Ultrafast charge transfer dynamics in supramolecular Pt(II) donor-bridge-acceptor assemblies: The effect of vibronic coupling

Paul A. Scattergood, Milan Delor, Igor V. Sazanovich, Michael Towrie, Julia A. Weinstein

Research output: Contribution to journalArticle

6 Citations (Scopus)


Thanks to major advances in laser technologies, recent investigations of the ultrafast coupling of nuclear and electronic degrees of freedom (vibronic coupling) have revealed that such coupling plays a crucial role in a wide range of photoinduced reactions in condensed phase supramolecular systems. This paper investigates several new donor-bridge-acceptor charge-transfer molecular assemblies built on a trans-Pt(ii) acetylide core. We also investigate how targeted vibrational excitation with low-energy IR light post electronic excitation can perturb vibronic coupling and affect the efficiency of electron transfer (ET) in solution phase. We compare and contrast properties of a range of donor-bridge-acceptor Pt(ii) trans-acetylide assemblies, where IR excitation of bridge vibrations during UV-initiated charge separation in some cases alters the yields of light-induced product states. We show that branching to multiple product states from a transition state with appropriate energetics is the most rigid condition for the type of vibronic control we demonstrate in our study.

Original languageEnglish
Pages (from-to)69-86
Number of pages18
JournalFaraday Discussions
Publication statusPublished - 2015


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