A novel helical chain zinc(II) coordination polymer derived from both ferrocenecarboxylato and bibenzimidazolyl ligands: synthesis, crystal structure and properties

A novel zinc(II) coordination polymer {[Zn(FcCOO)2(bbbm)]·2H2O}n (Fc ¼ (h 5–C5H5)Fe(h 5–C5H4); bbbm ¼ 1,10-(1,4-butanediyl)- bis-1H-benzimidazole) was obtained by the reaction of Zn(OAc)2·2H2O with bbbm and FcCOONa in methanol solution. The molecule reveals an infinite one-dimensional (1D) helical chain [Zn(bbbm)]n with the ferrocenecarboxylate anion as monodentate coordinating to the Zn ion. Its thermal and electrochemical properties were also investigated. q 2004 Elsevier B.V. All rights reserved