ChemInform Abstract: Ultraviolet Resonance Raman Spectra of Ribosyl C(1′)-Deuterated Purine Nucleosides: Evidence of Vibrational Coupling Between Purine and Ribose Rings

Autor:	Issei Harada, Yoshinobu Takino, Hideo Takeuchi, Akira Toyama
Rok vydání:	2010
Předmět:	Purine Stereochemistry Resonance Guanosine General Medicine Adenosine chemistry.chemical_compound symbols.namesake chemistry Deuterium Ribose symbols medicine Raman spectroscopy Rotational–vibrational coupling medicine.drug
Zdroj:	ChemInform. 25
ISSN:	0931-7597 1420-1100
Popis:	Ultraviolet resonance Raman spectra of ribosyl C(1')-deuterated guanosine and adenosine were measured. Most in-plane vibrations of the purine rings in the 1420-1100-cm -1 region showed frequency upshifts upon C(1')-deuteration, while those in the 1100-700-cm -1 region showed downshifts. The purine ring vibrations above 1450 cm -1 were unaffected. The frequency shifts associated with the C(1')-deuteration are explained by assuming couplings of the purine vibrations with a ribose C(1')-H bending mode, which involves a hydrogen motion in the plane of N(9)-C(1')-H
Databáze:	OpenAIRE
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