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Germanium tetrafluoride is a noncombustible, strongly fuming gas with a garlic-like odor. It reacts with water to form hydrofluoric acid and germanium dioxide. Decomposition occurs above 1000 °C. [5] Reaction of GeF 4 with fluoride sources produces GeF 5 − anions with octahedral coordination around Ge atom due to polymerization. [6]
Xenon tetrafluoride is a colorless crystalline solid that sublimes at 117 °C. Its structure was determined by both NMR spectroscopy and X-ray crystallography in 1963. [ 6 ] [ 7 ] The structure is square planar , as has been confirmed by neutron diffraction studies. [ 8 ]
Lewis structure of a water molecule. Lewis structures – also called Lewis dot formulas, Lewis dot structures, electron dot structures, or Lewis electron dot structures (LEDs) – are diagrams that show the bonding between atoms of a molecule, as well as the lone pairs of electrons that may exist in the molecule.
Tin(IV) fluoride is a chemical compound of tin and fluorine with the chemical formula SnF 4 and is a white solid with a melting point above 700 °C. [1] SnF 4 can be prepared by the reaction of tin metal with fluorine gas: [2] Sn + 2F 2 → SnF 4. However, a passivating metal fluoride layer will be created and the surface will eventually become ...
Spartan is a molecular modelling and computational chemistry application from Wavefunction. [2] It contains code for molecular mechanics , semi-empirical methods , ab initio models , [ 3 ] density functional models , [ 4 ] post-Hartree–Fock models, [ 5 ] and thermochemical recipes including G3(MP2) [ 6 ] and T1. [ 7 ]
A notable derivative of GeCl 4 is germanium dioxide.In the manufacture of optical fibers, silicon tetrachloride, SiCl 4, and germanium tetrachloride, GeCl 4, are introduced with oxygen into a hollow glass preform, which is carefully heated to allow for oxidation of the reagents to their respective oxides and formation of a glass mixture.
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It is named after Warren K. Lewis (1882–1975), [6] [7] who was the first head of the Chemical Engineering Department at MIT. Some workers in the field of combustion assume (incorrectly) that the Lewis number was named for Bernard Lewis (1899–1993), who for many years was a major figure in the field of combustion research. [citation needed]