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Novel Concentration-Driven Structural Interconversion in Shape-Specific Solids Supported by the Octahedral [Re63-Se)8]2+ Cluster Core

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posted on 2002-10-29, 00:00 authored by Hugh D. Selby, Peter Orto, Michael D. Carducci, Zhiping Zheng
A complex containing the face-capped octahedral [Re63-Se)8]2+ cluster core, cis-[Re63-Se)8(PPh3)4(4,4‘-dipyridyl)2](SbF6)2 (1), is used as a ditopic ligand with an enforced right angle between the two 4,4‘-dipyridyl moieties for the coordination of Cd2+ ion. Two coordination polymers, [{Re63-Se)8(PPh3)4(4,4‘-dipyridyl)2}2{Cd(NO3)2}](SbF6)4·21C4H10O·21CH2Cl2 (2) and [{Re63-Se)8(PPh3)4(4,4‘-dipyridyl)2}{Cd(NO3)3}](NO3)·2C4H10O·CH2Cl2 (3), are obtained. The relative concentration of Cd2+ determines which species is isolated, and the conversion of the first structure into the second is demonstrated experimentally.

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