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Pentacarbonyl(4-phenylpyridine)tungsten(0) and pentacarbonyl(2-phenylpyridine)chromium(0)
B S Creaven1, R A Howie, C Long
1The School of Chemical Sciences, Dublin City University, Dublin 9, Ireland.
Abstract:
In pentacarbonyl(4-phenylpyridine)tungsten(0), [W(C(11)H(9)N)(CO)(5)], the molecules have mm site symmetry and the pyridine ligand, with m symmetry, is completely planar. In pentacarbonyl(2-phenylpyridine)chromium(0), [Cr(C(11)H(9)N)(CO)(5)], the molecules are in general positions and the phenyl and pyridine rings of the ligand are twisted by 67.7 (3) degrees with respect to one another by rotation about the C-C bond joining them. In both compounds, the axial M-C(carbonyl) bond trans to the M-N(ligand) bond is significantly shorter than the equatorial M-C(carbonyl) bonds.