Lambda-doublet specificity in the low-temperature capture of NO(X 2Π1/2) in low rotational states by C+ ions

被引：6

作者：

Auzinsh, M. ^{[1
]}

Dashevskaya, E. I. ^{[2
,3
]}

Litvin, I. ^{[2
,3
]}

Nikitin, E. E. ^{[2
,3
]}

Troe, J. ^{[3
,4
]}

机构：

[1] Latvian State Univ, Dept Phys, LV-1586 Riga, Latvia

[2] Technion Israel Inst Technol, Schulich Fac Chem, IL-32000 Haifa, Israel

[3] Max Planck Inst Biophys Chem, D-37077 Gottingen, Germany

[4] Univ Gottingen, Inst Phys Chem, D-37077 Gottingen, Germany

来源：

JOURNAL OF CHEMICAL PHYSICS | 2009年 / 130卷 / 01期

关键词：

carbon; electron capture; hyperfine structure; nitrogen compounds; positive ions; reaction rate constants; rotational states; Stark effect; DIPOLAR MOLECULES; CHANNEL TREATMENT; REACTION-RATES; NITRIC-OXIDE; LOW-ENERGY; SPECTRUM; COLLISIONS; BAND;

D O I：

10.1063/1.3043365

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：

Following our general approach to Lambda-doubling specificity in the capture of dipolar molecules by ions [M. Auzinsh , J. Chem. Phys. 128, 184304 (2008)], we calculate the rate coefficients for the title process in the temperature range 10(-4)< T < 10(2) K. Three regimes considered are as follows: (i) nonadiabatic capture in the regime of high-field Stark effect with respect to the Lambda-doubling components, (10(-1)< T < 10(2) K), (ii) adiabatic capture in the regime of intermediate Stark effect (10(-3)< T < 10(-1) K), and (iii) adiabatic capture in the limit of very low temperatures (T < 10(-3) K) in the regime of quadratic Stark effect with respect to the Lambda-doubling and hyperfine components. The results predict a high specificity of the capture rates with respect to the Lambda-doublet states even under conditions when the collision energy of the partners strongly exceeds the Lambda-doubling splitting.

引用

页数：10

共 29 条

[1] Nonadiabatic transitions between lambda-doubling states in the capture of a diatomic molecule by an ion [J].