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Complexation of Pyrene in Aqueous Solution with a Self-Assembled Palladium Metallocycle

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posted on 02.04.2010, 00:00 by Carlos Peinador, Elena Pía, Víctor Blanco, Marcos D. García, José M. Quintela
A bidentate ligand based on N-monoaryl 4,4′-bipyridinium undergoes self-assembly to dinuclear rectangular metallocycles upon coordination to palladium(II) and platinum(II) centers. These metallocycles form a very stable complex with pyrene in aqueous solution and in the solid state. A crystal structure of the pyrene inclusion complex is presented. The association constants between pyrene and metallocycle 3a in organic solvents and water (Ka = 2.3 × 106) were determined.