl + NH4Cl + H2O, KCl + NH4Cl + H2O, NaCl + LiCl + H2O, KCl + LiCl + H2O, NaCl + AlCl3+ H2O, and KCl + AlCl3+ H2O atT= (298 to 333) K." Journal of Chemical & Engineering Data 50, no. 4 (July 2005): 1470–77. http://dx.doi.org/10.1021/je050111j.

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43

Bloyet, Clarisse, Jean-Michel Rueff, Olivier Perez, Alain Pautrat, Vincent Caignaert, Bernard Raveau, Guillaume Rogez, and Paul-Alain Jaffrès. "One-Dimensional Fluorene-Based Co(II) Phosphonate Co(H2O)2PO3C–C12H9·H2O: Structure and Magnetism." Inorganics 6, no. 3 (September 5, 2018): 93. http://dx.doi.org/10.3390/inorganics6030093.

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A new Co(II) phosphonate, Co(H2O)2PO3C–C12H9·H2O, has been synthesized under hydrothermal conditions. The monoclinic P21/c structure of this organic–inorganic hybrid consists of isolated perovskite-type chains of corner-shared CoO4(H2O)2 octahedra interconnected via phosphonate groups. The unique one-dimensional structure of this phase is closely related to the single-chain magnet (SCM) phosphonate Co(H2L)(H2O), with L = 4-Me-C6H4-CH2N(CPO3H2)2, that contains isolated chains of CoO5N octahedra. Like the latter, this hybrid exhibits 1D antiferromagnetic interactions and the possibility of an effective pseudo spin contribution due to spin canting at low temperature, but, in contrast, is not an SCM. This different magnetic behavior is explained by the different geometry of the octahedral chains and by the possible existence of weak antiferromagnetic interactions between the chains. This opens the route to the investigation of a large series of compounds by tuning the chemical composition and structure of the phosphonic acid used as organic precursor of hybrid materials.

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44

Šoptrajanov, B., and V. Petruševski. "Infrared spectra of Li2SeO4.H2O, Li2SO4.H2O and Li2(S,Se)O4.H2O." Journal of Molecular Structure 142 (March 1986): 67–70. http://dx.doi.org/10.1016/0022-2860(86)85064-5.

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Shibue, Yasuhiro. "Empirical expressions of quartz solubility in H2O, H2O+CO2, and H2O+NaCl fluids." GEOCHEMICAL JOURNAL 30, no. 6 (1996): 339–54. http://dx.doi.org/10.2343/geochemj.30.339.

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46

Massa, Werner, and Roland E. Schmidt. "Neue Mangan(III)-Fluoridhydrate: Na[MnF4(H2O)2] und Na[MnF4(H2O)2] · H2O / New Fluoride Hydrates of Manganese(III): Na[MnF4(H2O)2] and Na[MnF4(H2O)2] · H2O." Zeitschrift für Naturforschung B 45, no. 5 (May 1, 1990): 593–97. http://dx.doi.org/10.1515/znb-1990-0504.

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Crystalline Na[MnF4(H2O)2] and Na[MnF4(H2O)2] · H2O have been precipitated from aqueous HF solution of MnO(OH) and NaF. The crystal structure determination of the trihydrate (space group C 2/c, Z = 8, α = 1638.1(2), b = 667.6(2), c = 1130.3(1) pm, β = 103.78(1)°; R/wR = 0.038/0.033 for 1696 independent reflections) showed the presence of isolated octahedral trans-[MnF4(H2O)2]- anions with an elongation of the H2O-Mn—OH2 axis due to the Jahn-Teller effect (Mn 1-O 224.6(2), Mn 1—F(mean) 183.7(1); Mn2-0 218.3(2), Mn2— F(mean) 184.7(2) pm). As a consequence, an unusual H-bond geometry is observed with a tetrahedral (instead of trigonal) environment of the coordinated O atoms. Na[MnF4(H2O)2] is monoclinic (space group C 2/m, C 2 or Cm, a = 816.6(4), b = 677.1(1), c = 496.8(2), β = 114.45(3)°), the crystals show twinning and 1-dimensional disorder.

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Y. He, H., and J. Lu. "Highly Efficient Hydrogen Generation from H2O/H2O2/MnO2System." Micro and Nanosystemse 4, no. 1 (February 1, 2012): 37–40. http://dx.doi.org/10.2174/1876402911204010037.

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Ramelot, Theresa A., Ching‐Han Hu, Joseph E. Fowler, Bradley J. DeLeeuw, and Henry F. Schaefer. "Carbonyl–water hydrogen bonding: The H2CO–H2O prototype." Journal of Chemical Physics 100, no. 6 (March 15, 1994): 4347–54. http://dx.doi.org/10.1063/1.466317.

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He, H. Y. "Hydrogen generation from the H2O/H2O2 /MnMoO4 system." JOM 63, no. 1 (January 2011): 60–62. http://dx.doi.org/10.1007/s11837-011-0015-4.

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50

Vollárová, Oľga, Ján Benko, and Michal Sivák. "Kinetic Study of Oxygen Transfer Reactions from Oxo-Monoperoxo Complexes of Vanadium(V) to Thiolatocobalt(III) Complex in Water and Concentrated Solutions of Electrolytes." Collection of Czechoslovak Chemical Communications 61, no. 4 (1996): 574–88. http://dx.doi.org/10.1135/cccc19960574.

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[Co(en)2SCH2CH2NH2]2+ ion is oxidized to [Co(en)2SOCH2CH2NH2]2+ by the oxo-monoperoxovanadium(V) complexes in aqueous media. These reactions are accompanied by oxygen atom transfer from the peroxo ligand to the coordinated sulfur atom. The relative reactivities for each substrate stand in the order: [VO(O2)(ada)]- << [VO(O2)nta]2- ~ H2O2 ~ [VO(O2)(H2O)4]+ < [VO(O2)(quin)2]3- << [VO(O2)(H2O)2(pic)], where ada = N-(carbamoylmethyl)iminodiacetato(2-), nta = nitrilotriacetato(3-), quin = 2,3-pyridinedicarboxylato(2-) and pic = 2-pyridinecarboxylato(1-) ligands. The effect of pH on the second order rate constant for oxidation by monoperoxo-nta complex is in the pH range 4.8-6.5 consistent with equation k(298.2 K) = 0.709 + 1.28 . 105 [H+]. Two new oxo-monoperoxo complexes of vanadium(V), NH4[VO(O2)(ada)] . H2O and (NH4)3[VO(O2)(quin)2] . 3 H2O, were synthesized and characterized. The salt effects on the thiolatocobalt(III) oxidation by vanadium(V) oxo-monoperoxo complexes as well as by H2O2 were studied at 298.2 K in different, up to 5 M solutions of electrolytes. The results can be rationalized in terms of the salt-water interactions.

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