THE CRYSTAL-STRUCTURE AND IR-SPECTRA OF ZIDO-N1)(METHANOL)(BIPYRIMIDINE-N1,N1')COPPER(II)] BIS(TRIFLATE) BIS(METHANOL)

The structure of the title compound [Cu-2(bipym)(3)(N-3)(2)(CH3OH)(2)] (CF3SO3)(2)(CH3OH)(2) has been determined by X-ray diffraction. The c rystals are triclinic, space group P1, with a = 8.1844(5), b = 11.0253 (6), c = 12.9089(7) Angstrom, alpha = 80.249(4), beta, = 74.933(5), ga mma = 74.001(4)degrees, and Z = 1. The structure consists of a dinucle ar Cu(II) unit formed of two didentate bipym ligands, one bis-didentat e bipym ligand, two azido anions, and two coordinating methanol molecu les, The Cu(II) atom is elongated tetragonally surrounded by two nitro gens of the didentate bipym ligand, one nitrogen of the bis-didentate ligand, and one nitrogen of the azido anion forming the equatorial pla ne with one nitrogen of the bis-didentate ligand and an oxygen atom of the methanol molecule as the axial atoms. A noncoordinating triflate anion and an additional methanol molecule are also in the crystal latt ice and have a hydrogen bond distance of 2.801(3) Angstrom with an ang le of 157(4)degrees. The cations link by O-H ... N bonds into infinite chains running in the c-direction.