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By Naser Eltaher Eltayeb, A Siang Guan Teoh and A Suchada


R factor = 0.050; wR factor = 0.138; data-to-parameter ratio = 18.6. The asymmetric unit of the title compound, tetraaquatetrakis{ 3-6,60-dioxido-2,20-[1,2-phenylenebis(nitrilomethyl idyne)]diphenolato}octazinc(II) dimethyl sulfoxide tetrasolvate dihydrate, [Zn8(C20H12N2O4)4(H2O)4] 4C2H6OS-2H2O, contains one quarter of a Zn II octanuclear complex with 4 symmetry, one dimethyl sulfoxide molecule and one half of a water molecule which lies on a twofold rotation axis. The Zn II atoms of the octanuclear complex have two different five-coordinate environments, viz. ZnN2O3and ZnO5. All eight Zn II centers adopt a distorted square-pyramidal coordination; four Zn II ions have the N2O2 tetradentate Schiff base ligand bound in a basal plane and the coordinated water molecule occupying the apical site, while the remaing four Zn II ions are bound by five O atoms from three Schiff base ligands. In the crystal structure, Zn II complex molecules, coordinated and uncoordinated water molecules and dimethyl sulfoxide molecules are linked via O—H OandC—HO hydrogen bonds and C—H interactions, forming a threedimensional framework. Experimental Crystal dat

Topics: Zn8(C20H12N2O4)4(H2O)4
Year: 2008
OAI identifier: oai:CiteSeerX.psu:
Provided by: CiteSeerX
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