Nickelocene

Nickelocene
Nickelocene
Nickelocene
Space-filling model of nickelocene
Space-filling model of nickelocene
Names
Preferred IUPAC name
Nickelocene[1]
Other names
Bis(cyclopentadienyl) nickel(II)
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.013.672 Edit this at Wikidata
EC Number
  • 215-039-0
3412
RTECS number
  • QR6500000
UNII
UN number 1325 3082
  • InChI=1S/2C5H5.Ni/c2*1-2-4-5-3-1;/h2*1-5H;/q2*-1;+2
    Key: KZPXREABEBSAQM-UHFFFAOYSA-N
  • C1=C[CH-](C=C1).[Ni+2].[CH-](C=C2)C=C2
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:
GHS02: FlammableGHS07: Exclamation markGHS08: Health hazard
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)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 4: Will rapidly or completely vaporize at normal atmospheric pressure and temperature, or is readily dispersed in air and will burn readily. Flash point below 23 °C (73 °F). E.g. propaneInstability 2: Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water. E.g. white phosphorusSpecial hazards (white): no code
2
4
2
Lethal dose or concentration (LD, LC):
490 mg kg−1 (oral, rat)
600 mg kg−1 (oral, mouse)
Related compounds
Related compounds
 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.

  1. ^ International Union of Pure and Applied Chemistry (2014). Nomenclature of Organic Chemistry: IUPAC Recommendations and Preferred Names 2013. The Royal Society of Chemistry. p. 1041. doi:10.1039/9781849733069. ISBN 978-0-85404-182-4.
  2. ^ Elschenbroich, C. (2006). Organometallics. Weinheim: Wiley-VCH. ISBN 978-3-527-29390-2.