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 …

An interesting and intriguing aspect of supercritical fluid solutions is their microscopic
inhomogeneities. The most well-known of these are the long-range densities fluctuations …

To better understand DNA photodamage, several nucleosides were studied by femtosecond
transient absorption spectroscopy. A 263-nm, 150-fs ultraviolet pump pulse excited each …

The DNA and RNA bases absorb ultraviolet (UV) light of wavelengths shorter than 300 nm
strongly, and are the dominant UV absorbers in many cells. 1 Not surprisingly, nature has …

The cooling of p-nitroaniline (PNA), dimethylamino-p-nitroaniline (DPNA) and trans-stilbene
(t-stilbene) in solution is studied experimentally and theoretically. Using the pump …

The ultrafast relaxation of p-nitroaniline (PNA) in water and acetonitrile is studied
experimentally and theoretically. Transient absorption spectra are measured by the pump …

In previous studies, acetone has been successfully applied as a tracer for planar laser-
induced fluorescence (PLIF) measurements of concentration and temperature. The desire to …

The photochemistry of para-and ortho-biphenylyl azides and 1-naphthyl azide was studied
by ultrafast spectroscopy. In every case, the singlet azide second excited states were …

▪ Abstract Modern ultrafast spectroscopic techniques provide new opportunities to study
chemical reaction dynamics in liquids and hold the possibility of obtaining much of the same …

The modified nucleic acid base, 1-cyclohexyluracil, was studied by femtosecond transient
absorption spectroscopy in protic and aprotic solvents of varying polarity. UV excitation at …