Cobalt tricarbonyl nitrosyl is the

organocobalt compound Organocobalt chemistry is the chemistry of organometallic compounds containing a carbon to cobalt chemical bond. Organocobalt compounds are involved in several organic reactions and the important biomolecule vitamin B12 has a cobalt-carbon bond. ...

with the formula Co(CO)₃NO. It is a dark red volatile oil that is soluble in nonpolar solvents. The compound is one of the simplest metal nitrosyls. It is highly toxic, reminiscent of the same property for

nickel tetracarbonyl Nickel carbonyl (IUPAC name: tetracarbonylnickel) is a nickel(0) organometallic compound with the formula Ni(CO)4. This colorless liquid is the principal carbonyl of nickel. It is an intermediate in the Mond process for producing very high-pur ...

Synthesis and reactions

Cobalt tricarbonyl nitrosyl is prepared by the treatment of

dicobalt octacarbonyl Dicobalt octacarbonyl is an organocobalt compound with composition . This metal carbonyl is used as a reagent and catalyst in organometallic chemistry and organic synthesis, and is central to much known organocobalt chemistry. It is the parent me ...

with

nitric oxide Nitric oxide (nitrogen oxide or nitrogen monoxide) is a colorless gas with the formula . It is one of the principal oxides of nitrogen. Nitric oxide is a free radical: it has an unpaired electron, which is sometimes denoted by a dot in its ...

: :Co₂(CO)₈ + 2NO → 2Co(CO)₃NO + 2CO Many other methods have been developed. The complex undergoes substitution readily by Lewis bases such as tertiary phosphines and

isocyanide An isocyanide (also called isonitrile or carbylamine) is an organic compound with the functional group –. It is the isomer of the related nitrile (–C≡N), hence the prefix is ''isocyano''.IUPAC Goldboo''isocyanides''/ref> The organic fra ...

s, concomitant with loss of CO.{{cite journal , doi=10.1021/acs.organomet.6b00374, title=Synthesis and Thermal Properties of Novel NHC-Stabilized Cobalt Carbonyl Nitrosyl Complexes, year=2016, last1=Hering, first1=Florian, last2=Berthel, first2=Johannes H. J., last3=Lubitz, first3=Katharina, last4=Paul, first4=Ursula S. D., last5=Schneider, first5=Heidi, last6=Härterich, first6=Marcel, last7=Radius, first7=Udo, journal=Organometallics, volume=35, issue=17, pages=2806–2821

References

Carbonyl complexes Nitrosyl complexes Organocobalt compounds