Near-IR electrochromism in electropolymerized films of a biscyclometalated ruthenium complex bridged by 1,2,4,5-Tetra(2-pyridyl)benzene

Chang Jiang Yao, Yu Wu Zhong*, Hai Jing Nie, Héctor D. Abrun, Jiannian Yao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

154 Citations (Scopus)

Abstract

Reductive electropolymerization of the biscyclometalated ruthenium complex [(vtpy)Ru(tpb)Ru(vtpy)] 2+ [vtpy = 4′-vinyl-2,2′:6′, 2″-terpyridine; tpb = 1,2,4,5-tetra(2-pyridyl)benzene] proceeded smoothly on electrode surfaces. Thanks to the strong electron coupling between the ruthenium centers of the individual monomeric units and strong intervalence charge-transfer absorption in the mixed valence state, the produced adherent metallopolymeric films exhibited near-IR electrochromism with tricolor switching, good contrast ratio (40% at 1165 nm), short response time, low-switching voltage, and long memory time.

Original languageEnglish
Pages (from-to)20720-20723
Number of pages4
JournalJournal of the American Chemical Society
Volume133
Issue number51
DOIs
Publication statusPublished - 28 Dec 2011
Externally publishedYes

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