title: Dinuclear transition-metal terpyridine complexes with a dithienylcyclo- pentene bridge directed toward molecular electronic applications.
abstract: A series of dinuclear metal terpyridine (M-tpy; M = Ru, Os, Fe, and Co) complexes with a photochromic dithienylethene bridge were designed and synthesized through either a convergent or a divergent approach. The open forms of the complexes containing RuII and FeII centers were found to be inert to ultraviolet photoirradiation but could be cyclized electrochemically as revealed by a cyclic voltammetric study. On the contrary, the CoII complex underwent efficient photochemical but not electrochemical cyclization. The corresponding OsII complex was neither photochromic nor electrochromic.
authors.affiliation: Baker Laboratory, Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853-1301, USA.
authors.forename: Yu-Wu
authors.initials: YW
authors.lastname: Zhong
authors.forename: Neus
authors.initials: N
authors.lastname: Vila
authors.forename: Jay C
authors.initials: JC
authors.lastname: Henderson
authors.forename: Samuel
authors.initials: S
authors.lastname: Flores-Torres
authors.forename: Héctor D
authors.initials: HD
authors.lastname: Abruña