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Germanium dibromide

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Germanium dibromide
Identifiers

CAS Number	24415-00-7^Y
3D model (JSmol)	Interactive image
ChemSpider	4885753
ECHA InfoCard	100.155.797
EC Number	627-437-5
PubChem CID	6327224
InChI InChI=1S/Br2Ge/c1-3-2 Key: DUVPPTXIBVUIKL-UHFFFAOYSA-N
SMILES Br[Ge]Br
Properties
Chemical formula	Br₂Ge
Molar mass	232.438 g·mol⁻¹
Appearance	white to pale yellow solid^[1]
Melting point	120–125 °C^[2] 143–144 °C (when heating rapidly)^[1]
Hazards
GHS labelling:^[3]
Pictograms
Signal word	Danger
Hazard statements	H314
Precautionary statements	P260,P264,P280,P301+P330+P331,P302+P361+P354,P304+P340,P305+P354+P338,P316,P321,P363,P405,P501
Related compounds
Otheranions	Germanium difluoride Germanium dichloride Germanium diiodide
Othercations	Tin dibromide Lead dibromide
Related compounds	Germanium tetrabromide
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). Infobox references

Chemical compound

Germanium dibromide is abromide ofgermanium with the chemical formula GeBr₂.

Germanium dibromide can be obtained by reducing germanium tetrabromide with germanium orzinc.^[4]^[1]

Ge + GeBr₄ → 2 GeBr₂

Germanium dibromide is a yellow-white solid that is soluble inethanol andacetone. It disproportionates into germanium tetrabromide and germanium.^[1]^[5] It hydrolyzes togermanium dihydroxide.^[4] Germanium dibromide ismonoclinic,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 withcyclopentadienylsodium orcyclopentadienylthallium inether solvent to formgermanocene.^[7]

^^a ^b ^c ^dGeorg Brauer (Hrsg.), unter Mitarbeit vonMarianne Baudler u. a.:Handbuch der Präparativen Anorganischen Chemie. 3., umgearbeitete Auflage. Band I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6, S. 724.
^Sigma-Aldrich Co.,Germanium(II) bromide, 97%.
^"Germanium(II) bromide".pubchem.ncbi.nlm.nih.gov.
^^a ^bHolleman, 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
^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,Bibcode:1928ZAACh.174...97D,doi:10.1002/zaac.19281740114
^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)
^John V. Scibelli, M. David. Curtis (February 1973)."Bis(.pi.-cyclopentadienyl)germanium(II)".Journal of the American Chemical Society.95 (3):924–925.Bibcode:1973JAChS..95..924S.doi:10.1021/ja00784a051.ISSN 0002-7863. Retrieved2021-06-10.