Acta Cryst. (2004). E60, m1966-m1969  [ doi:10.1107/S160053680403034X ]

cis-Dicarbonyl(hydroxydi-2-pyridylmethanolato-³N,O,N')(triphenylphosphine-P)rhenium(I) dimethyl sulfoxide hemisolvate

M. Bakir and I. Hassan

Abstract: The title compound, [Re(C₁₁H₉N₂O₂)(C₁₈H₁₅P)(CO)₂]·0.5C₂H₆OS or cis-[Re(CO)₂(PPh₃)(dpkO,OH)]·0.5dmso (dpkO,OH is hydroxydi-2-pyridylmethanolate and dmso is dimethyl sulfoxide), obtained from a dmso solution of cis-[Re(CO)₂(PPh₃)(dpk)Cl] (dpk is di-2-pyridylmethanone), crystallizes in the monoclinic space group P2₁/c, with two independent cis-[Re(CO)₂(PPh₃)(dpkO,OH)] complexes and one dmso molecule in the asymmetric unit. These results confirm the facile hydrolysis of N,N-coordinated di-2-pyridyl methanone to form a hydroxytris(2-pyridyl) methanolato-³N,O,N' coordinated anion. The coordinated atoms are in a pseudo-octahedral geometry, with the major distortion from octahedral geometry being due to the constraints associated with the ³N,O,N' binding of the hydroxytris(2-pyridyl)methanolate anion. The methyl groups of the dmso molecule show orientational disorder and have an insignificant effect on the overall precision and geometry. The molecular packing shows stacks of molecular units interlocked via a network of classical intramolecular O-HO hydrogen bonds, which link the complexes into pairs, and non-classical intermolecular C-HO hydrogen bonds, which link the various stacks.

Online 27 November 2004

Copyright © International Union of Crystallography
IUCr Webmaster