- Bi37InBr48: A polar subhalide with Bi95+ polycations, complex bromobismuthate(III) anions [Bi3Br13]4- and [Bi7Br30]9-, and pentabromoindate(III) anions [InBr5]2-
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Black crystals of Bi37InBr48 were synthesized from bismuth, indium and BiBr3 by cooling stoichiometric melts from 570 K to 470 K. X-ray diffraction on powders and single-crystals revealed that the compound crystallizes with space group P 63 (a = 2262.6(4); c = 1305.6(2) pm). The Bi95+ polycations in the polar crystal structure have the shape of heavily distorted tricapped trigonal prisms with approximate Cs symmetry. The high complexity of the structure results from three coexisting types of anionic groups: Three edge-sharing [BiBr6] octahedra constitute the trigonal bromobismuthate(III) anion [Bi3Br13]4-. Four [BiBr6] and three [BiBr5] polyhedra share common vertices to form the [Bi7Br30]9- hemi-sphere, in which the trigonal bipyramid of the pentabromoindat(III) ion [InBr5]2- is embedded.
- Dubenskyy, Vitaly,Ruck, Michael
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- Syntheses, crystal structures, and optical properties of indium arsenic(III) oxide halides: In2(As2O5)Cl 2 and In4(As2O5)(As 3O7)Br3
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Two new indium arsenic(III) oxide halides, In2(As 2O5)Cl2 (1) and In4(As 2O5)(As3O7)Br3 (2), have been prepared by solid-state reaction. Both of
- Jiang, Xiao-Ming,Xu, Zhong-Ning,Zhao, Zhong-Yan,Guo, Sheng-Ping,Guo, Guo-Cong,Huang, Jin-Shun
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- Evaporation of indium tribromide and dissoziation In2Br6,g = 2 InBr3,g
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The sublimation, evaporation and dissoziation of In2Br6 was determined by total pressure measurements in a membran-zero-manometer. The enthalpies and entropies of sublimation, evaporation and dissoziation were derived from the temperature dependence of total pressure and the equilibrium constant. The resulting enthalpy of melting was correlated with the data following from DTA measurements. The domination gaseous species over InBrx mixtures were determined by mass spectrometry. Johann Ambrosius Barth 1996.
- Oppermann,Deichsel,Milke,Binnewies
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- Chemical vapor transport of ternary indium molybdates
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An isothermal section of the phase diagram of the system In/Mo/O at 1273 K was established by isothermal equilibration and XRD analyses of quenched samples. The chemical vapor transport of In2Mo3O 12 was investigated in dependence on mean transport temperature (823 K to 1123 K) and amount of transport agent (Cl2 or Br2). The observed transport behaviour is compared with results of thermodynamical calculations and the influence of mean temperature, transport agent and moisture contents is described in detail. Single crystals of the metal rich compound InMo4O6 were grown by chemical vapor transport in a temperature gradient 1273 K to 1173 K using H2O as transport agent. The gaseous compound In2MoO4(g) accounts for the chemical vapor transport of molybdenium compounds in the metal rich part of the ternary phase diagram In/Mo/O.
- Steiner, Udo,Reichelt, Werner
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p. 1877 - 1884
(2008/10/09)
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- Indium(III) halides-catalyzed preparation of ferrocene-dihydropyrimidinones
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Indium(III) halides (chloride and bromide) catalyse the three-component Biginelli coupling of ferrocenyl-1,3-diketones, aldehydes and urea (or thiourea) to give 5-ferrocenoyl-3,4-dihydropyrimidinones. 4-Ferrocenyl-3,4-dihydropyrimidinones were obtained fr
- Fu, Nan-Yan,Yuan, Yao-Feng,Pang, Mei-Li,Wang, Ji-Tao,Peppe, Clovis
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- Sinthesis and High-Pressure Behaviour of Quaternary Chalcogenide Halides M2M'X3Y (M = Zn, Cd; M' = Al, Ga, In; X = Se, Te; Y = Cl, Br, I)
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Quaternary chalcogenide halides M2M'X3Y (M = Zn, Cd; M' = Al, Ga, In; X = Se, Te; Y = Cl, Br, I) can be synthesized by heating stoichiometric amounts of the binary components MX, MY2, and M'2X3 in evacuated sealed quartz ampoules.In the case of aluminium and gallium compounds, a mixture of the M' and X elements rather than the binary compounds has been used.The products are typical tetrahedral compounds, crystallizing with either the defect wurtzite-type or the defect zinc-blende-type structure.At 25 kbar, and 1400 deg C, Cd2InSe3Cl, Cd2InSe3Br, and Cd2InSe3I transform from the defect wurtzite-type structure to quenchable high-pressure phases with defect NaCl-type structure.The retransformation to the ambient-pressure phases proceeds via intermediates having the defect zinc-blende-type structure.Some aspects of the apparent nonstoichiometry in the high-pressure phases are discussed. - Keywords: Quaternary Chalcogenide Halides, Synthesis, Crystal Structure, High-Pressure Reactions
- Range, Klaus-Juergen,Handrick, Karin
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p. 153 - 158
(2007/10/02)
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- The crystal structure and vibrational spectrum of (C8H20N2)*H2O, a salt of the 1,1,4,4-tetramethylpiperazonium dication containing the aquopentabromoindate complex anion
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The preparation, crystal structure, and vibrational spectra ofthe title compound are reported.The compound crystallizes in the triclinic space group P1, with a = 7.386(2), b = 8.637(1), c = 16.546(2) Angstroem, α = 97.40(1) deg, β = 95.51(2) deg, γ = 112.91(2) deg, V = 951.6 Angstroem3, ρobs = 2.43 g cm-3, Z = 2, ρcalcd = 2.424 g cm-3 (MoKα,λ = 0.71069 Angstroem).The structure was solved by direct methods and electron density maps, and refined by full-matrix least squares to the final R = 0.038 for 3343 observed reflections.The structure consists of N,N,N',N'-tetramethylpiperazonium cations containing a six-membered C4N2 heterocycle, InBr5(OH2)2- anions, and additional H2O solvent molecules.Infrared and Raman spectral bands of the InBr5(OH2)2- complex are assigned on the basis of C4υ skeletal symmetry, and the H2O molecule of crystallization is also detected spectroscopically.
- Clark, George R.,Rickard, Clifton E. F.,Taylor, Michael J.
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p. 1697 - 1701
(2007/10/02)
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- STUDY OF THE ACIDITY OF ELECTRODE LAYERS UPON ELECTRODEPOSITION OF INDIUM.
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The relation between pH of the electrode layer, formation of indium with lower degrees of oxidation, and the yield of indium as a function of current upon electrolysis of chloride and chloride-bromide systems was established.
- Kozin,Sheka,Belinskii
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- Coordination compounds of indium. Part 39. Some neutral adducts of In2Br4 and In2I4
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The neutral indium(II) compounds In2X4(Et3P)2, In2X4(TMED)2, and In2X4(TMED)2C6H6 (X = Br, I; TMED = N,N,N',N'-tetramethylethylenediamine) have been prepared by the reaction of InX2 and donor in benzene or toluene.With several other neutral donors , and i
- Taylor, Michael J.,Tuck, Dennis G.,Victoriano, Luis
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p. 690 - 694
(2007/10/02)
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