Cobalt tricarbonyl nitrosyl
Names
Other names
Cobalt nitrosyl tricarbonyl
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.034.481
EC Number
  • 237-945-5
  • InChI=1S/3CO.Co.NO/c3*1-2;;1-2/q;;;+1;-1
    Key: XDBBIZGDISXSEJ-UHFFFAOYSA-N
  • [C]=O.[C]=O.[C]=O.N(=O)[Co]
Properties
C3CoNO4
Molar mass 172.969 g·mol−1
Appearance red oil
Density 1.47 g/cm3
Melting point −1.1 °C (30.0 °F; 272.0 K)
Boiling point 50 °C (122 °F; 323 K)
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 toxic
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Cobalt tricarbonyl nitrosyl is the organocobalt compound with the formula Co(CO)3(NO). 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.

Synthesis and reactions

Cobalt tricarbonyl nitrosyl is prepared by the treatment of dicobalt octacarbonyl with nitric oxide:[1]

Co2(CO)8 + 2 NO → 2 Co(CO)3NO + 2 CO

Many other methods have been developed.

The complex undergoes substitution readily by Lewis bases such as tertiary phosphines and isocyanides, concomitant with loss of CO.[2]

References

  1. ↑ King, R. B. "Organometallic Synthesis, Volume 1: Transition-metal compounds" (1965) Academic Press. ISBN 0124080502
  2. ↑ Hering, Florian; Berthel, Johannes H. J.; Lubitz, Katharina; Paul, Ursula S. D.; Schneider, Heidi; Härterich, Marcel; Radius, Udo (2016). "Synthesis and Thermal Properties of Novel NHC-Stabilized Cobalt Carbonyl Nitrosyl Complexes". Organometallics. 35 (17): 2806–2821. doi:10.1021/acs.organomet.6b00374.
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