The Study of Vibrational Spectra of 3-Amino-2, 5-Dichlorobenzoic Acid by Density Functional Theory
文献类型：期刊论文
| 作者 | Yang Shui-jiao1; Gao Ai-hua1; Hu Shang-bin1; He Xiao-qing1; Jiang Zhen-yi2; Chu San-yang3 |
| 刊名 | SPECTROSCOPY AND SPECTRAL ANALYSIS
 |
| 出版日期 | 2011-07-01 |
| 卷号 | 31页码:1804-1808 |
| 关键词 | 3-amino-2,5-dichlorobenzoic acid Vibrational frequencies Density functional theory |
| ISSN号 | 1000-0593 |
| DOI | 10.3964/j.issn.1000-0593(2011)07-1804-05 |
| 英文摘要 | To understand the relationship between the vibrational spectra and the geometry structure of 3-amino-2, 5-dichlorobenzoic acid (3A2, 5DBA) essentially, geometry optimizations and vibrational frequencies calculation of 3A2, 5DBA were performed at Hartree-Fock (HF) and Becke's three-parameter hybrid functional (B3) for the exchange part and the Lee-Yang-Parr (LYP) correlation function (B3LYP) level using 6-311G(d, p) basis set, respectively. The structural information and 45-complete normal vibrational modes of 3A2, 5DBA were obtained. Comparing the computational geometric parameters of 3A2, 5DBA with the values observed in experimental measurement of benzoic acid as well as the computed vibrational frequencies of 3A2, 5DBA with the reported data of pertinent literature, it was revealed that the results coming from B3LYP/6-311G(d, p) are more reasonable than those by HF/6-311G(d, p). Taking into account the difference between the computed 3A2, 5DBA molecule and the experimental measured sample, the calculated vibrational frequencies were reasonably scaled. Under the B3LYP/6-311G(d, p) method, the scale factor was 1. 001 3 for the vibrational frequencies with wave numbers<800 cm(-1), while the scale factor was 0. 961 3 for the vibrational frequencies with wave numbers>800 cm(-1). With the help of Gaussian View software package, the theoretically calculated vibrational frequencies were assigned much more accurately. In addition, the vibrational analysis of substitutive groups and main functional groups of 3A2, 5DBA was carried out. Through the comparison of the calculated vibrational frequencies with the frequencies of 3A2, 5DBA observed in FTIR experiment, the authors found that the theoretically calculated vibrational frequencies scaled reasonably were in excellent agreement with the data coming from experimental measurements. Meanwhile, according to the related literature reports, it was shown that our work done in the paper about vibrational assignments and vibrational analysis of 3A2, 5DBA turned out to be reasonable. |
| WOS关键词 | BROMOBENZENE DERIVATIVES ; CHLOROBENZENE |
| WOS研究方向 | Spectroscopy |
| 语种 | 英语 |
| WOS记录号 | WOS:000292575600017 |
| 出版者 | OFFICE SPECTROSCOPY & SPECTRAL ANALYSIS |
| 源URL | [http://119.78.100.186/handle/113462/34469]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Gao Ai-hua |
| 作者单位 | 1.NW Univ Xian, Dept Phys, Xian 710069, Peoples R China 2.NW Univ Xian, Inst Modern Phys, Xian 710069, Peoples R China 3.Tsinghua Univ, Dept Chem, Hsinchu 30013, Taiwan |
| 推荐引用方式 GB/T 7714 | Yang Shui-jiao,Gao Ai-hua,Hu Shang-bin,et al. The Study of Vibrational Spectra of 3-Amino-2, 5-Dichlorobenzoic Acid by Density Functional Theory[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2011,31:1804-1808. |
| APA | Yang Shui-jiao,Gao Ai-hua,Hu Shang-bin,He Xiao-qing,Jiang Zhen-yi,&Chu San-yang.(2011).The Study of Vibrational Spectra of 3-Amino-2, 5-Dichlorobenzoic Acid by Density Functional Theory.SPECTROSCOPY AND SPECTRAL ANALYSIS,31,1804-1808. |
| MLA | Yang Shui-jiao,et al."The Study of Vibrational Spectra of 3-Amino-2, 5-Dichlorobenzoic Acid by Density Functional Theory".SPECTROSCOPY AND SPECTRAL ANALYSIS 31(2011):1804-1808. |
入库方式： OAI收割
来源：近代物理研究所
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