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Updated: Jun 20, 2026

Accessing Valuable Ligand Supports for Transition Metals: A Modified, Intermediate Scale Preparation of 1,2,3,4,5-Pentamethylcyclopentadiene
Published on: March 20, 2017
Transition-metal tris-bipyridines containing three dithienylcyclopentenes: synthesis, photochromic, and
Yu-Wu Zhong1, Neus Vilà, Jay C Henderson
1Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, USA.
Abstract:
Designed prototype molecules for making a three-terminal single-molecule device, star-shaped Fe(II), Co(II), and Ru(II) tris-bipyridine complexes containing three dithienylcyclopentenes, have been synthesized and characterized. All complexes displayed reversible photochromic behavior when irradiated with UV or visible light. The open form of these complexes could be cyclized electrochemically as revealed by cyclic voltammetric studies and bulk electrolysis experiments.
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