M. Jaeger et al., Novel hepta-coordinated molybdenum(II) and tungsten(II) carbene complexes by oxidative decarbonylation of Mo(0) and W(0) carbene complexes, CHEM COMMUN, (11), 2000, pp. 931-932
C,O-Chelated tetracarbonyl[o-methoxyphenyl(methoxy)-carbene] complexes of m
olybdenum(0) and tungsten(0) react with tin tetrahalides SnX4 (X = Cl, Br,
I) by oxidative decarbonylation and incorporation of two halides to form no
vel chelated hepta-coordinated Fischer-type tricarbonyl-(bishalogeno)carben
e molybdenum(II) and tungsten(II) complexes.