Copper(II) and lead(II) complexes of 4,4′-bipyridine-N,N′-dioxide
Authors: Bourne, Susan; Moitsheki, Lesego
Source: Journal of Chemical Crystallography, Volume 37, Number 5, May 2007 , pp. 359-367(9)
Abstract:Cu(II) and Pb(II) complexes of 4,4′-bipyridine-N,N′-dioxide have been prepared using a solvent-layering system. [Cu2Cl4(bpdo)3(H2O)2] . 2(CH3)2SO (1) crystallises in P-1, a=8.731(2), b=8.943(2), c=14.408(3) Å, α=102.85(3), =97.49(3), =109.77(3)°. The Cu(II) complex is a z-shaped discrete molecule with a DMSO molecule hydrogen bonded to the host through coordinated water molecule. Crystallisation of PbCl2, PbBr2 and PbI2 with bpdo afforded isostructural 2D coordination polymers. [PbCl2(bpdo)]n is monoclinic, C2/c with a=16.3274(7), b=4.0708(1), c=18.6146(8) Å, =93.73(1)°; [PbBr2(bpdo)]n is monoclinic, C2/c with a=16.403(3), b=4.2412(8), c=18.846(4) Å, =92.59(3)° and [PbI2(bpdo)]n is monoclinic, C2/c with a=16.438(3), b=4.538(1), c=18.973(4) Å, =91.04(3)°. The adjacent metal centres of these polymers are bridged by coordinated Cl−, Br− or I− anions as well as by bpdo ligands. These polymers possess no conventional hydrogen bonds.
Document Type: Research Article
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Publication date: 2007-05-01