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  2. Germanium tetrafluoride - Wikipedia

    en.wikipedia.org/wiki/Germanium_tetrafluoride

    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]

  3. Xenon tetrafluoride - Wikipedia

    en.wikipedia.org/wiki/Xenon_tetrafluoride

    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 ]

  4. Lewis structure - Wikipedia

    en.wikipedia.org/wiki/Lewis_structure

    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.

  5. Germanium difluoride - Wikipedia

    en.wikipedia.org/wiki/Germanium_difluoride

    Germanium difluoride forms orthorhombic crystals with a space group P2 1 2 1 2 1 (No. 19), Pearson symbol oP12, and lattice constants a = 0.4682 nm, b = 0.5178 nm, c = 0.8312 nm, Z = 4 (four structure units per unit cell). Its crystal structure is characterized by strong polymeric chains composed by GeF 3 pyramids.

  6. Germanium tetrachloride - Wikipedia

    en.wikipedia.org/wiki/Germanium_tetrachloride

    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.

  7. Spartan (chemistry software) - Wikipedia

    en.wikipedia.org/wiki/Spartan_(chemistry_software)

    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 ]

  8. Tin(IV) fluoride - Wikipedia

    en.wikipedia.org/wiki/Tin(IV)_fluoride

    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 ...

  9. Molecule editor - Wikipedia

    en.wikipedia.org/wiki/Molecule_editor

    A notable molecule editor is a computer program for creating and modifying representations of chemical structures.. Molecule editors can manipulate chemical structure representations in either a simulated two-dimensional space or three-dimensional space, via 2D computer graphics or 3D computer graphics, respectively.