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

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]

References

  1. ^ a b c d 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. ^ a b 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.
Allikas: https://en.wikipedia.org/wiki/Germanium_dibromide
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