Binuclear Metal Complexes. XXXVII. Crystal and Molecular Structure of a Binuclear Manganese(III) Complex Bridged by Two Alkoxo Oxygens and Two Bidentate Acetate Ions

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Abstract
The crystal structure of binuclear manganese(III) complex, Mn(spa)(ac) (H2spa=3-salicylideneamino-1-propanol, ac=acetate), was determined by the single-crystal X-ray diffraction method. The crystals are triclinic, space group P\bar1, a=8.804(3), b=9.376(3), c=8.671(3) Å, α=111.24(3), β=101.34(3), γ=65.00(3)°, and Z=1. The structure was solved by the heavy atom method and refined by the block-diagonal least-squares method to an R factor of 0.034. The crystal structure consists of discrete binuclear clusters, where the two manganese atoms are bridged by two alkoxo oxygens of the spa ligands and two bidentate acetate ions. The structural detail is in conformity with the magnetic and spectral properties previously reported.