7783-58-6Relevant academic research and scientific papers
Thermal behavior of ammonium-containing titanium and germanium fluoride complexes (NH4)4Li2(AF6)3 and NH4NaAF6 (A = Ge or Ti)
Antokhina,Flerov,Savchenko,Kaidalova,Merkulov,Ignat'eva,Fokina
, p. 583 - 587 (2008)
The compounds (NH4)4Li2A3F 18 and NH4NaAF6 (A = Ge or Ti) were studied thermogravimetrically. These fluoro complexes are thermolyzed in the range 230-450°C. Measurements on a differential scanning microcalorimeter revealed reversible phase transitions in NH4NaAF6 at T 1 = 126°C and T 2 = 111°C.
New Derivatives of Tetrahydroborate(1-), BH3SiF3- and BH2(SiF3)2-
Brownstein, Sydney
, p. 149 - 150 (1980)
Silicon tetrafluoride and tetrabutylammonium (TBA) tetrahydroborate react in methylene chloride solution to produce and .
Determination of impurities in germanium tetrafluoride by IR spectroscopy and gas chromatography
Sennikov,Bulanov,Krylov,Sorochkina
, p. 1147 - 1150 (2010)
Using high-resolution Fourier-transform IR spectroscopy and gas chromatography, we have identified more than 20 impurity species, in concentrations from 10-1 to 10-5 vol %, in GeF4 samples of different isotopic composition
The Influence of the Counterions [AsF6]– and [GeF6]2– on the Structure of the [ClSO2NH3]+ Cation
Leitz, Dominik,Stierstorfer, Karin,Morgenstern, Yvonne,Zischka, Florian,Kornath, Andreas J.
, p. 483 - 488 (2018/05/14)
Chlorosulfonamide reacts in the superacidic solutions HF/GeF4 and HF/AsF5 under the formation of ([ClSO2NH3]+)2[GeF6]2– and [ClSO2NH3]+/sup
Industrial fluorine compounds
Barabanov,Maksimov
, p. 1133 - 1141 (2009/12/01)
Technological research in the area of the industrial fluorine-containing compounds: ozone safe fluorocarbons (freons), fluoro-olefins, compounds with the functional groups, thermoresistant liquids, oils, lubricants, fluorine surfactants and other.
Fluorination of germanium concentrates with ammonium fluorides
D'yachenko,Kraidenko
, p. 952 - 955 (2008/12/22)
New method for processing of germanium-containing raw materials to obtain germanium oxide was suggested and studied. The method is based on the fluorination of germanium-containing raw materials with ammonium fluorides, followed by a sublimation isolation of ammonium hexafluorogermanate, its dissolution, and precipitation of germanium oxide from solution. The thermodynamics of the process was calculated and its thermogravimetric analysis was made. The kinetics of germanium oxide fluorination by ammonium hydrodifluoride was experimentally studied. A technological scheme for processing of germanium-containing raw materials with ammonium fluoride was suggested.
About the new mixed valent Ge7F16: [GeF6]2- octahedra between [Ge6F10]2+ sheets - A contribution to the stereochemical activity of lone pairs
Koehler,Chang
, p. 596 - 602 (2008/10/09)
For the first time Ge7F16 colourless transparent single crystals have been prepared by the reduction of GeF4 with Ge at 300°C. The extremely hygroscopic fluoride crystallizes in a new structure type in Cc with a = 1818.0(6) pm, b = 754.3(2) pm, c = 1030.4(3) pm, β = 90.33(3)° und Z = 4. Ge7F16 is a mixed valent fluoride according to 6GeF2×GeF4. Characteristical building units of the new structure type are [Ge6F10]2+ sheets, which are connected via [GeF6]2- octahedra. The Ge2+ within the sheets are coordinated by three nearest F- with distances of 183-218 pm and together with these form distorted trigonal pyramids. The structure of Ge7F16 can be considered as a member of the homologues series Gem4+Gen2+F4m+2n with m = 1 and n = 6. Bond order summations, band structure calculations and calculations of the Madelung part of the lattice energy, MAPLE, have been used for the discussion of the bonding situation.
Matrix Reactions of SiH4 and GeH4 with F2. Infrared Spectra of Several HF Product Complexes
McInnis, Thomas C.,Andrews, Lester
, p. 5276 - 5284 (2007/10/02)
Silane and germane were condensed with F2 at high dilution in argon on a 13 +/- 1 K substrate.Weak product complexes produced on condensation and increased by ultraviolet photolysis are assigned to SiH3F..HF, SiH2..HF or SiH2..(HF)2, and HSiF..HF.Annealing produced new bands due to F atom reactions that are attributed to SiH3..HF.The GeH3F molecule was observed in the similar GeH3F..HF complex.H-F vibrations in these complexes suggest that F is more basic in GeH3F than in SiH3F owing to the more electropositive nature of germanium as compared to silicon.
Thermochemistry of germanium monoselenide, and the Ge-Se bond dissociation enthalpy
O'Hare, P. A. G.,Susman, S.,Volin, K. J.
, p. 827 - 836 (2007/10/02)
The standard molar enthalpy of formation ΔfH0m of GeSe(cr) has been determined by fluorine-combustion calorimetry to be -(51.4 +/- 1.5) kJ * mol-1 at T = 298.15 K and p0 = 101.325 kPa.Combination of t
