Ultraviolet resonance Raman studies of trans and cis peptides: photochemical consequences of the twisted .pi.* excited state

1991 ◽  
Vol 113 (4) ◽  
pp. 1155-1163 ◽  
Author(s):  
Sunho Song ◽  
Sanford A. Asher ◽  
Samuel Krimm ◽  
Keith D. Shaw
Keyword(s):  
Excited State ◽  
Resonance Raman ◽  
Ultraviolet Resonance Raman ◽  
Cis Peptides

Initial excited-state structural dynamics of 2′-deoxyadenosine

2019 ◽  
Vol 97 (6) ◽  
pp. 406-412 ◽  
Author(s):  
Swaroop Sasidharanpillai ◽  
Adam A. Friedman ◽  
Glen R. Loppnow
Keyword(s):  
Excited State ◽  
Electronic State ◽  
Structural Dynamics ◽  
Excited Electronic State ◽  
Resonance Raman ◽  
Photochemical Reactions ◽  
Spontaneous Breaking ◽  
Quantum Yields ◽  
Dna And Rna ◽  
Ultraviolet Resonance Raman

Purine nucleobases (adenosine and guanosine) are prone to spontaneous breaking of the nucleosidic bond to form abasic sites in both DNA and RNA. However, the purines also undergo photochemical reactions, including oxidation and cycloaddition, to form damage sites, albeit at lower photochemical quantum yields than the pyrimidines. In this study, we use ultraviolet resonance Raman spectroscopy to measure the initial excited-state structural dynamics in the nucleoside, 2′-deoxyadenosine. The resonance Raman-derived initial excited-state structural dynamics throughout the 260 nm La excited electronic state of adenine are found to be smaller in the nucleoside than in the previously reported 9-methyladenine nucleobase derivative, consistent with what is found for the pyrimidines thymine and uracil. Interestingly, resonance-enhanced vibrational modes in this electronic state also contain internal coordinates localized on the sugar, which may represent a different energy dissipation mechanism than in the pyrimidine nucleosides. The results will be discussed in terms of the initial excited-state photophysics and photochemistry of DNA and RNA.

scholarly journals Ultraviolet resonance Raman spectroscopy of anthracene: Experiment and theory

2021 ◽  
Author(s):  
Tim Holtum ◽  
Julien Bloino ◽  
Christos Pappas ◽  
Vikas Kumar ◽  
Vincenzo Barone ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Resonance Raman Spectroscopy ◽  
Resonance Raman ◽  
Ultraviolet Resonance Raman Spectroscopy ◽  
Ultraviolet Resonance Raman

Neurotransmitter measurement with a fiber optic probe using pulsed ultraviolet resonance Raman spectroscopy

1997 ◽  
Author(s):  
H. Georg Schulze ◽  
L. Shane Greek ◽  
Michael W. Blades ◽  
Alan V. Bree ◽  
Boris B. Gorzalka ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Fiber Optic ◽  
Resonance Raman Spectroscopy ◽  
Resonance Raman ◽  
Fiber Optic Probe ◽  
Ultraviolet Resonance Raman Spectroscopy ◽  
Ultraviolet Resonance Raman ◽  
Optic Probe

New Method for the Microscopic, Nondestructive Acquisition of Ultraviolet Resonance Raman Spectra from Plant Cell Walls

2006 ◽  
Vol 60 (4) ◽  
pp. 352-355 ◽  
Author(s):  
Andrew D. Czaja ◽  
Anatoliy B. Kudryavtsev ◽  
J. William Schopf
Keyword(s):  
Raman Spectra ◽  
Plant Cell ◽  
Cell Walls ◽  
Resonance Raman ◽  
New Method ◽  
Plant Cell Walls ◽  
Resonance Raman Spectra ◽  
Ultraviolet Resonance Raman
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