Journal
INORGANIC CHEMISTRY COMMUNICATIONS
Volume 9, Issue 1, Pages 107-110Publisher
ELSEVIER
DOI: 10.1016/j.inoche.2005.09.012
Keywords
tetranuclear silver(I) cluster; imidazole-4,5-dicarboxylic acid; triphenylphosphine; 2-pyrrolidone-5-carboxylic acid
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A novel tetranuclear silver(I) cluster, [Ag-2(Himdc)(PPh3)(2)](2) 1 (H(3)imdc = imidazole-4,5-dicarboxylic acid; O<^>N) was obtained by a reaction of the Ag-O bonding precursor [Ag(R-Hpyrrld)](2) (H(2)pyrrld = 2-pyrrolidone-5-carboxylic acid), PPh3 and H(3)mide. The mononuclear complex, [Ag(H(2)imdc)(PPh3)(2)](2), was also formed by the reactions using increased amounts of PPh3.In the solid state, complex I was a bivalve-like Ag-4 cluster, while complex 2 showed a supramolecular arrangement of the 4-coordinate AgP2(N<^>O) unit via the intermolecular hydrogen bonding interaction. (c) 2005 Elsevier B.V. All rights reserved.
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