Linton C, Adam A G, Steimle T C
Centre for Laser, Atomic, and Molecular Sciences, Physics Department, University of New Brunswick, 8 Bailey Drive, Fredericton, New Brunswick E3B 5A3, Canada.
Centre for Laser, Atomic, and Molecular Sciences, Chemistry Department, University of New Brunswick, 30 Dineen Drive, Fredericton, New Brunswick E3B 5A3, Canada.
J Chem Phys. 2014 Jun 7;140(21):214305. doi: 10.1063/1.4880255.
High resolution spectra of the 0-0 band of the [18.6]3.5 - X(1)4.5 transition of uranium monofluoride, UF, obtained using a laser ablation spectrometer, showed a perturbation in the upper state. Examination of the Stark and Zeeman effects yielded permanent electric dipole moments of 2.01 and 1.88 D and magnetic g-factors of 3.28 and 3.26 for the ground and excited states, respectively. Both the dipole moment and g-factor of the ground state are in good agreement with ab initio calculations [I. O. Antonov and M. C. Heaven, J. Phys. Chem. A 117, 9684 (2013)]. The Zeeman effect results confirm that the ground state arises primarily from the U(+)(5f (3)7s(2 4)I(4.5))F(-) configuration and suggest several possible configurations for the upper state.
使用激光烧蚀光谱仪获得的一氟化铀（UF）[18.6]3.5 - X(1)4.5跃迁0 - 0带的高分辨率光谱显示，其高能态存在微扰。对斯塔克效应和塞曼效应的研究得出，基态和激发态的永久电偶极矩分别为2.01 D和1.88 D，磁g因子分别为3.28和3.26。基态的偶极矩和g因子均与从头算结果[I. O. 安东诺夫和M. C. 海文，《物理化学杂志A》117, 9684 (2013)]高度吻合。塞曼效应结果证实，基态主要源自U(+)(5f (3)7s(2 4)I(4.5))F(-)组态，并为高能态提出了几种可能的组态。
