Collisional quenching of CH(A,B) radicals by (CX~3)~2CO, CF~3CO~2X and CXCl~3 (X=H or D) molecules

Acta Chimica Sinica ›› 1994, Vol. 52 ›› Issue (2): 127-131. Previous Articles Next Articles

Original Articles

(CX~3)~2CO,CF~3COX和CXCl~3(X=H或D)对CH(A,B)自由基的猝灭

陈从香;冉琴;俞书勤;马兴孝

中国科学技术大学近代化学系

发布日期:1994-02-15

Collisional quenching of CH(A,B) radicals by (CX~3)~2CO, CF~3CO~2X and CXCl~3 (X=H or D) molecules

CHEN CONGXIANG;RAN QIN;YU SHUQIN;MA XINGXIAO

Published:1994-02-15

Abstract

The quenching rate constants of CH(A, B) radicals by CH3COCH3, CD3COCD3, CF3CO2H, CF3CO2D, CHCl3 and CDCl3 mols. were measured at 290 K by laser photodissocn.-fluorescence quenching technique. The discussion of isotopic effect of quencher on quenching rate constant is presented. It is found that the quenching cross sections by D substituted quencher is biger than that by H substituted one.

Key words: REACTION KINETICS, EXCITED STATE, FREE RADICAL, ISOTOPE EFFECT, MOLECULE COLLISIONS, QUENCHING

CLC Number:

O621.16
O647

Cite this article

CHEN CONGXIANG;RAN QIN;YU SHUQIN;MA XINGXIAO. Collisional quenching of CH(A,B) radicals by (CX~3)~2CO, CF~3CO~2X and CXCl~3 (X=H or D) molecules[J]. Acta Chimica Sinica, 1994, 52(2): 127-131.

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(CX~3)~2CO,CF~3COX和CXCl~3(X=H或D)对CH(A,B)自由基的猝灭

Collisional quenching of CH(A,B) radicals by (CX~3)~2CO, CF~3CO~2X and CXCl~3 (X=H or D) molecules

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