Mobility of t-C4H9+ in polar and nonpolar atmospheric gases

被引：5

作者：

Haber, LH

Husband, J

Plenge, J

Leone, SR ^{[1
]}

机构：

[1] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[3] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

来源：

CHEMICAL PHYSICS LETTERS | 2004年 / 384卷 / 4-6期

关键词：

D O I：

10.1016/j.cplett.2003.11.111

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：

The reduced zero-field mobilities of t-C4H9+ drifting in He, N-2, O-2 and H2O are measured by ion depletion arrival time analysis to be 14.8+/-0.6, 3.7+/-0.8, 3.3+/-0.8 and 0.04+/-0.02 cm(2) V-1 s(-1), respectively. The mobilities are relatively constant with varying drift fields in the three nonpolar gases, but increase significantly with increasing drift field in water vapor, demonstrating the large difference between polar and nonpolar interaction potentials on the mobility of t-C4H9+. The results are compared to locked-dipole calculations. The relevance towards better modeling of hypersonic combustion and ion-injection processes is also discussed. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：219 / 223

页数：5

共 18 条

[1] Rate constants and branching ratios for the reactions of selected atmospheric primary cations with n-octane and isooctane (2,2,4-trimethylpentane) [J].