Date Published: May 01, 2010
Publisher: International Union of Crystallography
Author(s): A. Vanitha, J. Muthukumaran, R. Krishna, Bala Manimaran.
In the title complex, [Re2(C6H5Te)2(C11H9N)(CO)7], two Re atoms are coordinated in slightly distorted octahedral coordination environments and are bridged by two Te atoms, which are coordinated in trigonal-pyramidal environments. The torsion angle for the Te—Re—Te—Re sequence of atoms is 17.06 (3)°. The crystal structure is stabilized by weak C—H⋯O and C—H⋯π interactions. In addition, there are Te⋯Te distances [4.0392 (12) Å] and O⋯O distances [2.902 (19) Å] which are shorter than the sum of the van der Waals radii for these atoms. A short intermolecular lone pair⋯π distance [C O⋯Cg = 3.31 (2) Å] is also observed.
For the biological applications of Re and Te compounds, see: Begum et al. (2008 ▶); Atwood et al. (1983 ▶); Zhang & Leong (2000 ▶); Lima et al. (2009 ▶); Cunha et al. (2009 ▶); Kopf-Maier & Klapötke (1992 ▶). For a related structure, see Cecconi et al. (1998 ▶). For an example of a structure with weak Te⋯Te contacts, see: Ritch & Chivers (2009 ▶). For details of electron lone pair interactions, see: Jain et al. (2009 ▶).