Identification of the SiCl2 (ã 3B1−X̃ 1A1) emission system and a flow reactor source of SiCl2(ã 3B1)
作者:Kangyan Du、Xiaoshan Chen、D.W. Setser
DOI:10.1016/0009-2614(91)80082-9
日期:1991.6
impact with SiCl4, give an intense emission system from 500 to 650 nm. Based upon the spectroscopic constants of the upper and lower states and the long lifetime, ≈ 11 ± 2 ms, the emission is assigned as the SiCl2 (ã 3B1-X̃ 1A1) transition. The energy for SiCl2(ã) is 2.35 eV; the bending frequency of the upper state is 159 ± 2 cm−1. The quenching rate constants of SiCl2(ã) by NO, C2H4, NH3 and CH4 are 1
Ar(3 P 0.2)原子与SiCl 4和SiHCl 3的反应,以及与SiCl 4的直接电子撞击,产生了500至650 nm的强发射系统。基于所述上部和下部的状态的分光常数和长寿命,≈11±2毫秒,发射被指定为的SiCl 2(ã 3乙1 -X 1阿1)过渡。SiCl 2(ã)的能量为2.35 eV;上部状态的弯曲频率为159±2cm -1。NO,C 2 H 4对SiCl 2(ã)的猝灭速率常数,NH 3和CH 4分别为1.2×10 -11,1.3 ×10 -11,4.1 ×10 -13和1.5×10 -15 cm 3分子-1 s -1。