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Nickelocene

Nickelocene freshly depositied on a cold fingerNames Preferred IUPAC nameNickeloceneOther names Bis(cyclopentadienyl) nickel(II)Identifiers CAS Number1271-28-93D model (JSmol)Interactive imageChEBICHEBI:30679ChemSpider56178ECHA InfoCard100.013.672EC Number215-039-0Gmelin Reference3412 PubChemCID13628993RTECS numberQR6500000UNIIJR8F745XV5UN number1325 3082 CompTox Dashboard(EPA)DTXSID8025709InChIInChI=1S/2C5H5.Ni/c2*1-2-4-5-3-1;/h2*1-5H;/q2*-1;+2Key: KZPXREABEBSAQM-UHFFFAOYSA-NSMILESC1=C[CH-](C=C1).[Ni+2].[CH-](C=C2)C=C2Properties Chemical formulaC10H10Ni Molar mass188.88 g/mol Appearance Green crystals Density1.47 g/cm Melting point171 to 173 °C (340 to 343 °F; 444 to 446 K) Solubility in waterinsoluble Structure Coordination geometryD5h, D5dDipole moment0 DHazards GHS labelling: PictogramsSignal wordDangerHazard statementsH228, H302, H317, H350Precautionary statementsP201, P202, P210, P240, P241, P261, P264, P270, P272, P280, P281, P301+P312, P302+P352, P308+P313, P321, P330, P333+P313, P363, P370+P378, P405, P501NFPA 704 (fire diamond) 242Lethal dose or concentration (LD, LC): LD50 (median dose)490 mg kg (oral, rat) 600 mg kg (oral, mouse) Related compounds Related compoundsCoCp2, FeCp2Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).Nverify ( ?)

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