Hydrogen bonding effect on the structure and vibrational spectra of complementary pairs of nucleic acid bases. I. Adenine-uracil

被引:9
|
作者
Ten, G. N. [1 ]
Nechaev, V. V. [1 ]
Pankratov, A. N. [1 ]
Baranov, V. I. [2 ]
机构
[1] NG Chernyshevskii Saratov State Univ, Saratov, Russia
[2] Russian Acad Sci, VI Vernadsky Inst Geochem & Analyt Chem, Moscow 117901, Russia
关键词
adenine; uracil; complementary pair; vibrational spectra; hydrogen bonding; interpretation; EXPERIMENTAL-MATRIX-ISOLATION; INFRARED-SPECTRA; AB-INITIO; MOLECULAR-STRUCTURE; COMPLEXES; THYMINE; PURINE; 2-CHLOROADENINE; CONSTITUENTS; TAUTOMERISM;
D O I
10.1007/s10947-010-0067-2
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Vibrational spectra of the adenine-uracil complementary pair of nucleic acid bases (NAB) in the isolated state are calculated in the B3LYP/6-311++G(d,p) approximation and analyzed. The hydrogen bonding effect on frequency positions and intensities of normal vibrations of NAB pairs is shown in comparison with isolated uracil and adenine molecules.
引用
收藏
页码:453 / 462
页数:10
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