Inorganic Chemistry, Vol.34, No.26, 6423-6424, 1995
Synthesis and Characterization of a Water-Soluble Metallopeptide That Resembles a Parallel Beta-Pleated Sheet
The title metallopeptide consists of two divalinyl peptides attached to the carboxylate groups of the ruthenium polypyridyl complex. [Ru(bpy)(2)L](2+) : bpy = 2,2’-bipyridine; L = 3,5-dicarboxy-2,2’-bipyridine. The charged ruthenium complex is water soluble and is shown by variable temperature, and 2-D NMR to consist a parallel arrangement of interacting, extended peptide strands that ir reminiscent of the beta-sheet structure. Circular dichroism results support this assignment.