Synthesis and crystal structure of a complex bearing interesting structural motifs: [CU(C4H7N3) H2O (4,4 '-Hbpy)]center dot SO4 center dot NO3

A new complex [Cu (C4H7N3) H2O (4,4'-Hbpy)]. SO4. NO3 was synthesized and X -ray characterized. Elemental analysis, Xray diffraction and infrared spect roscopy of the complex were performed. The crystal system is orthorhombic. Crystal data: Fw = 498.98, spacegroup: P212121. Z = 4, a = 14.952(3), b = 2 0.491(4), c = 6.713 Angstrom. V = 2056.7(9) Angstrom. lambda (Mo-K alpha) = 0.71070 Angstrom. mu = 12.18 cm(-1), D-calc = 1.66 g/cm(3), F-000 = 1032.0 0, R = 0.062, Rw = 0.087. X-ray analysis illustrated that 4,4'-bpy is mono- protonated and that there are two kinds of anions in one molecule, which gi ve rise to the hydrogen interaction between the molecules in the crystal. T hen an extended three-dimensional network is formed along the hydrogen bond s and pi-pi bonds between the pyridine rings. (C) 2001 Elsevier Science B.V . All rights reserved.