The Structure of Novel Binuclear μ-Phenolato-Bridged Copper（Ⅱ） Complexes

By means of EXAFS and FIR, the structure of two novel binuclear μ-phenolato -bridged copper（II） complexes, Fsal（GG）₂Cu₂Cl₃·H₂O and Fsal（GG）₂Cu₂（OH） （ClO₄）₂·H₂O, was characterized, where Fsal（GG）₂ stands for 2, 6-bis （glycylglycine） iminomethylene -4-methyl-Phenol. The EXAFS data have been fitted to a dimeric structural model with noise correction, and from the fit, the coordination numbers of copper（II） and atomic distances of Cu-O, Cu-N, Cu-Cl and Cu-Cu have been obtained. FIR spectra suggest a trigonal bipyramidal environment of copper（II） in the chloro-bridged complex and a compressed tetrahedral environment for the hydroxo-bridged one.