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Names | |||
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Preferred IUPAC name
Nickelocene[1] | |||
Other names
Bis(cyclopentadienyl) nickel(II)
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Identifiers | |||
3D model (JSmol)
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ChEBI | |||
ChemSpider | |||
ECHA InfoCard | 100.013.672 | ||
EC Number |
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3412 | |||
PubChem CID
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RTECS number |
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UNII | |||
UN number | 1325 3082 | ||
CompTox Dashboard (EPA)
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Properties | |||
C10H10Ni | |||
Molar mass | 188.88 g/mol | ||
Appearance | Green crystals | ||
Density | 1.47 g/cm3 | ||
Melting point | 171 to 173 °C (340 to 343 °F; 444 to 446 K) | ||
insoluble | |||
Structure | |||
D5h, D5d | |||
0 D | |||
Hazards | |||
GHS labelling: | |||
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Danger | |||
H228, H302, H317, H350 | |||
P201, P202, P210, P240, P241, P261, P264, P270, P272, P280, P281, P301+P312, P302+P352, P308+P313, P321, P330, P333+P313, P363, P370+P378, P405, P501 | |||
NFPA 704 (fire diamond) | |||
Lethal dose or concentration (LD, LC): | |||
LD50 (median dose)
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490 mg kg−1 (oral, rat) 600 mg kg−1 (oral, mouse) | ||
Related compounds | |||
Related compounds
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CoCp2, FeCp2 | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Nickelocene is the organonickel compound with the formula Ni(η5-C5H5)2. Also known as bis(cyclopentadienyl)nickel or NiCp2, this bright green paramagnetic solid is of enduring academic interest,[2] although it does not yet have any known practical applications.