Abstract
Reaction of the silver(I) complex Ag(Hdipic)(H 2dipic)·H 2O, where H 2dipic = 2,6-pyridinedicarboxylic acid, with gadolinium(III) nitrate in aqueous methanol gave the heterometallic complex Ag[Gd(dipic) 2(H 2O) 3]·3H 2O ( 1), which has been characterized by X-ray diffraction. Each gadolinium atom is nine-coordinate and has two tridentate dipic 2− ions and three water molecules bonded in a tricapped trigonal prismatic geometry. The silver atoms bind to the carboxylate groups of both dipic ligands forming polymeric Gd-carboxyl-Ag-carboxyl-Gd chains.
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