Synthesis and crystal structure of a novel zinc(II) coordination polymer with mixed ferrocenyl diketone and bipyridine ligands

A novel zinc(II) coordination polymer [Zn(fca)(2)(bpe)](n).2nH(2)O (bpe = 1,2-bis(4-pyridyl)ethene, fca = C5H5FeC5H4C(OH)= CHCOCH3) was obtained by the reaction of Zn(OAc)(2).2H(2)O with bpe and 1-ferrocenylbutane-1,3-dione (ferrocenoylacetone, Hfea) in methanol solution. X-ray structural analysis reveals that the compound contains two kinds of ligands: one is the 1,2-bis(4-pyridyl)ethene ligand, directly bridging zinc(H) centers to form a one-dimensional chain [Zn(bpe)](n), the other is the enolized ferrocenylacetone chelating the central ion. The zinc(II) ion is in an elongated octahedral environment with four oxygen atoms from two distinct enolized ferrocenoylacetone, two nitrogen atoms of the bridging 1,2-bis(4-pyridyl)ethene ligands. (C) 2002 Elsevier Science B.V. All rights reserved.