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Titolo:
Band splitting in the TR spectra of Ca(II) and Mg(II)-5 '-GMP complexes and Cd(II) and Mg(II)-5 '-CMP complexes related to ordered arrangement of these nucleotides
Autore:
de la Fuente, M; Gavira-Vallejo, JM; Hernanz, A; Navarro, R;
Indirizzi:
UNED, Dept CC & TT Fisicoquim, Fac Ciencias Quim, Madrid 28040, Spain UNED Madrid Spain 28040 sicoquim, Fac Ciencias Quim, Madrid 28040, Spain
Titolo Testata:
JOURNAL OF MOLECULAR STRUCTURE
, volume: 565, anno: 2001,
pagine: 265 - 270
SICI:
0022-2860(20010530)565:<265:BSITTS>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
RAMAN-SPECTRA; FOURIER DECONVOLUTION; FERMI RESONANCE; LIQUID WATER; TEMPERATURE;
Keywords:
5 '-GMP; 5 '-CMP; FT-IR; C-13 NMR CP-MAS; transition dipole interactions;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: de la Fuente, M UNED, Dept CC & TT Fisicoquim, Fac Ciencias Quim, Senda Rey S-N, Madrid 28040, Spain UNED Senda Rey S-N Madrid Spain 28040 Madrid 28040, Spain
Citazione:
M. de la Fuente et al., "Band splitting in the TR spectra of Ca(II) and Mg(II)-5 '-GMP complexes and Cd(II) and Mg(II)-5 '-CMP complexes related to ordered arrangement of these nucleotides", J MOL STRUC, 565, 2001, pp. 265-270

Abstract

The IR spectra of 5 ' -GMP with Ca(II) and 5 ' -CMP with Cd(II) and Mg(II)complexes, in solid state, show splitting of bands related to carbonyl groups, whereas the IR spectra of 5 ' -GMP with MB(II) and 5 ' -CMP with Cd(II) complexes show splitting of bands related to phosphate groups. These splittings have not been observed in the spectra of other metal-nucleotide complexes or in the disodium salt spectra of both nucleotides. It is suggested that the carbonyl or phosphate groups in these samples are close to each other in an ordered arrangement. Thus, it gives rise to interaction between neighbouring electric transition dipoles and, therefore, to the observed band splittings. This is also supported by the C-13 NMR CP-MAS spectra of solid samples. (C) 2001 Elsevier Science B.V. All rights reserved.

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Documento generato il 09/07/20 alle ore 23:26:55