AB-INITIO INVESTIGATION OF THE STRUCTURE OF THE X(2)A', A(2)A''(1(2)PI) SPECTRAL SYSTEM OF HCO - THEORETICAL TREATMENT OF THE VIBRONIC AND SPIN-ORBIT-COUPLING

被引:20
|
作者
PERIC, M [1 ]
MARIAN, CM [1 ]
PEYERIMHOFF, SD [1 ]
机构
[1] UNIV BELGRADE, INST PHYS CHEM, YU-11001 BELGRADE, YUGOSLAVIA
关键词
D O I
10.1006/jmsp.1994.1205
中图分类号
O64 [物理化学(理论化学)、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号
070203 ; 070304 ; 081704 ; 1406 ;
摘要
An ab initio investigation of the vibronic and the spin-orbit coupling effects in the X2 A', A2 A'' (1 2II) system of HCO is presented. Vibronic energies, intensity distributions within the band progressions, and spin-orbit splittings for levels of different vibronic symmetries are computed. The calculated spin-orbit constant A(SO) is determined to be 69 cm-1, roughly a factor of 2.5 larger than that previously assumed. With this value of A(SO), agreement within 0.02 cm-1 between our theoretical and experimental fine-structure splittings of the lower vibronic levels is observed. (C) 1994 Academic Press, Inc.
引用
收藏
页码:406 / 422
页数:17
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