Temperature-dependent Raman and infrared spectra of nucleosides. II?Cytidine

Autor:	Scott Lee, A. Anderson, J.F. Li, W. Smith, R. H. Griffey, V. Mohan
Rok vydání:	2001
Předmět:	Hydrogen bond Chemistry Analytical chemistry Infrared spectroscopy Cytidine Atmospheric temperature range symbols.namesake chemistry.chemical_compound Deoxyribose Molecular vibration symbols General Materials Science Raman spectroscopy Spectroscopy Raman scattering
Zdroj:	Journal of Raman Spectroscopy. 32:795-802
ISSN:	1097-4555 0377-0486
DOI:	10.1002/jrs.749
Popis:	Raman and infrared spectra were recorded for crystalline deoxycytidine samples at 300, 200, 100 and 10 K. Data were taken over the spectral range 20–4000 cm−1. The wavenumbers of most vibrational modes were found to increase as the temperature was lowered. A number of peaks split into multiplets at low temperature. A new mode, observed at 375 cm−1, is a marker band for 2′-deoxyribose in cytosine-containing nucleic acids. Evidence is presented supporting the assignment of marker bands associated with the C3′-endo and C2′-endo puckers of deoxyribose. No clear indication was found of any structural phase transitions in this temperature range. Several hydrogen-stretching modes were found to involve hydrogen bonding. Plausible assignments of all the main features observed are suggested. Copyright © 2003 John Wiley & Sons, Ltd.
Databáze:	OpenAIRE
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