Hydrogen bonding represents one of the fundamental types of chemical bonding and
underlies the structure of a large variety of molecular systems, among them liquids …

Intramolecular vibrational energy transfer is a process central to many physical and
chemical phenomena in molecules. Here, various theories describing the process are …

A pedagogical overview of intramolecular vibrational redistribution (IVR) phenomena in
vibrationally excited molecules is presented. In the interest of focus and simplicity, the topics …

▪ Abstract Femtosecond time-resolved photoelectron imaging (TRPEI) is a variant of time-
resolved photoelectron spectroscopy used in the study of gas-phase photoinduced …

Understanding intramolecular energy flow in molecules is one of the central goals of
chemical physics. Statistical theories [such as Rice-Ramsperger-Kassel-MarCus (RRKM) …

▪ Abstract Femtosecond time-resolved photoelectron spectroscopy is emerging as a useful
technique for investigating excited state dynamics in isolated polyatomic molecules. The …

One of the goals of researchers in the field of reaction dynamics is to develop an
understanding of the elementary steps involved in a chemical reaction on a molecular level …

Radiationless transitions comprise an important class of physical phenomena occurring in
the excited states of molecules. They affect the lifetimes of the ex cited states and govern …

Fast intersystem crossing is observed in the S11nπ* state of N-heterocyclic aromatic
hydrocarbons and carbonyl compounds. It is attributed to spin− orbit coupling with the 3ππ …

Photoinduced biological processes occur via one-photon absorption in natural light, which is
weak, continuous wave, and incoherent, but are often studied in the laboratory using pulsed …