【摘要】 用CCl4 /Ar混合气体脉冲直流高压放电产生CCl2 自由基 ,在超声射流冷却下获得了CCl2 A 1B1- X 1A14 40～ 5 80nm的K 结构分辨的激光诱导荧光激发谱 .通过K 结构分辨谱的分析 ,对 72 2条转动子谱带进行了归属 ,得到了激发态CCl2 A 1　B1的两个全对称振动模式的振动频率、非谐性常数和转动常数差值 ,即激发态的振动频率ω1=6 31.2 0cm-1,ω2 =30 2 .0 0cm-1,A′-B′ =3.476cm-1.更多还原

【Abstract】 CCl 2 was produced by dc discharge of CCl 4 seeded in Argon gas with a ratio of 1/50. Laser induced fluorescence excitation spectrum of CCl 2 1B 1- 1A 1 between 440～580 nm has been measured under the supersonic free jet conditions. The K structures of ( v 1, v 2, v 3)-( 0, 0, 0 ) bands were clearly resolved and assigned to 722 subbands. The vibrational frequencies, ω 1=631.20 cm -1 , ω 2=302.00 cm -1 , and A′-B′ =3.476 cm -1 in the excited state were obtained.更多还原