Synthesis, properties, and crystal and molecular structure of N,N-bis(2-hydroxyethyl)glycinato copper(II) perchlorate monohydrate

Abstract

The synthesis and X-ray diffraction study of the title copper(II) complex have been carried out. The crystal is monoclinic with the space group P2 1/n, Z = 4, a = 12.646(2), b = 9.369(1), c = 10.619(2) Å, β = 108.69(1)°. Full matrix least-squares refinements have led to a final R value of 0.052 for 2996 reflections. The ligand coordinates to the copper atom so as to form three five-membered chelate rings. The copper atom is in a trigonal-bipyramidal geometry, ligated by a nitrogen atom, a carboxylato oxygen atom, two hydroxyl oxygen atoms and a carboxylato oxygen atom of the neighboring unit. The complex forms a one-dimensional polymer chain through the carboxylato group and is charged positively. The perchlorate ion does not coordinate to the copper atom and is located within a bundle of the polymer chains of the complex. Some properties of the complex are discussed.