Cyclopentadienyl nickel nitrosyl explained

Cyclopentadienyl nickel nitrosyl is an organonickel compound with the formula . It is a diamagnetic, volatile, relatively air-stable red liquid. It has been reported to be the simplest mono-cyclopentadienyl metal complex.^[1] It is prepared by treating nickelocene with nitric oxide.^[2] Its toxicity is said to be comparable to nickel tetracarbonyl.^[1] The complex has C_5v symmetry.

The compound reacts with lithium aluminium hydride to give the paramagnetic cluster .^[3]

The related pentamethylcyclopentadienyl complex is also known.^[4]

Cyclopentadienyl nickel nitrosyl was the subject of several patents as a fuel additive.

See also

• Cyclopentadienyl
• Cyclopentadienyl complex
• Cyclopentadiene

Notes and References

1. Book: The Organic Chemistry of Nickel: Organonickel Complexes. 464. 9780323146906. Jolly. P. W.. 2012-12-02. Elsevier .
2. 10.1016/0022-1902(55)80053-x . Cyclopentadienyl-Carbon Monoxide and Related Compounds of Some Transitional Metals . 1955 . Piper . T.S. . Cotton . F.A. . Wilkinson . G. . Journal of Inorganic and Nuclear Chemistry . 1 . 3 . 165–174 .
3. 10.1021/ja00513a030 . Neutron diffraction analysis of the structure of tetrakis(.eta.-cyclopentadienyl)trihydrotetranickel . 1979 . Koetzle . Thomas F. . Mueller . Joern . Tipton . Donald L. . Hart . Donald W. . Bau . Robert . Journal of the American Chemical Society . 101 . 19 . 5631–5637 .
4. 10.1021/ic9713644 . Combined X-ray Diffraction and Density Functional Study of [Ni(NO)(η⁵-Cp*)] in the Ground and Light-Induced Metastable States . 1998 . Fomitchev . Dmitry V. . Furlani . Thomas R. . Coppens . Philip . Inorganic Chemistry . 37 . 7 . 1519–1526 .