Bis(1-carbamimidoyl-2-ethyl-isourea)copper(II) bis-(perchlorate)

Abstract

The title complex, [Cu(C4H10N4O) 2](ClO4)2 or [Cu(L 1e)2](ClO4)2, where L 1e is 1-carbamimidoyl-2-ethyl-isourea, was obtained from the ethano-lysis reaction of 2-cyano-guanidine and copper(II) perchlorate hexa-hydrate in a 2:1 molar ratio. The two bidentate L 1e ligands are coordinated to the CuII center through N-donor atoms, leading to the CuN4 chromophore. The CuII environment is slightly distorted square-planar, with a dihedral angle of 5.17 (6)° between the two six-membered chelate rings. One of the ClO4- anions is disordered over two positions in a 0.6:0.4 ratio.