| 2 | Concentration modulation laser spectroscopy of the C_2 molecule Swan (d^3Π_g←a^3Π_u) system显示文摘The rotational structure of the C 2 molecule Swan (d 3 Π g←a 3 Π u) system (0,1) band has been recorded by optical heterodyne magnetic rotation enhanced concentration modulation laser spectroscopy in the range of 17730~17880 cm -1 . The C 2 molecule is generated by an electric discharge through a mixture of acetylene and argon gas and a well resolved spectrum is recorded with an absolute accuracy of 0.007 cm -1 . Sensitivity of the method enables us to observe not only the traditionally observed branches of Δ Ω =0 sub bands but also some Δ Ω ≠0 transitions, providing a slight improvement in the accuracy of some molecular constants of the two states. The theoretical spectra are simulated using the effective Hamiltonian of Brown and Merer and directly fitted to observed spectra; rotational parameters are derived from this fit for the two 3Π states. | KANIKI Kakule 1,2 , YANG Xiaohua 1, GUO Yingchun 1, YU Shanshan 1, LI Benxia 1, LIU Yuyan 1 and CHEN Yangqin 1*(1. Key Laboratory of Optical & Magnetic Resonance Spectroscopy, Department of Physics, East China Normal University, Shanghai 200062, China 2. Faculty of Engineering, University of Kinshasa, P. O. Box 225, Kinshasa 11, Dem. Republic of Congo) | 2003 | Progress in Natural Science:Materials International2003，13，10： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员