Influence of pressure effect on Fermi resonance in binary solution

蒋秀兰,; Guang, Yang; 李东飞,; 周密,; 孙成林,; 高淑琴,; 里佐威,

doi:10.1088/1674-1056/19/10/103301

Chinese Phys. B

2010

DOI: 10.1088/1674-1056/19/10/103301

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Influence of pressure effect on Fermi resonance in binary solution

蒋秀兰蒋秀兰

Yang Guang

李东飞李东飞

et al.

Abstract: Jiang Xiu-Lan(蒋秀兰) a)b) , Yang Guang(杨光) a)c) , Li Dong-Fei(李东飞) c) , Zhou Mi(周密) a) , Sun Cheng-Lin(孙成林) c) , Gao Shu-Qin(高淑琴) a)c) , and Li Zuo-Wei(里佐威) a)c) †

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Pressure effect on the Fermi resonance doublets of ν1 ∼ ν12 and ν1+ν6 ∼ ν8 in pyridine

Jiang¹,

Zhou²,

Li³

et al. 2011

Journal of Applied Physics

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Raman spectra of pure pyridine, pyridine aqueous solution, and pyridine in methanol under high pressure were measured separately. Behaviors of two Fermi doublets, v1 and v12, v1+v6 and v8, occurred simultaneously in one pyridine molecule are analyzed according to their spectra, which indicates that the v1 Raman activity decreased with increasing pressure and disappeared eventually, which induced weakness and even disappearance of the Fermi resonance between v1 and v12, while the v1 Raman intensity variation had no effect on the presence of the Fermi resonance between v1+v6 and v8 as well as its variation law with increasing pressure. Those phenomena were interpreted by group theory in this article. It also indicates experimentally that all Raman bands of pyridine appeared blueshift with increasing pressure except that OH group appeared redshift. Moreover, frequency v1 shifted more quickly with increasing pressure than their counterparts did in neat liquid, so did its Raman intensity variation.

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Pressure effect on the Fermi resonance doublets of ν1 ∼ ν12 and ν1+ν6 ∼ ν8 in pyridine

Jiang¹,

Zhou²,

Li³

et al. 2011

Journal of Applied Physics

View full text Add to dashboard Cite

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The effect of an anti-hydrogen bond on Fermi resonance: A Raman spectroscopic study of the Fermi doublet ν₁−ν₁₂of liquid pyridine

Li¹,

Shu-Qin²,

Sun³

et al. 2012

Chinese Phys. B

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The effects of an anti-hydrogen bond on the ν1−ν12 Fermi resonance (FR) of pyridine are experimentally investigated by using Raman scattering spectroscopy. Three systems, pyridine/water, pyridine/formamide, and pyridine/carbon tetrachloride, provide varying degrees of strength for the diluent-pyridine anti-hydrogen bond complex. Water forms a stronger anti-hydrogen bond with pyridine than with formamide, and in the case of adding non-polar solvent carbon tetrachloride, which is neither a hydrogen bond donor nor an acceptor and incapable of forming a hydrogen bond with pyridine, the intermolecular distance of pyridine will increase and the interaction of pyridine molecules will reduce. The dilution studies are performed on the three systems. Comparing with the values of the Fermi coupling coefficient W of the ring breathing mode ν1 and triangle mode ν12 of pyridine at different volume concentrations, which are calculated according to the Bertran equations, in three systems, we find that the solution with the strongest anti-hydrogen bond, water, shows the fastest change in the ν1−ν12 Fermi coupling coefficient W with the volume concentration varying, followed by the formamide and carbon tetrachloride solutions. These results suggest that the stronger anti-hydrogen bond-forming effect will cause a greater reduction in the strength of the ν1−ν12 FR of pyridine. According to the mechanism of the formation of an anti-hydrogen bond in the complexes and the FR theory, a qualitative explanation for the anti-hydrogen bond effect in reducing the strength of the ν1−ν12 FR of pyridine is given.

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Influence of pressure effect on Fermi resonance in binary solution

Abstract: Jiang Xiu-Lan(蒋秀兰) a)b) , Yang Guang(杨光) a)c) , Li Dong-Fei(李东飞) c) , Zhou Mi(周密) a) , Sun Cheng-Lin(孙成林) c) , Gao Shu-Qin(高淑琴) a)c) , and Li Zuo-Wei(里佐威) a)c) †

Cited by 2 publications

References 20 publications

Pressure effect on the Fermi resonance doublets of ν1 ∼ ν12 and ν1+ν6 ∼ ν8 in pyridine

Pressure effect on the Fermi resonance doublets of ν1 ∼ ν12 and ν1+ν6 ∼ ν8 in pyridine

The effect of an anti-hydrogen bond on Fermi resonance: A Raman spectroscopic study of the Fermi doublet ν₁−ν₁₂of liquid pyridine

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Influence of pressure effect on Fermi resonance in binary solution

Abstract: Jiang Xiu-Lan(蒋秀兰) a)b) , Yang Guang(杨 光) a)c) , Li Dong-Fei(李东飞) c) , Zhou Mi(周 密) a) , Sun Cheng-Lin(孙成林) c) , Gao Shu-Qin(高淑琴) a)c) , and Li Zuo-Wei(里佐威) a)c) †

Cited by 2 publications

References 20 publications

Pressure effect on the Fermi resonance doublets of ν1 ∼ ν12 and ν1+ν6 ∼ ν8 in pyridine

Pressure effect on the Fermi resonance doublets of ν1 ∼ ν12 and ν1+ν6 ∼ ν8 in pyridine

The effect of an anti-hydrogen bond on Fermi resonance: A Raman spectroscopic study of the Fermi doublet ν1−ν12of liquid pyridine

Contact Info

Product

Resources

About

Abstract: Jiang Xiu-Lan(蒋秀兰) a)b) , Yang Guang(杨光) a)c) , Li Dong-Fei(李东飞) c) , Zhou Mi(周密) a) , Sun Cheng-Lin(孙成林) c) , Gao Shu-Qin(高淑琴) a)c) , and Li Zuo-Wei(里佐威) a)c) †

The effect of an anti-hydrogen bond on Fermi resonance: A Raman spectroscopic study of the Fermi doublet ν₁−ν₁₂of liquid pyridine