A series of metal cluster-based complexes was constructed from the reaction of metal ions (Fe III , Cu II , Zn II ) and ligand (2-({2-[2-carbosybenzoy])oxy]-ethoxy}carbonyal)benzoic acid) (H 2 L) in CH 3 CH 2 OH, CH 3 OH, (C 2 H 5 ) 3 N and IntroductionNovel coordination polyhedrons have received much attention due to their great potential applications[1], such as catalysis[2], magnetism[3], luminescence[4] and gas storage[5]. One promising approach for the construction of coordination polyhedrons is based on the self-assembly of cluster-based complex composed of polynuclear cluster as secondary building unit (SBU) and bridging organic linkers[6]. Usually, linear dicarboxylic acids as linkers may be used to assembly transition-metal ions into polynuclear clusters through a network of bridges[7]. The modification on