Germanium dibromide
Chemical compound
From Wikipedia, the free encyclopedia
Germanium dibromide is a bromide of germanium with the chemical formula GeBr2.
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| Identifiers | |
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3D model (JSmol) |
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| ChemSpider | |
| ECHA InfoCard | 100.155.797 |
| EC Number |
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PubChem CID |
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| Properties | |
| 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] | |
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| 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).
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Preparation
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]