Tetracarbonyl(eta(2:2)-1,5-cyclooctadiene)molybdenum(0)

1997-02-15
Ulku, D
Tahir, MN
Özkar, Saim
In the title compound, tetracarbonyl[(1,2,5,6-eta)-1,5-cyclooctadiene]molybdenum(0), [MO(C8H12)(CO)(4)], the coordination polyhedron around the metal atom is a distorted octahedron. The Mo-C bond distance for CO groups trans to a C=C unit is significantly shortened [average value 1.948 (8) Angstrom], while the Mo-C bond distances for the cis groups are only slightly shortened [average value 2.031 (8) Angstrom], compared with the values reported for [Mo(CO)(6)]. The average distance of the Mo atom to the midpoints of the olefinic C=C bonds is 2.388 (8) Angstrom.