Dinuclear transition-metal terpyridine complexes with a dithienylcyclo- pentene bridge directed toward molecular electronic applications |
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Authors: | Zhong Yu-Wu Vila Neus Henderson Jay C Flores-Torres Samuel Abruña Héctor D |
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Institution: | Baker Laboratory, Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853-1301, USA. |
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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. |
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