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Names | |
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IUPAC name azanylidyneoxidanium;cyclopenta-1,3-diene;nickel | |
Other names Cyclopentadienylnickelnitrosyl (6CI); Nickel, nitrosylcyclopentadienyl- (7CI); Contents | |
Identifiers | |
3D model (JSmol) | |
ChemSpider | |
PubChem CID | |
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Properties | |
(C 5 H 5)Ni N O | |
Molar mass | 153.7927 g/mol |
Appearance | Blood-red liquid |
Odor | Unpleasant, disagreeable [1] |
Melting point | −41 °C (−42 °F; 232 K) |
Boiling point | 144–145 °C (291–293 °F; 417–418 K) |
Insoluble [1] | |
Solubility | Very soluble in all organic compounds |
Hazards | |
Occupational safety and health (OHS/OSH): | |
Main hazards | Extremely Toxic (T+) |
GHS labelling: | |
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NFPA 704 (fire diamond) | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
Cyclopentadienyl nickel nitrosyl is an organonickel compound with the formula (C5H5)NiNO. It is a diamagnetic, volatile, relatively air-stable red liquid. It has been reported to be the simplest mono-cyclopentadienyl metal complex. [2] It is prepared by treating nickelocene with nitric oxide. [3] The complex has C5v symmetry.
The compound reacts with lithium aluminium hydride to give the paramagnetic cluster (C5H5)4Ni4H3. [4]
The related pentamethylcyclopentadienyl complex (C5(CH3)5)NiNO is also known. [5]
Cyclopentadienyl nickel nitrosyl was the subject of several patents as a fuel additive. [6] [7] [8]
Its toxicity is said to be comparable to nickel tetracarbonyl. [2]