CRYSTAL-STRUCTURE AND SPECTROSCOPIC PROPERTIES OF THE MONOAQUOBIS (N-THIOCYANATE) (2,2'-DIPYRIDYLAMINE) COPPER(II) COMPLEX

The monoaquobis (N-thiocyanate)(2,2'-dipyridylamine)copper(II) complex has been synthesized and characterized. Its crystal structure has bee n resolved at room temperature. The complex crystallizes in the monocl inic space group P2(1)/n, with a = 10.688(1) Angstrom, b = 11.104(2) A ngstrom, c = 12.982(2) Angstrom beta = 102.63(1)degrees and Z = 4. The structure consists of discrete molecules in which the copper(II) ion is pentacoordinated with a distorted square pyramidal geometry. The ES R and diffuse reflectance spectra are in good agreement with the struc tural results. The covalence factor has been calculated from the ESR a nd reflectance measurements (K = 0.79).