Ultrafast excited-state dynamics in nucleic acids
CE Crespo-Hernández, B Cohen, PM Hare… - Chemical …, 2004 - ACS Publications
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 …
created in nucleic acids and their constituents by UV light. Interest in the UV photochemistry …
DNA excited-state dynamics: from single bases to the double helix
CT Middleton, K de La Harpe, C Su… - Annual review of …, 2009 - annualreviews.org
Ultraviolet light is strongly absorbed by DNA, producing excited electronic states that
sometimes initiate damaging photochemical reactions. Fully mapping the reactive and …
sometimes initiate damaging photochemical reactions. Fully mapping the reactive and …
Tracking excited state decay mechanisms of pyrimidine nucleosides in real time
DNA owes its remarkable photostability to its building blocks—the nucleosides—that
efficiently dissipate the energy acquired upon ultraviolet light absorption. The mechanism …
efficiently dissipate the energy acquired upon ultraviolet light absorption. The mechanism …
Formation of long-lived dark states during electronic relaxation of pyrimidine nucleobases studied using extreme ultraviolet time-resolved photoelectron spectroscopy
Y Miura, Y Yamamoto, S Karashima… - Journal of the …, 2023 - ACS Publications
Ultrafast electronic relaxation of nucleobases from 1ππ* states to the ground state (S0) is
considered essential for the photostability of DNA. However, transient absorption …
considered essential for the photostability of DNA. However, transient absorption …
Radiationless decay of excited states of uracil through conical intersections
S Matsika - The Journal of Physical Chemistry A, 2004 - ACS Publications
The electronically excited singlet states of uracil have been studied theoretically using ab
initio multireference configuration interaction methods focusing on the mechanism for …
initio multireference configuration interaction methods focusing on the mechanism for …
A doorway state leads to photostability or triplet photodamage in thymine DNA
WM Kwok, C Ma, DL Phillips - Journal of the American Chemical …, 2008 - ACS Publications
Ultraviolet irradiation of DNA produces electronic excited states that predominantly eliminate
the excitation energy by returning to the ground state (photostability) or following minor …
the excitation energy by returning to the ground state (photostability) or following minor …
Photoinduced nonadiabatic dynamics of pyrimidine nucleobases: on-the-fly surface-hopping study with semiempirical methods
Z Lan, E Fabiano, W Thiel - The Journal of Physical Chemistry B, 2009 - ACS Publications
The photoinduced relaxation dynamics of pyrimidine nucleobases (uracil, thymine, and
cytosine) was studied using the surface-hopping approach at the semiempirical OM2/MRCI …
cytosine) was studied using the surface-hopping approach at the semiempirical OM2/MRCI …
Femtosecond time-and wavelength-resolved fluorescence and absorption spectroscopic study of the excited states of adenosine and an adenine oligomer
WM Kwok, C Ma, DL Phillips - Journal of the American Chemical …, 2006 - ACS Publications
By employing broadband femtosecond Kerr-gated time-resolved fluorescence (KTRF) and
transient absorption (TA) techniques, we report the first (to our knowledge) femtosecond …
transient absorption (TA) techniques, we report the first (to our knowledge) femtosecond …
Photochemistry of nucleic acid bases and their thio-and aza-analogues in solution
M Pollum, L Martinez-Fernandez… - … in the Gas Phase and in …, 2015 - Springer
The steady-state and time-resolved photochemistry of the natural nucleic acid bases and
their sulfur-and nitrogen-substituted analogues in solution is reviewed. Emphasis is given to …
their sulfur-and nitrogen-substituted analogues in solution is reviewed. Emphasis is given to …
Solvent effect on the singlet excited-state lifetimes of nucleic acid bases: A computational study of 5-fluorouracil and uracil in acetonitrile and water
The first comprehensive quantum mechanical study of solvent effects on the behavior of the
two lowest energy excited states of uracil derivatives is presented. The absorption and …
two lowest energy excited states of uracil derivatives is presented. The absorption and …