INOR 707 |
| A new Keggin polyoxometalate-based polymer, formulated as (pbpy)2SiMo12Cu2(pbpy)4O40 (1) (pbpy = 5-phenyl-2-(4-pyridinyl)pyridine) have been synthesized under hydrothermal conditions. Complex 1 is a one-dimensional polyoxometalate-based chain constructed from Keggin anions of [SiMo12O40]4- connected by dinuclear [Cu2O2(pbpy)4] groups. This complex crystallizes in the triclinic space group P-1, a = 12.621(3) Ǻ, b = 13.168(3) Ǻ, c = 17.467(4) Ǻ, á = 86.09(3)°, â =85.35(3)°, ã = 64.10(3) °. In the structure of 1, there is only one types of copper(II) coordination environment. The crystallographically unique copper atom Cu1 is four-coordinate, completed by two nitrogen atoms from two pbpy molecules and two oxygen atoms from two polyoxometalates anions, forming a planar rhombic Cu2O2 dimer with four pbpy ligands. Furthermore, these dimers link SiMo12O404- building blocks together to form 1D chainlike polymers(see Fig. 1). Fig. 1. View of the 1D hybrid chain in 1. The free pbpy molecules are omitted for clarity.
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Polyoxometalates and Related Clusters in Chemistry and Nanoscience
7:00 PM-10:00 PM, Tuesday, August 21, 2007 BCEC -- Exhibit Hall - B2, Poster
Division of Inorganic Chemistry |
