Spin–vibronic coherence drives singlet–triplet conversion

SR Rather, NP Weingartz, S Kromer, FN Castellano… - Nature, 2023 - nature.com
Abstract Design-specific control over the transitions between excited electronic states with
different spin multiplicities is of the utmost importance in molecular and materials chemistry …

Vibrational and nonadiabatic coherence in 2D electronic spectroscopy, the Jahn–Teller effect, and energy transfer

DM Jonas - Annual review of physical chemistry, 2018 - annualreviews.org
Femtosecond two-dimensional (2D) Fourier transform spectroscopy generates and probes
several types of coherence that characterize the couplings between vibrational and …

[HTML][HTML] Electronic energy transfer through non-adiabatic vibrational-electronic resonance. I. Theory for a dimer

V Tiwari, WK Peters, DM Jonas - The Journal of Chemical Physics, 2017 - pubs.aip.org
Non-adiabatic vibrational-electronic resonance in the excited electronic states of natural
photosynthetic antennas drastically alters the adiabatic framework, in which electronic …

[HTML][HTML] Electronic energy transfer through non-adiabatic vibrational-electronic resonance. II. 1D spectra for a dimer

V Tiwari, DM Jonas - The Journal of Chemical Physics, 2018 - pubs.aip.org
Vibrational-electronic resonance in photosynthetic pigment-protein complexes invalidates
Förster's adiabatic framework for interpreting spectra and energy transfer, thus complicating …

Vibrations that do not promote vibronic coupling can dominate observed lineshapes in two-dimensional electronic spectroscopy

A Sahu, V Tiwari - The Journal of Physical Chemistry Letters, 2023 - ACS Publications
Impulsively generated wavepackets can report on vibronic couplings underlying ultrafast
electronic relaxation. Coherence maps (CMs) in multidimensional spectroscopy resolve …

Cd (II) enhanced fluorescence and Zn (II) quenched fluorescence with phenylenevinylene terpyridine: A theoretical investigation

Z Zhang, C Wang, Z Zhang, Y Luo, S Sun… - Spectrochimica Acta Part …, 2019 - Elsevier
Phenylenevinylene terpyridine (mepvpt) shows chelation enhanced fluorescence (CHEF)
with Cd (II) and chelation quenched fluorescence (CHQF) with Zn (II), respectively. To …

Vibronic resonance is inadequately described by one-particle basis sets

A Sahu, JS Kurian, V Tiwari - The Journal of Chemical Physics, 2020 - pubs.aip.org
Vibrational-electronic (vibronic) resonance and its possible role in energy and charge
transfer have been experimentally and theoretically investigated in several photosynthetic …

Low-and high-frequency vibrations synergistically enhance singlet exciton fission through robust vibronic resonances

A Bhattacharyya, A Sahu, S Patra… - Proceedings of the …, 2023 - National Acad Sciences
Singlet exciton fission (SEF) is initiated by ultrafast internal conversion of a singlet exciton
into a correlated triplet pair (TT) 1. The “reaction coordinates” for ultrafast SEF even in …

Vibronic resonance along effective modes mediates selective energy transfer in excitonically coupled aggregates

S Patra, V Tiwari - The Journal of Chemical Physics, 2022 - pubs.aip.org
We recently proposed effective normal modes for excitonically coupled aggregates that
exactly transform the energy transfer Hamiltonian into a sum of one-dimensional …

Effects of donor–acceptor quantum coherence and non-markovian bath on the distance dependence of resonance energy transfer

SJ Jang - The Journal of Physical Chemistry C, 2019 - ACS Publications
Accurate information on the distance dependence of resonance energy transfer (RET) is
crucial for its utilization as a spectroscopic ruler of nanometer scale distances. In this regard …