Study of Fermi Resonance by Means of Solution Concentration Variation
JIANG Xiu-lan1,2, LI Dong-fei3, CHEN Yuan-zheng3, ZHOU Mi3, SUN Cheng-lin2, YANG Guang3, LI Zuo-wei2,3*， GAO Shu-qin3
1. School of Science, Qingdao Technological University, Qingdao 266033, China 2. State Key Laboratory of Superhard Materials, Jilin University, Changchun 130021, China 3. College of Physics, Jilin University, Changchun 130021, China
Abstract：The values of Raman scattering coefficients of some molecules in which Fermi resonance occurs vary with solution concentration variation. We measured the Raman spectra of some solvents such as CCl4, CS2, C6H6, etc by changing the concentration of the solutions ranging from 10% to 100% in volume. As a result, the authors obtained the general law of Fermi resonance. We found some weak Fermi resonance phenomena as well that the two bands of Raman spectrum shift asymmetrically and that the fundamental of overtone is tuned by Fermi resonance and moves towards the same direction with the overtone simultaneously, which is same as the results Bier K. D. obtained by means of high-pressure technique. By means of this method, the authors demonstrated the conclusion that only the fundamental in combinations which has the same symmetry as the fundamental involved in Fermi resonance directly can its intensity variation influence the Fermi resonance. In this article, the authors present a new method to study Fermi resonance. This method is valuable in the identification and the assignment of spectral lines of solutions, the determination of molecular configuration of enzyme, the discrimination of isomer, as well as the influences on the molecular structures and properties caused by hydrogen bond.
[1] Rodriguez-Garcia V, Hirata S, Yagi K, et al., J. Chem. Phys., 2007, 126(12): 124303(1~6). [2] George L Barnes, Edwin L Sibert. J. Mol. Spectros., 2008, 249: 78. [3] John A Stride, Paul H Dallin, Upali A Jayasooriya. J. Chem. Phys., 2003, 119: 2747. [4] José F Bertrán, Boris L Serna Torres, Denis F Félix, et al. J. Raman Spectrosc., 1988, 19: 33. [5] José F Bertrán, Boris L Serna. J. Raman Spectrosc., 1989, 20: 419. [6] Bolduan F, Hochheimer H D, Jodl H J. J. Chem. Phys., 1986, 84: 6997. [7] Ballester L, Carrio C, Bertran J Fernandez. Spectrochimica Acta A, 1972, 28(11): 2103. [8] Wolff H, Hagedorn W J. Phys. Chem., 1980, 84(18): 2335. [9] Nolasco M M, Amado A M, Ribeiro-Claro P J A, J. Raman Spectrosc., 2008, 39(4): 396. [10] Hildebrandt P G, Copeland R A, Spiro T G, et al. Biochemistry, 1988, 27(15): 5426. [11] Siamwiza M N, Lord R C, CHEN M C, et al. Biochemistry, 1975, 14(22): 4870. [12] Burikov S A, Dolenko T A, Fadeev V V. Reseach Letters in Optics, 2008, 2008: 1. [13] Bertran J F, Ballester L, Dobrihalova L, et al. Spectrochim. Acta A 1968, 24: 1765. [14] Fini G, Mirone P, Patella P J. Mol. Spectros., 1968, 28: 144. [15] Yin Jianhua, Gao Shuqin, Li Zuowei, et al. J. Raman Spectrosc., 2004, 35: 1042. [16] Tian Yanjie, Zhang Liuyang, Zuo Jian, et al. Analyti. Chim. Acta, 2007, 581: 154. [17] Bier K D, Jodl H J. J. Chem. Phys., 1987, 86(8): 4406. [18] Meister A G, Meister A G, Cleveland F F, et al. J. Am. J. Phys., 1943, 11(5): 239. [19] Mirone P. Spectrochim. Acta A, 1966, 22: 1897. [20] Li Dong-fei, Jiang Xiu-lan, Cao Biao，et al. J. Raman Spectrosc., 2010, 41: 776.
