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.

引用

页码：16 / 21

页数：6

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