Synthesis and properties of the elusive ruthenium(II) complexes of 4'-cyano-2,2':6',2' '-terpyridine |
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Authors: | Wang Jianhua Fang Yuan-Qing Hanan Garry S Loiseau Frédérique Campagna Sebastiano |
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Institution: | Département de Chimie, Université de Montréal, Montréal, Québec, Canada. |
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Abstract: | The heteroleptic and homoleptic ruthenium(II) complexes of 4'-cyano-2,2':6',2' '-terpyridine are synthesized by palladium catalyzed cyanation of the corresponding Ru(II) complexes of 4'-chloro-2,2':6',2' '-terpyridine. The introduction of the strongly electron-withdrawing cyano group into the Ru(tpy)(2)(2+) moiety dramatically changes its photophysical and redox properties as well as prolongs its room temperature excited-state lifetime. |
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