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Crystal structure of an oxalate-bridged tetranuclear 8-hydroxyquinoline Zn(II) cluster: [Zn4Q6(Ox)]0.5n

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Author(s): JIAJUN WANG | QIANG WANG | YANJUN SUN | YUEMEI WANG | GUOSHENG ZHAO | YUNCHENG CUI

Journal: Journal of the Serbian Chemical Society
ISSN 0352-5139

Volume: 76;
Issue: 4;
Start page: 529;
Date: 2011;
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Keywords: 8-hydroxyquinoline | zinc(II) cluster | single crystal structure

ABSTRACT
The chain structure of a tetranuclear zinc(II) cluster [Zn4Q6(Ox)]0.5n ([Zn4 (C9H6NO) 6(C2O4)]0.5n) (1) (Q = 8-hydroxyquinoline anion, Ox = oxalate dianion) was determined by X-ray crystallography and characterized by elemental analysis, IR spectroscopy and thermal analysis. It crystallizes in the monoclinic system, space group P21/n (No. 14), with the lattice parameters a = 13.2222(15) Å, b = 11.0566(12) Å, c = 16.2224(18) Å, β = 92.1770(10)°, V = 2369.9(5) Å3, Z = 4, Mr = 607.23 g mol-1, Dc = 1.702 g cm-3. The tetranuclear zinc(II) clusters form 1D polymeric chains parallel to the b-axis. The π–π stacking interactions involving aryl rings support the formation of the 1D polymeric structure. The neighboring polymeric chains are connected by C–H···π interactions.
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