Tris-(thiocyanato)-bis-(hexamethylenetetramine)-nona-(aquo)lanthanum(III):synthesis, crystal structure, IR and Raman characterization

The title compound (LaC15H42N11O9S3) was prepared and characterized by mean s of X-ray, IR and Raman measurements. The crystals are orthorhombic: Pnma (No. 62), a = 21.117(2), b = 14.736(2), c = 10.082(1) Angstrom, and Z = 4. The structure consists of polyhedra with a La(III) ion in the center of the m and hexamethylene molecules, which link these polyhedra. Each La(III) ion coordinates seven molecules of water and two thiocyanate ions via nitrogen atoms. The IR and Raman spectra, which have been obtained and interpreted, are in good agreement with X-ray results.