Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/17906
Title: | Spontaneous self-association of adenine and uracil in polycrystals from low temperature FTIR spectra in the range below 1000 cm−1 | Authors: | Rozenberg, M. Shoham, G. Reva, I. Fausto, R. |
Issue Date: | Nov-2005 | Publisher: | Elsevier B.V. | Serial title, monograph or event: | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | Volume: | 62 | Abstract: | FTIR spectra of solid samples of co-crystallized adenine and uracil were measured at 10 K in the range below 1000 cm−1. New bands ascribable to the N3H (uracil) and NH2 (adenine) out of plane vibrations, which disappear upon D-exchange, were revealed in comparison with the spectra of pure polycrystalline adenine and uracil obtained in the same conditions. The observed changes relate to the same groups that establish the H-bonds in base pairs of naturally occurring nucleic acids, despite the presence of an extra proton donor NH-group in both molecules. The well-established empirical correlation between the out of plane NH vibrational frequencies and H-bond energies was successfully applied for estimation of the latter in the mixed crystal. | URI: | https://hdl.handle.net/10316/17906 | DOI: | 10.1016/j.saa.2004.12.037 | Rights: | openAccess |
Appears in Collections: | FCTUC Química - Artigos em Revistas Internacionais |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Spectrochimica Acta A, 62 (2005) 233.pdf | 243.4 kB | Adobe PDF | View/Open |
SCOPUSTM
Citations
11
checked on Oct 7, 2024
WEB OF SCIENCETM
Citations
10
10
checked on Oct 2, 2024
Page view(s) 50
533
checked on Oct 15, 2024
Download(s)
343
checked on Oct 15, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.