Substituent effect in O-H•••Se hydrogen bond-Density Functional Theory study of para-substituted phenol-SeH2 complexes

被引:10
|
作者
Schamnad, Sanjeed [1 ]
Chakraborty, Shamik [1 ]
机构
[1] Birla Inst Technol & Sci, Dept Chem, Pilani 333031, Rajasthan, India
关键词
SPECTROSCOPY; RESONANCE; CLUSTERS;
D O I
10.1016/j.cplett.2015.01.012
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Complexes between para-substituted phenol and SeH2 are characterized in the electronic ground state by B3LYP, B3PW91, and wB97xD levels of calculations using 6-311++G(3df,3pd) basis set. Various substituents (-NH2, -OH, -CH3, -F, -Cl, -CN, and -NO2) are used to investigate the electronic substituent effect on intermolecular O-H center dot center dot center dot Se hydrogen bond. Electron withdrawing para-substituent increases hydrogen bond interaction energy and red shift in O-H stretching frequency. Stabilization energy of O-H center dot center dot center dot Y hydrogen bond are similar in complexes of phenol with YH2 (Y= S and Se), whereas it is almost twice when Y= O. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:28 / 33
页数:6
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