Abstract
{Cu4Br5[(η 5-C5H4PPh2)(η 5-C5H5)Co]4}[PF6]3, [(η 5-C5H4PPh2)(η 5-C5H5)Co]+ = ((η 5-cyclopentadienyl)[η 5-1-(diphenylphosphino) cyclopentadienyl] cobaltocenium) and {Ag(NO3)(CH3COCH3)[(η 5-C5H4PPh2)(η 5-C5H5)Co]} n [PF6] n have been synthesized and characterized by elemental analyses, infrared spectroscopy, X-ray diffraction techniques, and by cyclic voltammetry. {Cu4Br5[(η 5-C5H4PPh2)(η 5-C5H5)Co]4}[PF6]3 contains four coplanar copper atoms bridged by four μ-Br and one central μ 4-Br occupying the apex of a square pyramid, and {Ag(NO3)(CH3COCH3)[(η 5-C5H4PPh2)(η 5-C5H5)Co]} n [PF6] n affording a 1-D coordination zigzag polymer.
Acknowledgements
The authors acknowledge financial support from the National Natural Science Foundation of China (No. 20572029, 20772039), the Science Foundation of Ministry of Education for the New Teacher at the University of China (No. 20070511006) and the Natural Science Foundation of Hubei Province (No. 2008CDB023).