IN this decade, great attention has been paid to PCl（b<sub>1</sub>∑<sup>+</sup>） because of its potential importance in chemical laser. Coxon et al. studied the reaction of Ar（<sup>3&...IN this decade, great attention has been paid to PCl（b<sub>1</sub>∑<sup>+</sup>） because of its potential importance in chemical laser. Coxon et al. studied the reaction of Ar（<sup>3</sup>P<sub>o</sub>,2） with PCl<sub>3</sub> and observed two band systems of PCl（A<sub>3</sub>Ⅱ→X<sup>3</sup>∑<sup>-</sup>） and （b<sup>1</sup>∑<sup>+</sup>→X<sup>3</sup>∑<sup>-</sup>）. Beielefeld et al. and Setser et al. measured the radiative lifetime of PCl（b<sup>1</sup>∑<sup>+</sup>） and its quenching rate constants for some small molecule quenchers. Recently, we have prepared a clean source of PCl（b,υ′= O） in展开更多
Using the reaction of Ar(3Po,2) + PCl3 as a source of PCl(b1 +), we have measured the quenching rate constants of PCl(b,v'=0) for more than 20 quenchers. The E-V model is used to calculate the rate constants. The ...Using the reaction of Ar(3Po,2) + PCl3 as a source of PCl(b1 +), we have measured the quenching rate constants of PCl(b,v'=0) for more than 20 quenchers. The E-V model is used to calculate the rate constants. The comparison of the calculated values with the experimental ones shows that the quenching of PCl(b) by the reagent molecules results from the electronic to vi-brational energy near resonance transfer and has been related to the Franck-Condon factors for the PCl(b,v'=0-a,v'=m) transition and to the anharmonicities of the terminal bonds of the quenchers. In addition, the influence of the polarizability of the reagent molecule on the quenching rate constant is discussed.展开更多
文摘IN this decade, great attention has been paid to PCl（b<sub>1</sub>∑<sup>+</sup>） because of its potential importance in chemical laser. Coxon et al. studied the reaction of Ar（<sup>3</sup>P<sub>o</sub>,2） with PCl<sub>3</sub> and observed two band systems of PCl（A<sub>3</sub>Ⅱ→X<sup>3</sup>∑<sup>-</sup>） and （b<sup>1</sup>∑<sup>+</sup>→X<sup>3</sup>∑<sup>-</sup>）. Beielefeld et al. and Setser et al. measured the radiative lifetime of PCl（b<sup>1</sup>∑<sup>+</sup>） and its quenching rate constants for some small molecule quenchers. Recently, we have prepared a clean source of PCl（b,υ′= O） in
基金Project supported by the National Natural Science Foundation of China and by the Cross-Century Talent Foundation of Shandong University.
文摘Using the reaction of Ar(3Po,2) + PCl3 as a source of PCl(b1 +), we have measured the quenching rate constants of PCl(b,v'=0) for more than 20 quenchers. The E-V model is used to calculate the rate constants. The comparison of the calculated values with the experimental ones shows that the quenching of PCl(b) by the reagent molecules results from the electronic to vi-brational energy near resonance transfer and has been related to the Franck-Condon factors for the PCl(b,v'=0-a,v'=m) transition and to the anharmonicities of the terminal bonds of the quenchers. In addition, the influence of the polarizability of the reagent molecule on the quenching rate constant is discussed.
