Predicting the NMR spectra of nucleotides by DFT calculations: cyclic uridine monophosphate

被引:17
作者
Bagno, Alessandro [1 ]
Rastrelli, Federico [1 ]
Saielli, Giacomo [2 ]
机构
[1] Univ Padua, Dipartimento Sci Chim, I-35131 Padua, Italy
[2] CNR, Ist Tecnol Membrane, Sez Padova, I-35131 Padua, Italy
关键词
NMR; H-1; C-13; P-31; nucleotides; density functional calculations;
D O I
10.1002/mrc.2204
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We present an experimental and quantum chemical NMR study of the mononucleotide cyclic uridine monophosphate in water. Spectral parameters (H-1 and C-13 chemical shifts and H-1-H-1, C-13-H-1, P-31-C-13 and P-31-H-1 spin-spin coupling constants) have been carefully obtained experimentally and calculated using DFT methods including the solvent effect and the conformational flexibility of the solute. This study confirms that the H-1 and C-13 spectra of polar, flexible molecules in aqueous solution can be predicted with a high level of accuracy, comparable to that obtained for less complex systems. Copyright (C) 2008 John Wiley & Sons, Ltd.
引用
收藏
页码:518 / 524
页数:7
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