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The reaction of 1,3-bis(pyridyl-4-ylthio)propan-2-one with Cu(ClO4)2 · 6H2O gave a new complex {[Cu2(4PDS)2(ox)(H2O)4](ClO4)2}n (4PDS = 4,4'-dipyridyldisulfide, ox = oxalate), with 4PDS and ox being created by the Cu(II)-assisted oxidation of 1,3-bis(pyridyl-4-ylthio)propan-2-one. The complex determined by X-ray crystallography is a 1D polymer, in which metallacycles formed by two 4PDS and two Cu(II) ions are further bridged through ox anions. It crystallizes in the orthorhombic system, space group Fddd, with lattice parameters a = 15.106(2), b = 23.667(4), c = 27.637(3) Å and Z = 8. [ABSTRACT FROM AUTHOR]

Abstract: Three CdII coordination polymers, {[Cd(py)2(dpa)](H2O)} n (1), {[Cd2(4,4′-bipy)2(dpa)2](H2O)} n (2) and {[Cd(bpe)(dpa)](H2O)} n (3) (py=pyridine; H2dpa= diphenic acid; 4,4′-bipy=4,4′-bipyridine; bpe=1,2-bis(4-pyridyl)ethane) were synthesized and characterized by X-ray crystal structure determination. In 1, two syn, anti-carboxylate groups in dpa bridge CdII forming a one-dimensional chain consisting of repeated eight-membered (–Cd–O–C–O–) rings, two pyridine nitrogen atoms occupy the axial positions of six-coordinated CdII. Two-dimensional layer complexes 2 and 3 can be regarded as an extension of 1 through μ-4,4′-bipy and μ-bpe replacing terminal pyridine, respectively. [Copyright &y& Elsevier]

In the paper the complexes of metal cobalt(III), manganese(III), iron(III) and copper(II) with Schiff-base N,N-ethylenebis(salicylideneaminnato) have been synthesized and characterized. The nanosized porous material MCM-41 has been functionalized by the modification of the internal pore surface with gamma-aminopropyl and was assembled by the modification groups with metal complex of Schiff-base. These metal complexes and functionalized nanosized porous materials were charcterized by XRD, IR and UV-Vis. It is indicated by spectral analysis that the synthesized nanosized porous materials have been confirmed to be MCM-41 with hexagon bores, and the gamma-aminopropyls have been bonded on their internal pore surface. And the complexes of metal cobalt(III), manganese(III), iron(III) and copper(II) with Schiff-base N,N-ethylenebis(salicylideneaminnato) were assembled into MCM-41. The IR spectra of these samples show that there were characteristic absorptions of the amino and the Schiff base groups, and the absorption of amino shifted to longer wavelength.