Synthesis, crystal structure and EPR of a hydrogen bonded two-dimensional network of Cu(II) complex with N-(2-hydroxybenzyl)-2-amino-1-ethanol

Hsalea (N-(2-hydroxybenzyl)-2-amino-1-ethanol) and its Cu(II) complexes, Cu(salea)(2) (1) and CuH-1(salea).1.5H(2)O (2), were prepared and characterized. X-ray structural analyses of 1 show that two amino N and two deprotonated phenoxy O atoms of the two ligands coordinate equatorially to Cu(II). Two alcoholic O atoms coordinate weakly at axial positions. Each molecule utilizes two alcoholic H atoms and two phenoxy O atoms to form hydrogen bonds with four surrounding molecules, leading to a two-dimensional network structure. EPR and electronic spectra of 1 are consistent with the elongated octahedral coordination polyhedron. (C) 2000 Elsevier Science B.V. All rights reserved.