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A chloride-bridged chain polymer: synthesis and X-ray structure of [GdCl(mu-Cl)(2)(H2O)(2)CH3CN]



The title compound has been synthesised and its structure determined by X-ray diffraction. The structure comprises a single strand polymer, with five independent Gd units in the crystallographic asymmetric unit. Each gadolinium atom has eight-coordinate bicapped trigonal prismatic geometry, co-ordinated by one terminal chlorine atom, four bridging chlorine atoms, two water molecules and one acetonitrile. Linkage to neighbouring metal centres is by double halogen bridges. The mean co-ordination distances are: Gd-Cl 2.822 (bridging) and 2.676 Angstrom (terminal), Gd-O, 2.362 and Gd-N, 2.538 Angstrom. (C) 2003 Elsevier B.V. All rights reserved

Topics: QD
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