Bending vibrational wave numbers in the (a)over-tilde 3Πu and (b)over-tilde 3Πg states of C3

被引：6
|
作者：
Tokaryk, DW
Harvie, DJ
Lees, RM
Xu, LH
机构：
[1] Mt Allison Univ, Dept Phys, Sackville, NB E4L 1E6, Canada
[2] Univ New Brunswick, Dept Phys, Fredericton, NB E3B 5A3, Canada
[3] Univ New Brunswick, Dept Phys Sci, St John, NB E2L 4L5, Canada
来源：
JOURNAL OF CHEMICAL PHYSICS | 2002年 / 117卷 / 10期
关键词：
D O I：
10.1063/1.1498470
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 spectrum of the 050 (3)Sigma(u)(-)-010 (3)Sigma(g)(-) band of the (b) over tilde (3)Pi(g)-(a) over tilde (3)Pi(u) electronic transition of C-3 is reported. The data, when considered with the previously observed 010 (3)Sigma(u)(-)-010 (3)Sigma(g)(-) band, measure the absolute interval between the 050 (3)Sigma(u)(-) and 010 (3)Sigma(u)(-) levels of the (b) over tilde (3)Pi(g) state. This interval, and the Renner parameters for (a) over tilde (3)Pi(u) and (b) over tilde (3)Pi(g) [D. W. Tokaryk and S. Civis, J. Chem. Phys. 103, 3928 (1995)], allow us to greatly improve estimates of the bending vibrational wave numbers in these electronic states. The values (542.3 cm(-1) for (a) over tilde (3)Pi(u), and 392.4 cm(-1) for (b) over tilde (3)Pi(g)) predict the origins of all previously reported bands of (b) over tilde (3)Pi(g) -(a) over tilde (3)Pi(u) involving bending to within 13 cm(-1). (C) 2002 American Institute of Physics.
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页码：4825 / 4830
页数：6
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