First measurement of the BO B 2Σ+ radiative lifetime by laser-induced fluorescence via the B 2R+-X 2Σ+ transition

被引：1
|
作者：
White, Jason D. [1 ]
Marschall, Jochen [1 ]
Copeland, Richard A. [1 ]
机构：
[1] SRI Int, Mol Phys Lab, Menlo Pk, CA 94025 USA
来源：
CHEMICAL PHYSICS LETTERS | 2013年 / 577卷
关键词：
ELECTRONIC STATES; BORON PARTICLES; COMBUSTION; IGNITION; KINETICS; MONOXIDE; ALO; SPECTRUM; SYSTEMS;
D O I：
10.1016/j.cplett.2013.05.028
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Observation of the temporal evolution of the fluorescence following laser excitation of boron monoxide molecules to the B (2)Sigma(+) state is used to extract the radiative lifetime and collisional removal rate constant with N-2 as the colliding partner. The two lowest vibrational levels in the (BO)-B-11 B (2)Sigma(+) state are examined. The radiative lifetimes are 101 +/- 8 ns for v' = 0 and 108 +/- 8 ns for v' = 1. The rate constant for collisional removal of B-state v' = 0 (BO)-B-11 molecules by N-2 is (1.1 +/- 0.1) x 10 (11) cm(3) s (1). (c) 2013 Elsevier B.V. All rights reserved.
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收藏
页码：16 / 21
页数：6
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