Abstract
Three new coordination polymers [Co(bimb)2(NCS)2] n (1), {[Co(bimb)2(dca)2] · CH3CN} n (2) and [Cu(bimb)2(NO3)2] n (3) (bimb = 1,4-bis(imidazol-1-yl)butane, dca = dicyanamide) were synthesized and characterized. In 1, each Co(II) links two Co(II)'s by double bimb ligands and extends to form a one-dimensional chain containing the Co2(bimb)2 22-membered metallocycle. 2 and 3 are two-dimensional (4, 4) networks linked by bimb bridges. The conformations of the bimb ligands in 1, 2 and 3 are analyzed.
Acknowledgements
This work was supported by the Natural Science Foundation of China (No. 20671066), the Jiangsu Province (No. BK2006049) and the Funds of State Key Laboratory of Coordination Chemistry.