The scope of this review is the nature and dynamics of the singlet excited electronic states
created in nucleic acids and their constituents by UV light. Interest in the UV photochemistry …

Ultrafast processes in light-absorbing proteins have been implicated in the primary step in
the light-to-energy conversion and the initialization of photoresponsive biological functions …

Photodissociation induced by the absorption of single photons permits the detailed study of
molecular dynamics such as the breaking of bonds, internal energy transfer and …

1. General Aspects 2. Normal-Mode Taylor Expansion 3. A Model of Nonadiabatic
Photoisomerization III. Time-Dependent Methodology A. Representation of the State Vector …

In this chapter, the authors discuss their recent development of the ab initio multiple
spawning (AIMS) method which solves the elecronic and nuclear Schrödinger equations …

During the past decade the perception of conical intersections has changed. It is now
appreciated that what was once viewed largely as a theoretical curiosity is an essential …

Diabatic states have a long history in chemistry, beginning with early valence bond pictures
of molecular bonding and extending through the construction of model potential energy …

A unified description of chemical reactivity is made possible with valence bond (VB)
diagrams, such as those shown for the a simple case (only reactants and products must be …

An overview is presented of methods for time-dependent treatments of molecules as
systems of electrons and nuclei. The theoretical details of these methods are reviewed and …

Photoinduced electron transfer (ET) is a cornerstone of energy transduction from light to
chemistry. The past decade has seen tremendous advances in the possible role of quantum …