In this paper, the fluctuation of the bistability chemical reactions system is studied.The fluctuation is always very small except in the narrow region, where we find a remarkablepeak at the euual-probability point. T...In this paper, the fluctuation of the bistability chemical reactions system is studied.The fluctuation is always very small except in the narrow region, where we find a remarkablepeak at the euual-probability point. This behavior is easily understood by the approximation ofprobability distribution. It is revealed that the behavior at the equal-probability point, like thefirst-order transitions in equilibrium systems, possesses the feature of first-order-like transitions.展开更多
Excited radicals CN(A, B), CH(A), H(n=3,4,5) were produced in the energy transfer reaction of inetastable He(23S)、 Ar(3P0,2) atoms with C2H3CN molecule by using discharge-flowing afterglow technique. The emission spe...Excited radicals CN(A, B), CH(A), H(n=3,4,5) were produced in the energy transfer reaction of inetastable He(23S)、 Ar(3P0,2) atoms with C2H3CN molecule by using discharge-flowing afterglow technique. The emission spectra of products were analysed, the results showed that vibrational populations of CN (B, v) were irregular in He(23S)+C2H3CN reaction and the mechanism was that two energy levels of CN(B, v=0,14) were coupled by the other two of CN(A, v=10,30). The relative vibrational population of CN (A, B, v), except the energy level of CN (B, v=14),decreased with the increase quantum number v of vibration which was the statistical population. The nascent rotational temperature Tr of the product CH (A, v=0) was 2600K.The formation mechamism of excited products was suggested展开更多
The one-color resonant two -photon ionization technique is employed to study jetcooled van der Waals(vdW)complex 0-xylene.N2 through the S0-S1 transition Around the band The spectra obtained exhibit rich information a...The one-color resonant two -photon ionization technique is employed to study jetcooled van der Waals(vdW)complex 0-xylene.N2 through the S0-S1 transition Around the band The spectra obtained exhibit rich information about the complex intermolecular vdW vibrational modes.We have tentatively assgned all the observed Spectral features.The structure of the complex has been obtained by calculation of the minimum energy structure.展开更多
文摘In this paper, the fluctuation of the bistability chemical reactions system is studied.The fluctuation is always very small except in the narrow region, where we find a remarkablepeak at the euual-probability point. This behavior is easily understood by the approximation ofprobability distribution. It is revealed that the behavior at the equal-probability point, like thefirst-order transitions in equilibrium systems, possesses the feature of first-order-like transitions.
文摘Excited radicals CN(A, B), CH(A), H(n=3,4,5) were produced in the energy transfer reaction of inetastable He(23S)、 Ar(3P0,2) atoms with C2H3CN molecule by using discharge-flowing afterglow technique. The emission spectra of products were analysed, the results showed that vibrational populations of CN (B, v) were irregular in He(23S)+C2H3CN reaction and the mechanism was that two energy levels of CN(B, v=0,14) were coupled by the other two of CN(A, v=10,30). The relative vibrational population of CN (A, B, v), except the energy level of CN (B, v=14),decreased with the increase quantum number v of vibration which was the statistical population. The nascent rotational temperature Tr of the product CH (A, v=0) was 2600K.The formation mechamism of excited products was suggested
文摘The one-color resonant two -photon ionization technique is employed to study jetcooled van der Waals(vdW)complex 0-xylene.N2 through the S0-S1 transition Around the band The spectra obtained exhibit rich information about the complex intermolecular vdW vibrational modes.We have tentatively assgned all the observed Spectral features.The structure of the complex has been obtained by calculation of the minimum energy structure.
