Vibrational coherence transfer in an electronically decoupled molecular dyad

Scientific Reports
Felix SchweighöferJ Wachtveitl

Abstract

The ring opening of a dithienylethene photoswitch incorporated in a bridged boron-dipyrromethene - dithienylethene molecular dyad was investigated with ultrafast spectroscopy. Coherent vibrations in the electronic ground state of the boron-dipyrromethene are triggered after selective photoexcitation of the closed dithienylethene indicating vibrational coupling although the two moieties are electronically isolated. A distribution of short-lived modes and a long-lived mode at 143 cm(-1) are observed. Analysis of the theoretical frequency spectrum indicates two modes at 97 cm(-1) and 147 cm(-1) which strongly modulate the electronic transition energy. Both modes exhibit a characteristic displacement of the bridge suggesting that the mechanical momentum of the initial geometry change after photoexcitation of the dithienylethene is transduced to the boron-dipyrromethene. The relaxation to the dithienylethene electronic ground state is accompanied by significant heat dissipation into the surrounding medium. In the investigated dyad, the boron-dipyrromethene acts as probe for the ultrafast photophysical processes in the dithienylethene.

References

Sep 15, 1988·Physical Review A: General Physics·A D Becke
Jul 18, 2001·Journal of the American Chemical Society·H MiyasakaM Irie
Sep 24, 2004·Journal of the American Chemical Society·Yukako AsanoShinichiro Nakamura
Jan 13, 2009·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Lars DworakJosef Wachtveitl
May 28, 2010·Physical Chemistry Chemical Physics : PCCP·Giovanni CirmiGuglielmo Lanzani
Jul 16, 2010·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Benjamin Pritchard, Jochen Autschbach
Apr 29, 2011·Journal of the American Chemical Society·Munetaka IwamuraTahei Tahara
Sep 12, 2012·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Lars DworakJosef Wachtveitl
Nov 8, 2012·Chemistry : a European Journal·Jérémie LéonardStefan Haacke
Mar 21, 2013·Nature Communications·Carlo Andrea RozziChristoph Lienau
Jun 5, 2014·Physical Chemistry Chemical Physics : PCCP·P TrojanowskiJ Wachtveitl

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Citations

Oct 27, 2016·The Review of Scientific Instruments·Moussa GueyeJérémie Léonard
Jan 21, 2017·Physical Chemistry Chemical Physics : PCCP·F SchweighöferJ Wachtveitl
May 9, 2015·Physical Chemistry Chemical Physics : PCCP·C SlavovM Braun
Jun 28, 2016·Scientific Reports·Felix SchweighöferJosef Wachtveitl
Jul 14, 2020·Physical Chemistry Chemical Physics : PCCP·Giulia Dall'OstoStefano Corni
Jan 24, 2018·Nature Communications·Moussa GueyeJérémie Léonard

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