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Cobaltocene

Names IUPAC namesCobaltoceneBis(η-cyclopentadienyl)cobaltOther names Cp2CoIdentifiers CAS Number1277-43-63D model (JSmol)Interactive imageChEBICHEBI:30678ChemSpider83848ECHA InfoCard100.013.692EC Number215-061-0PubChemCID22045960RTECS numberGG0350000UNII4W7LGU89CVCompTox Dashboard(EPA)DTXSID0024840InChIInChI=1S/2C5H5.Co/c2*1-2-4-5-3-1;/h2*1-5H;/q2*-1;+2Key: ILZSSCVGGYJLOG-UHFFFAOYSA-NInChI=1/2C5H5.Co/c2*1-2-4-5-3-1;/h2*1-5H;/q2*-1;+2Key: ILZSSCVGGYJLOG-UHFFFAOYAMSMILES[cH-]1cccc1.[cH-]1cccc1.[Co+2]Properties Chemical formula[Co(η-C5H5)2] Molar mass189.12 g/mol Appearance Dark purple solid Melting point171–173 °C (340–343 °F; 444–446 K) Solubility in waterInsoluble Structure Coordination geometrysandwich Dipole momentzero Thermochemistry Std molarentropy(S298)236 J K mol Std enthalpy offormation(ΔfH298)+237 kJ/mol (uncertain) Std enthalpy ofcombustion(ΔcH298)−5839 kJ/mol Hazards GHS labelling: PictogramsSignal wordDangerHazard statementsH228, H317, H334, H341, H351Precautionary statementsP210, P261, P280, P363, P405, P501NFPA 704 (fire diamond) 120Related compounds Related metallocenesFerroceneNickeloceneRhodoceneDecamethylcobaltoceneExcept where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).Nverify ( ?)

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