Spin-forbidden transitions have demonstrated to be of great importance in the spectroscopic
studies. This work presents a new look at the spin-forbidden a 4 Σ u+→ X 2 Σ g+ transitions …

The highly labile complexes between phosphaethyne (HCP) and hydrogen chloride (HCl)
with 1: 1 and 1: 2 stoichiometries have been generated in Ar and N2 matrices at 10 K …

Dicarbon species are of particular interest within the physical chemistry community.
However, contrary to neutral C 2, the theory of electronic structure and spectra concerning C …

When using quantum chemical methods to study electronically excited states of open-shell
molecules, it is often beneficial to start with wave functions that are spin eigenfunctions. For …

In this chapter, the basic concepts regarding molecular photophysics are introduced. First,
the interaction of light and matter is explained, including the time-dependent perturbation …

Formation of the excited doublet (D) and quartet (Q) states of free radicals under their
photoexcitation is discussed. The relative positions of the D and Q states are compared to …

Infrared and electronic spectroscopy of small organo phosphorus molecules in rare gas
matrices Page 1 Infrared and electronic spectroscopy of small organo phosphorus molecules in …