Experimental and DFT studies on the vibrational spectra of 1H-indene-2-boronic acid

被引:5
作者
Alver, Ozgur [1 ]
Kaya, Mehmet Fatih [1 ]
机构
[1] Anadolu Univ, Fac Sci, Dept Phys, Eskisehir, Turkey
关键词
1H-indene-2-boronic acid; Infrared and Raman spectra; Molecular structure; DFT; MOLECULAR-STRUCTURE; FT-RAMAN; NMR; IR; UV; INDENE; NBO;
D O I
10.1016/j.molstruc.2014.07.039
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
Stable conformers and geometrical molecular structures of 1H-indene-2-boronic acid (I-2B(OH)(2)) were studied experimentally and theoretically using FT-IR and FT-Raman spectroscopic methods. FT-IR and FT-Raman spectra were recorded in the region of 4000-400 cm(-1), and 3700-400 cm(-1), respectively. The optimized geometric structures were searched by Becke-3-Lee-Yang-Parr (B3LYP) hybrid density functional theory method with 6-31++G(d,p) basis set. Vibrational wavenumbers of I-2B(OH)(2) were calculated using B3LYP density functional methods including 6-31++G(d,p) basis set. Experimental and theoretical results show that density functional B3LYP method gives satisfactory results for predicting vibrational wavenumbers except OH stretching modes which is probably due to increasing unharmonicity in the high wave number region and possible intra and inter molecular interaction at OH edges. To support the assigned vibrational wavenumbers, the potential energy distribution (PED) values were also calculated using VEDA 4 (Vibrational Energy Distribution Analysis) program. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码:147 / 152
页数:6
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