Structural and spectroscopic properties of N-benzenesulphonylglycine complexes with copper (II)

In this paper are reported structural and spectroscopic properties of (N-benzenesulphonylglycinato) triaquacopper (II) (complex I) and dipotassium bis (N-benzenesulphonylglycinato) cuprate (II) (complex II). The crystals of (I) are monoclinic, space group P21/c, Z=4, with α=12.736(4), b=10.292(3), c=10.402(3) Å, β=109.41(2)° while those of complex (II) are orthorhombic, space group Pbca, with a=23.333(8), b=10.508(4), c=16.989(5) Å. In both complexes the aminoacid molecules act as bidentate via carboxylic oxygen and the amide nitrogen atom; in (I) three water molecules complete the coordination to tetragonal pyramidal, while in (II) coordination is square planar, tetrahedrally distorted involving two ligand molecules. The structure (I) was refined to a final R index of 0.0596 and (II) to R=0.0466. © 1991 Plenum Publishing Corporation.