CHARACTERIZATION OF A LARGE SINGLET-TRIPLET COUPLING IN THE (A)OVER-TILDE STATE OF THE ACETYLENE MOLECULE

被引：16

作者：

DUPRE, P ^{[1
]}

GREEN, PG ^{[1
]}

机构：

[1] MIT,DEPT CHEM,CAMBRIDGE,MA 02139

来源：

CHEMICAL PHYSICS LETTERS | 1993年 / 212卷 / 06期

关键词：

D O I：

10.1016/0009-2614(93)85486-8

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：

We present limited results concerning the largest anticrossing (almost-equal-to 0.5 T, fwhm ) observed in the series of anticrossing spectra A 1A(u) v3', =0-3, K'=N'=I'=0 in the gaseous acetylene molecule (C2H2). By analyzing the fluorescence line positions around 7.15 T, we deduce the anticrossing parameters in a two-level model. The Lande g factor shows this anticrossing results from a large coupling of a S1 (A) level with a zeroth-order triplet level. This agrees well with our previous hypothesis of the existence of a triplet linear isomerization barrier in the vicinity of the energy range studied (almost-equal-to 45500 cm-1).

引用

页码：555 / 560

页数：6

共 13 条

[1]

ABRAMSON EH, 1985, THESIS MIT CAMBRIDGE

[2]

[Anonymous], 1969, DATA REDUCTION ERROR

[3] SHAPES OF SOME EXCITED-STATES OF ACETYLENE [J].