Academic literature on the topic 'Samarium compounds'

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Journal articles on the topic "Samarium compounds"

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Rabe, Gerd W., Mei Zhang-Presse, Florian A. Riederer, James A. Golen, Christopher D. Incarvito, and Arnold L. Rheingold. "Terphenyl Cyclooctatetraenyl Compounds of Samarium." Inorganic Chemistry 42, no. 23 (November 2003): 7587–92. http://dx.doi.org/10.1021/ic0301775.

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Beemelmanns, Christine, and Hans-Ulrich Reissig. "New samarium diiodide-induced cyclizations." Pure and Applied Chemistry 83, no. 3 (January 18, 2011): 507–18. http://dx.doi.org/10.1351/pac-con-10-09-06.

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Samarium diiodide (SmI2) smoothly promotes the cyclizations of suitably substituted carbonyl compounds with styrene subunits leading to benzannulated cyclooctenes. The intramolecular samarium ketyl addition to arene or hetarene moieties enables a new, efficient, and highly stereoselective entry to dearomatized products such as hexahydronaphthalenes, steroid-like tetra- or pentacyclic compounds, or dihydroindole derivatives. The usefulness of the developed SmI2-induced cyclization method was demonstrated by the shortest formal total synthesis of the alkaloid strychnine.
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Bućko, Mirosław M., Joanna Polnar, Jerzy Lis, Janusz Przewoźnik, Karolina Gąska, and Czesław Kapusta. "Magnetic Properties of the Bi7Fe3Ti3O21 Aurivillius Phase Doped with Samarium." Advances in Science and Technology 77 (September 2012): 220–24. http://dx.doi.org/10.4028/www.scientific.net/ast.77.220.

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Bismuth layer-structured compounds in the Bi-Ti-Fe-O system known as Aurivillius phases are single phase multiferroics. It was stated that substitution of some rare earth elements for bismuth ions in such structure can modified its magnetic properties. Powders of Bi7Fe3Ti3O21 and Bi6.3Sm0.7Fe3Ti3O21 were prepared by co-precipitation – calcination method and then were sintered to dense polycrystalline materials. Low field DC susceptibility was measured in the zero field cooled (ZFC) and field cooled (FC) modes at 10÷350 K. For selected temperatures magnetisation curves and hysteresis loops were also measured. The FC and ZFC curves of both samples diverge at temperatures below 250 K indicating a spin glass-like behaviour. The compound with samarium exhibits magnetic hysteresis already at room temperature with the coercive field increasing to 870 Oe at 10 K. The low temperature hysteresis loops of the samarium containing compound are shift with respect to zero field which can be attributed to a magneto-electrical coupling of the samarium sublattice "exchange biased" by the iron one, which orders anti-ferromagnetically at a higher temperature than the samarium sublattice.
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Wang, Yufang, Xuewei Cao, Hyon U. Han, and Guoxiang Lan. "Raman spectra of samarium–fullerene intercalation compounds." Journal of Physics and Chemistry of Solids 63, no. 11 (November 2002): 2053–56. http://dx.doi.org/10.1016/s0022-3697(02)00193-2.

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Basu, Manas K., and Bimal K. Banik. "Samarium-mediated Barbier reaction of carbonyl compounds." Tetrahedron Letters 42, no. 2 (January 2001): 187–89. http://dx.doi.org/10.1016/s0040-4039(00)01961-4.

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Yu, Qiao Hong, Zheng Fa Li, Yong Xiang Li, Ping Zhan Si, Jiang Ying Wang, Hong Liang Ge, and Jing Ji Zhang. "Crystal Structures of New Compounds Na0.5Sm4.5Ti4O15 and Na0.5Eu4.5Ti4O15." Advanced Materials Research 415-417 (December 2011): 468–71. http://dx.doi.org/10.4028/www.scientific.net/amr.415-417.468.

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New compounds of sodium samarium titanate Na0.5Sm4.5Ti4O15and sodium europium titanate Na0.5Eu4.5Ti4O15were synthesized successfully by solid state reaction at 1300 oC and 1200 oC, respectively. The lattice parameters of Na0.5Sm4.5Ti4O15and Na0.5Eu4.5Ti4O15were determined at ordinary temperature by using X-ray powder diffraction method. Their Lattice types were determined, and their patterns were indexed. Polycrystalline X-ray diffraction data of sodium samarium titanate were listed. Differences of their crystal structures were analyzed and discussed.
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Kawamura, N., T. Taniguchi, S. Mizusaki, Y. Nagata, T. C. Ozawa, and H. Samata. "Functional intermetallic compounds in the samarium–iron system." Science and Technology of Advanced Materials 7, no. 1 (January 2006): 46–51. http://dx.doi.org/10.1016/j.stam.2005.11.004.

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Arelli, Sridhar Goud, Anil Kumar, and S. J. Dhoble. "Characterization of luminescence of samarium with phosphate compounds." Materials Today: Proceedings 27 (2020): 649–51. http://dx.doi.org/10.1016/j.matpr.2020.01.470.

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Alekseev, P. A., J. M. Mignot, P. Link, W. Hahn, A. Ochiai, V. Filippov, E. V. Nefeodova, and E. S. Clementyev. "Spin–orbit transitions in mixed-valence samarium compounds." Physica B: Condensed Matter 259-261 (January 1999): 351–52. http://dx.doi.org/10.1016/s0921-4526(98)00834-5.

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Bowden, G. J., and V. H. McCann. "On the Knight shift in samarium intermetallic compounds." Journal of Physics F: Metal Physics 16, no. 11 (November 1986): 1855–72. http://dx.doi.org/10.1088/0305-4608/16/11/021.

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Dissertations / Theses on the topic "Samarium compounds"

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Powell, Jonathon Raymond. "Samarium diiodide mediated radical cyclisations of a B-unsaturated carbonyl compounds." Thesis, University of Southampton, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.494762.

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This thesis is concerned with the synthesis, and samarium diiodide mediated radical cyclisations of α,β-unsaturated carbonyl compounds. Particular interest is directed at the development of a range of cyclic α,β-unsaturated carbonyl systems which have been designed as mechanistic probes to elucidate the nature of the key dimerisation step in the cascade sequence towards polycyclic products. Chapter 1 presents an overview of radical chemistry, including history and key principles. A discussion on samarium diiodide chemistry is also provided, which focuses on key mechanistic aspects and the reactivity of α,β-unsaturated carbonyl compounds with the reagent. A programme of work is also discussed. Chapter 2 describes the design and synthesis of a range of cyclic α,β-unsaturated carbonyl systems, and their uses as mechanistic probes for testing the intermediacy of radical species 253 and 254 and anionic species 255. Chapter 3 depicts the development of a variety of acyclic α,β-unsaturated carbonyl systems, and their reactivity upon exposure to samarium diiodide.
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Essman, Stephanie Christine. "Effects of ¹⁵³samarium-ethylenediaminetetramethylene phosphonate on physeal and articular cartilage in juvenile rabbits /." Free to MU Campus, others may purchase, 2003. http://wwwlib.umi.com/cr/mo/fullcit?p1418016.

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GASIGLIA, HAROLDO T. "Estudos sobre a formacao do complexo do sup(153)Sm com EDTMP (acido etilenodiaminotetrametileno-fosfonico) e dos complexos do sup(153)Sm com outros fosfonatos, em temperatura ambiente." reponame:Repositório Institucional do IPEN, 2000. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10887.

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Tese (Doutoramento)
IPEN/T
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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McKerlie, Fiona. "Reduction of α-aryloxy carbonyl compounds with samarium (II) iodide : a novel traceless linker for the solid phase synthesis of carbonyl compounds." Thesis, University of Glasgow, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.269503.

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Hibino, Takashi, Atsuko Tomita, Mitsuru Sano, Masahiro Nagao, Kohsuke Okamoto, Takanori Kawai, and Masaya Yano. "Single-Chamber SOFCs Using Dimethyl Ether and Ethanol." The Electrochemical Society, 2007. http://hdl.handle.net/2237/18431.

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Wang, Dongqi, and 王東琪. "Density functional theory studies of selected zinc, lithium, and samarium carbenoid species and their cyclopropanation reactions witholefins." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B29486889.

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Sano, Mitsuru, Masahiro Nagao, Takashi Hibino, Atsuko Tomita, and Daisuke Hirabayashi. "Design of a Reduction-Resistant Ce0.8Sm0.2 O 1.9 Electrolyte Through Growth of a Thin BaCe1−xSmxO3−α Layer over Electrolyte Surface." The Electrochemical Society, 2004. http://hdl.handle.net/2237/18454.

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BONTURIM, EVERTON. "Estudo das propriedades do óxido BSCF para aplicação com cátodo em células a combustível de óxido sólido de temperatura intermediária (ITSOFC)." reponame:Repositório Institucional do IPEN, 2012. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10141.

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Dissertação (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
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Kan, Tze-wai Jovi, and 簡紫慧. "Development of new polymer-supported reagents for organic synthesis, solvent effects in samarium promoted allylic alcohol cyclopropanationreactions and time resolved resonance studies of the photodeprotectionof p-hydroxyphenacyl caged phototrigger compounds." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B37925660.

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Kan, Tze-wai Jovi. "Development of new polymer-supported reagents for organic synthesis, solvent effects in samarium promoted allylic alcohol cyclopropanation reactions and time resolved resonance studies of the photodeprotection of p-hydroxyphenacyl caged phototrigger compounds." Click to view the E-thesis via HKUTO, 2006. http://sunzi.lib.hku.hk/hkuto/record/B37925660.

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Books on the topic "Samarium compounds"

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A, Flowers Robert, Skrydstrup Troels, and Royal Society of Chemistry (Great Britain), eds. Organic synthesis using samarium diiodide: A practical guide. Cambridge: Royal Society of Chemistry, 2010.

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Satici, Hikmet. Samarium diiodide in synthesis: Synthesis of the C-ring of anguidine and the conversion of aldehydes and ketones into 1,2-diacetates and 1,2-diols. 1990.

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Book chapters on the topic "Samarium compounds"

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Macintyre, J. E., F. M. Daniel, D. J. Cardin, S. A. Cotton, R. J. Cross, A. G. Davies, R. S. Edmundson, et al. "Sm Samarium." In Dictionary of Organometallic Compounds, 203–4. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4757-4966-3_52.

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MacIntyre, Jane E. "Sm Samarium." In Dictionary of Organometallic Compounds, 264–68. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4899-6848-7_51.

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Macintyre, J. E. "Sm Samarium." In Dictionary of Organometallic Compounds, 338. Boston, MA: Springer US, 1986. http://dx.doi.org/10.1007/978-1-4615-6847-6_48.

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Cotton, S. A. "Sm Samarium." In Organometallic Compounds of the Lanthanides, Actinides and Early Transition Metals, 159–62. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4899-7164-7_26.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of reduced samarium rhenate." In Magnetic Properties of Paramagnetic Compounds, 1245. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-54237-8_690.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of sandwitch samarium(III) carborane cluster." In Magnetic Properties of Paramagnetic Compounds, 1226–27. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-54237-8_680.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of bis(indenyl) complex of samarium(II)." In Magnetic Properties of Paramagnetic Compounds, 1259–60. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-53974-3_653.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of bis(fluoronyl) complex of samarium(II)." In Magnetic Properties of Paramagnetic Compounds, 1261–62. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-53974-3_654.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of samarium(III) perchlorate complex with phenylalanine." In Magnetic Properties of Paramagnetic Compounds, 1212–13. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-54237-8_673.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of samarium(III) nitrato complex with phenylalanine." In Magnetic Properties of Paramagnetic Compounds, 1214–15. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-54237-8_674.

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Conference papers on the topic "Samarium compounds"

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Victoria, Patricia Iglesias, Weimin Yin, Surendra K. Gupta, and Steve Constantinides. "Microstructural Characterization of Sm-Co Magnets." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-37106.

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Samarium cobalt permanent magnets have been widely used for their excellent intrinsic magnetic properties such as very high Curie temperature, high anisotropy fields and most importantly excellent temperature coefficients of induction and coercivity. These materials have continuing industrial interest especially for applications operating at elevated temperatures and in the presence of high demagnetizing fields, such as particle accelerators, high frequency traveling wave tubes (TWTs), servo-motors and automotive and aerospace applications. An area of opportunity for improving performance of SmCo magnets is increasing magnet toughness — resistance to fracture. Like all other sintered rare earth magnetic materials, SmCo magnets are based on intermetallic compounds which are intrinsically brittle and can crack in the course of fabrication, machine work, and installation in the application. Increased toughness would also reduce handling sensitivity of magnetized magnets. For many years, studies on SmCo magnets have been focused on their magnetic properties, but the mechanical characteristics, strengthening and toughening mechanisms have been rarely reported. Understanding the phase and structural transformations induced in the SmCo magnets during the manufacturing process offers insight into potential modifications — chemical or processing-related. In this study, microstructural characterizations of 1:5 and 2:17 Sm-Co magnets were carried out using optical and scanning electron microscopes. In scanning electron microscopy (SEM), backscattered electron imaging and energy dispersive X-ray (EDX) microanalysis were used to investigate different phases and oxides. Finally, crystal structure of the magnets was studied using an X-ray diffractometer (XRD). The study correlates the microstructure characterization with the thermal processing history of different grades of SmCo magnets.
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