Germanium dibromide

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Germanium dibromide
GeBr2.png
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.155.797 OOjs UI icon edit-ltr-progressive.svg
EC Number
  • 627-437-5
PubChem CID
  • InChI=1S/Br2Ge/c1-3-2
    Key: DUVPPTXIBVUIKL-UHFFFAOYSA-N
  • Br[Ge]Br
Properties
Br2Ge
Molar mass 232.438 g·mol−1
Appearancewhite to pale yellow solid [1]
Melting point 120–125 °C [2]
143–144 °C (when heating rapidly) [1]
Hazards
GHS labelling: [3]
GHS-pictogram-acid.svg
Danger
H314
P260, P264, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P405, P501
Related compounds
Other anions
Germanium difluoride
Germanium dichloride
Germanium diiodide
Other cations
Tin dibromide
Lead dibromide
Related compounds
 Germanium tetrabromide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Germanium dibromide is a bromide of germanium with the chemical formula GeBr2.

Contents

Preparation

Germanium dibromide can be obtained by reducing germanium tetrabromide with germanium or zinc. [4] [1]

Ge + GeBr4 → 2 GeBr2

Properties

Germanium dibromide is a yellow-white solid that is soluble in ethanol and acetone. It disproportionates into germanium tetrabromide and germanium. [1] [5] It hydrolyzes to germanium dihydroxide. [4] Germanium dibromide is monoclinic, space group P21/c (No. 14), lattice parameters a = 11.68 Å, b = 9.12 Å, c = 7.02 Å, and β = 101.9°. [6] It can react with cyclopentadienylsodium or cyclopentadienylthallium in ether solvent to form germanocene. [7]

Related Research Articles

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<span class="mw-page-title-main">Iron(II) bromide</span> Chemical compound

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<span class="mw-page-title-main">Indium(III) bromide</span> Chemical compound

Indium(III) bromide, (indium tribromide), InBr3, is a chemical compound of indium and bromine. It is a Lewis acid and has been used in organic synthesis.

There are three sets of Indium halides, the trihalides, the monohalides, and several intermediate halides. In the monohalides the oxidation state of indium is +1 and their proper names are indium(I) fluoride, indium(I) chloride, indium(I) bromide and indium(I) iodide.

<span class="mw-page-title-main">Beryllium bromide</span> Chemical compound

Beryllium bromide is the chemical compound with the formula BeBr2. It is very hygroscopic and dissolves well in water. The Be2+ cation, which is relevant to BeBr2, is characterized by the highest known charge density (Z/r = 6.45), making it one of the hardest cations and a very strong Lewis acid.

<span class="mw-page-title-main">Silicon tetrabromide</span> Chemical compound

Silicon tetrabromide, also known as tetrabromosilane, is the inorganic compound with the formula SiBr4. This colorless liquid has a suffocating odor due to its tendency to hydrolyze with release of hydrogen bromide. The general properties of silicon tetrabromide closely resemble those of the more commonly used silicon tetrachloride.

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Polonium dibromide (also known as polonium(II) bromide) is a chemical compound with the formula PoBr2. This salt is a purple-brown crystalline solid at room temperature. It sublimes (decomposing slightly) at 110 °C/30 μ and decomposes when melted in nitrogen gas at 270–280 °C.

<span class="mw-page-title-main">Germanium(IV) iodide</span> Chemical compound

Germanium(IV) iodide is an inorganic compound with the chemical formula GeI4.

<span class="mw-page-title-main">Bromopentaamminecobalt(III) bromide</span> Chemical compound

Bromopentaamminecobalt(III) bromide is the dibromide salt of the cobalt coordination compound with the formula [Co(NH3)5Br]2+. It is a purple, water-soluble solid. The analogous chloropentaamminecobalt(III) chloride is also well known.

<span class="mw-page-title-main">Titanium(IV) nitrate</span> Chemical compound

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<span class="mw-page-title-main">Thulium dibromide</span> Chemical compound

Thulium dibromide is an inorganic compound, with the chemical formula of TmBr2. It is a dark green solid that is easy to dissolve, with the SrI2 structure and it needs to be stored in an inert atmosphere.

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Iridium(III) bromide is a bromide of iridium(III), with the chemical formula of IrBr3.

Germanium bromide may refer to:

Neptunium(III) bromide is a bromide of neptunium, with the chemical formula of NpBr3.

<span class="mw-page-title-main">Ytterbium(II) bromide</span> Chemical compound

Ytterbium(II) bromide is an inorganic compound with the chemical formula YbBr2.

References

  1. 1 2 3 4 Georg Brauer (Hrsg.), unter Mitarbeit von Marianne Baudler u. a.: Handbuch der Präparativen Anorganischen Chemie. 3., umgearbeitete Auflage. Band I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6, S. 724.
  2. ↑ Sigma-Aldrich Co., Germanium(II) bromide, 97%.
  3. ↑ "Germanium(II) bromide". pubchem.ncbi.nlm.nih.gov.
  4. 1 2 Holleman, Arnold Frederik; Wiberg, Egon (2001), Wiberg, Nils (ed.), Inorganic Chemistry, translated by Eagleson, Mary; Brewer, William, San Diego/Berlin: Academic Press/De Gruyter, p. 959, ISBN   0-12-352651-5
  5. ↑ L. M. Dennis (1928-08-02), "Germanium. Zusammenfassung der Untersuchungen im Department of Chemistry, Cornell University, 1921-1927", Zeitschrift fÜr anorganische und allgemeine Chemie, vol. 174, no. 1, pp. 97–141, doi:10.1002/zaac.19281740114
  6. ↑ Roland C. Rouse, Donald R. Peacor, Bruce R. Maxim (1977-01-01), "The crystal structure of germanium dibromide*", Zeitschrift für Kristallographie - Crystalline Materials, vol. 145, no. 3–4, pp. 161–171, Bibcode:1977ZK....145..161R, doi:10.1524/zkri.1977.145.3-4.161, ISSN   2194-4946 {{citation}}: CS1 maint: multiple names: authors list (link)
  7. ↑ John V. Scibelli, M. David. Curtis (February 1973). "Bis(.pi.-cyclopentadienyl)germanium(II)". Journal of the American Chemical Society. 95 (3): 924–925. doi:10.1021/ja00784a051. ISSN   0002-7863 . Retrieved 2021-06-10.
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