7783-52-0Relevant articles and documents
Chlorine evolution during the fusion of chlorofluoroindate glasses
Delben,Rojas,Miazato,Melnikov,Delben,Cardoso,Job
, p. 469 - 472 (2005)
Samples with a composition of 40InF3-20ZnF2-5MCl- xBaF2-ySrF2, where M=Na, Li and x+y=35 mol%, were prepared. The thermal properties related to the Ba/Sr ratio and to the remaining chlorine content in the glasses were studied. Thermal stability is improved with the addition of chlorine. However, chlorine concentration is regulated by the sublimation of indium fluorides which takes place at about 600°C. Indium fluorides arc formed during glass fusion. The mechanisms of chlorine sublimation were studied.
Araujo, Luis E. E. de,Gomes, A. S. L.,Araujo, Cid B. de,Messaddeq, Y.,Florez, A.,Aegerter, M. A.
, (1994)
The crystal structure of the weberite Na2MgInF7
Caramanian, Armen,Souron, Jean-Paul,Gredin, Patrick,De Kozak, Ariel
, p. 234 - 238 (2001)
The fluoride Na2MgInF7 is orthorhombic: a = 10.435(1) A, b = 7.345(1) A, c = 7.553(1) A, Z = 4. Its crystal structure was solved in the space group Pnma (No. 62), from X-ray single crystal data using 1879 unique reflections (1183 with Fo/σ(Fo)>4). The three-dimensional network is built up from tilted chains of trans corner-sharing [MgF6] octahedra running along the shortest axis of the cell. These chains are linked together through four corners of [InF6] octahedra. The sodium ions are 8 and 7 coordinated to fluorine. The [NaF8] polyhedron can be described as a distorted cube, whereas the [NaF7] polyhedron is a pentagonal bipyramid. Despite a different space group, the crystal structure of Na2MgInF7 can be easily related to the orthorhombic body-centered weberite-type structure.
Structure and thermal stability of novel fluorophosphate glasses
Sun, Hongtao,Zhang, Liyan,Xu, Shiqing,Dai, Shixun,Zhang, Junjie,Hu, Lili,Jiang, Zhonghong
, p. 151 - 155 (2005)
A systematic investigation on glass formation in the PbF 2-InF3-BaHPO4 ternary system has been carried out. These glasses have characterized by IR spectra, Raman spectra and differential thermal analysis. The results show that the structure of these glasses is mainly affected by BaHPO4 and InF3 contents. With decreasing BaHPO4 content, the glass structure gradually transforms from metaphosphate to polyphosphate. When InF3 content is low, it mainly acts as network modifier, when its content is high; it enters glass matrix and forms In(O,F)6 groups connecting the polymerized phosphorus oxygen species. PbF2 mainly acts as network modifier in this system. Systematic variations of the glass transition temperature and the thermal stability index agree well with these results. The most stable glass with ΔT = 230 °C and S = 21.79 K is obtained.
Frequency upconversion in Er3+-doped fluoroindate glasses pumped at 1.48 μm
Maciel,De Araujo, Cid B.,Messaddeq,Aegerter
, p. 6335 - 6342 (1997)
We report on efficient frequency upconversion in Er3+-doped fluoroindate glass. The process is observed under 1.48 μm laser diode excitation and results in fluorescence generation in the range from ultraviolet to near-infrared radiation. The study was performed for samples containing 1, 2, and 3 ErF3 mol % in the range of temperatures from 24 to 448 K. The upconverted signals were studied as a function of the laser intensity, and their dynamical behavior is described using a rate equation model which allows us to obtain the energy transfer rates between Er3+ ions in pairs and triads.
Quantum-chemical calculations and IR spectra of the (F2)MF 2 molecules (M = B, Al, Ga, In, Tl) in solid matrices: A new class of very high electron affinity neutral molecules
Wang, Xuefeng,Andrews, Lester
, p. 3768 - 3771 (2011/04/26)
Electron-deficient group 13 metals react with F2 to give the compounds MF2 (M = B, Al, Ga, In, Tl), which combine with F 2 to form a new class of very high electron affinity neutral molecules, (F2)MF2, in solid argon and neon. These (F 2)MF2 fluorine metal difluoride molecules were identified through matrix IR spectra containing new antisymmetric and symmetric M-F stretching modes. The assignments were confirmed through close comparisons with frequency calculations using DFT methods, which were calibrated against the MF3 molecules observed in all of the spectra. Electron affinities calculated at the CCSD(T) level fall between 7.0 and 7.8 eV, which are in the range of the highest known electron affinities.
Indium(I) hexafluoropnictates (InPnF6; Pn = P, As, Sb)
Mazej, Zoran
, p. 3983 - 3987 (2007/10/03)
The colourless compounds InPnF6 (Pn = P, As, Sb), with In I in a solely fluorine environment, were prepared by reacting In metal with PnF5 (Pn = P) and displacement of the weaker Lewis acid BF3 from InBF4 by a stronger one, PnF5 (Pn = As, Sb), in anhydrous hydrogen fluoride (aHF). The X-ray powder diffraction analyses show that InPF6 crystallises in cubic unit cell with a = 8.07(2) A, while InAsF6 crystallises in a rhombohedral unit cell with a = 7.58(2) and c = 7.90(1) A. The Raman spectra of InPnF 6 (Pn = P, As, Sb) confirm the formation of PnF6 - salts. An attempt to prepare InF and In2F4 (InIInIIIF4) by reaction of CsF with InSbF 6 in aHF or by metathetical reaction of InSbF6 with CsInF4 in aHF, respectively, failed. Instead of InF and In 2F4, respectively, a mixture of In and InF3 was obtained. Wiley-VCH Verlag GmbH & Co. KGaA, 2005.
