Temperature And Pressure Effect On The Fermi Resonance Of Complex Of Pyridine And Water

Fermi resonance is an intramolecular or intermolecular resonance onenergy level. In terms of the important applications of the research, itis not only related to physics, such as molecular structures, phasechanges and properties, as well as mutual coupling of electronic states,but also closely linked to authentication and attribution of the spectrallines in the chemistry, materials, biology and other disciplines. Besides,it is also widely used in inclusions in geology, research andmanufacturing of optics, and the efficacy of anti-cancer drugs, etc. Withthe depth of the research on Fermi resonance, more and more people attachgreat importance to it, which in turn promote the research and make morepeople realize the rich theories and application potential in this field.However, at home and abroad, there are only a few researches on Fermiresonance under high pressure and the ones with the consideration oftemperature change are fewer. So there are many practical applicationsof the Fermi resonance need to be probed.Fermi resonance is quite keen to the changes of molecular ambient.For example, Minor changes in pressure, temperature.....will influenceit. This paper concentrated on the effect of temperature and pressurechanges on Fermi resonance of pyridine and water complex. Studies are asfollows:In the theory part, it introduced meanings and methods of the researchon Fermi resonance. Furthermore, it introduced molecular vibrationalspectroscopy, the tool for the research. Besides, it mainly interpretedprinciples and features of the IR spectra and the scattering theory, the classical interpretation, as well as the quantum interpretation of Ramanspectroscopy. In addition, it gave out several spectroscopies for Fermiresonance research, which made good bedding for the followingexperiments.The experiment part of this article by changing the temperature andpressure, pure pyridine is obtained under different temperature andpressure, Raman spectra of pyridine and water complex, As can be seen fromthe spectrum, pure of pyridine, pyridine and water complexv1~v12obviouschanges have taken place in the Fermi resonance, and further analysis ofpyridine and water complex along with the change laws of temperature andpressure.In the end, the chapter reached the conclusion that when the volumeof pyridine and water according to1:1match into a mixed solution, dueto the formation of hydrogen bond in the solution, led to the way ofcombining pyridine molecules and water molecules (Py, PyW, PyW2，PyW3，Py2W) change, which affect the intensity of Raman spectra R than Fermiresonance coupling coefficient W, which further illustrate the change ofpressure and temperature, it is bound to influence of pyridine and watercomplex of Fermi resonance.This paper does research mainly varies with temperature and pressureare discussed, along with the change of temperature and pressure ofpyridine and water complex of Fermi resonance overall macro trends, forexactly the combination way is how to influence on micro Fermi resonancealso lacks certain research, remains to be further in-depth analysis.