Abstract
The Mn(PPO)nX2 complexes (where PPO is 2,5-diphenyloxazole, n = 1, 2 or 3 and X = Cl−, Br−, I− or SCN−) have been prepared from the corresponding metal salt with the ligand in methanolic solution or with the molten ligand in the appropriate reactant ratio and studied by chemical analysis, electronic and i.r. spectroscopy, magnetic and molar conductivity values at 25°. The complexes are generally nonconducting in DMF; they are high spin and hexacoordinated. The Mn(PPO)X2 complexes are high polymers with both ligand and anions bridging. The Mn(PPO)2X2 species are polymeric with PPO monodentate N-bonded and halogens and thiocyanates bridging bonded; the Mn(PPO)3X2 derivatives have monodentate N-bonded ligands whereas the halogens and thiocyanates are terminal and bridging, respectively.
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