Two-dimensional Raman correlation analysis of benzophenone

被引：4

作者：

Sett, Pinaky ^{[1
]}

Chowdhury, Joydeep ^{[2
]}

Mallick, Prabal Kumar ^{[3
]}

机构：

[1] Gobardanga Hindu Coll, Dept Phys, Gobardanga 743273, W Bengal, India

[2] Sammilani Mahavidyalaya, Dept Phys, Kolkata 700075, India

[3] Univ Burdwan, Dept Phys, Burdwan 713104, W Bengal, India

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2009年 / 929卷 / 1-3期

关键词：

Benzophenone; Vibrational spectroscopy; Quantum chemical calculation; Raman excitation profile; Two-dimensional correlation analysis; PRINCIPAL COMPONENT ANALYSIS; CORRELATION SPECTROSCOPY; 2D CORRELATION; EXCITATION PROFILE; AQUEOUS-SOLUTIONS; DERIVATIVES; MOLECULE; SPECTRA;

D O I：

10.1016/j.molstruc.2009.04.034

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：

Effect of varying excitation wavelength on the Raman spectral intensity of benzophenone molecule has been examined. The overlapped bands are resolved using two-dimensional correlation method. The symmetric and asymmetric pair associated with a particular type of vibration is highly asynchronously correlated. Evidently no corresponding cross peaks are present in the synchronous spectra. This finding indicates that the succession of change of amplitude of symmetric and asymmetric vibrations related with that specific mode is not simultaneous but completely chronological. Interaction of C=O group with the surroundings may be responsible for the appearance of a relatively lower wavenumber peak correspond to new type of C=O stretching vibration. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：200 / 206

页数：7

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