Related Experiment Video
Updated: Jun 24, 2026

Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization
Published on: August 6, 2018
Probing the geometry dependence of molecular dimers with two-dimensional-vibronic spectroscopy
Joachim Seibt1, Klaus Renziehausen, Dmitri V Voronine
1Institut für Physikalische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany.
Abstract:
Two-dimensional (2D) vibronic correlation spectra of molecular dimers are calculated, taking a single vibration in each monomer into account. Within the employed wave function approach, the coupling to a surrounding is included only phenomenologically. It is shown that this offers a straightforward understanding of the spectra. The influence of the relative orientation of the monomer transition dipole moments and the electronic coupling strength is investigated. Employing a model for perylene bisimide, we predict the 2D-vibronic spectra for the monomer and dimer configurations.
More Related Videos
Related Concept Videos
Molecular Geometry and Dipole Moments
UV–Vis Spectroscopy: Molecular Electronic Transitions
Molecular Spectroscopy: Absorption and Emission
IR Spectroscopy: Hooke's Law Approximation of Molecular Vibration
According to Hooke's law, the vibrational frequency is directly proportional to the...
Spin–Spin Coupling Constant: Overview
Qualitatively, any spin plus-half nucleus polarizes the spins of its electrons to the minus-half state. Consequently, the paired electron in the hydrogen–carbon bond must have a...
Two-Dimensional (2D) NMR: Overview
The first step is the preparation period, during which nucleus A is excited with a radiofrequency pulse.

