Novel chains constructed from heterotrinuclear units and 1,2-bis(4-pyridyl)ethane formulated as [M2M '(O2CPh)(6)](bpa) (M = Co, Zn, M ' = Co, Cd): Their catalytic activity

Three novel heterometallic complexes containing two bridging ligands bpa and benzoate, formulated as [M2M'(O2CC6H5](n)(bpa)(n) (bpa = 1,2-bis(4-pyridyl)ethane, M2M' = Zn2CO (1), Zn2Cd (2), and Co2Cd (3)), have been synthesized. All three compounds show one-dimensional structures containing linear heteronuclear coordination units linked by bridging bpa ligands. Reactivity study of the compounds 1-3 for the transesterification of a variety of esters has shown that they are very efficient and 2 is the best among them. (C) 2009 Elsevier B.V. All rights reserved.