Complexes of ligands derived from the condensation of 2-formyl- or 2-acetylpyridine with ethanolamine and the formation of two rearrangement products; X-ray crystal structures of Mn(L1)2(NCS)2, [Mn(L1)(NCS)2]x, [Cu(L1)(H2O)2(ClO4)]2(ClO4)2, [Zn(L1)(H2O)2(ClO4)]2(ClO4)2 and [Mn(L3)(L4)] 2(ClO4)4·2EtOH (L1 = N-(2-hydroxyethyl)-2-pyridinecarboxaldimine, L3 = N-(2-hydroxyethyl)-methyl-2-pyridylketimine, L4 = (Z)-1,3-di(2-pyridyl)but-2-enone)
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