Two New Electronic Transitions of Tungsten Monoxide Studied by Laser Spectroscopy

作     者：Zhang Jicai Zhao Dongmei Ma Xinwen Yang Jie 

作者机构：Institute of Modern PhysicsChinese Academy of SciencesLanzhou 730000China University of Chinese Academy of SciencesBeijing 100049China 

出 版 物：《IMP & HIRFL Annual Report》 (中国科学院近代物理研究所和兰州重离子研究装置年报（英文版）)

年 卷 期：2018年第1期

页      面：68-69页

学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

基　　金：National Key R&D Program of China(2017YFA0402300) 

主　　题：calculation. rotational Transition 

摘      要：Combing pulsed discharge supersonic beam and laser ablation techniques,we investigated the laser-induced fluorescence(LIF)excitation spectra of jet-cooled WO molecule in the range of 2100023200 cm−***.1(a)shows our experimental setup,the gas phase WO molecules were produced by the reaction to O2 molecules with the tungsten atoms ablated from a pure tungsten *** vibronic bands were observed for the first time and assigned to two electronic transition systems[21.2]0+–X0+and[22.2]0+–X0+.The rotational constants in these two excited electronic states have been derived by rotational analysis of the ***.1(b)shows the observation and calculation of the rotational spectra of[21.2]0+–X0+(0–)band,and the tungsten isotope splittings were clearly resolved in P-branch,which caused by four major tungsten isotopes,28.6%186W,30.7%184W,14.28%183W,and 26.3%*** on the vibrational frequencies in the ground electronic state X0+and upper[21.2]0+state,a blue isotopic shift0.03 cm−1/amu is expected in ***,a red isotopic shifts0.19 cm−1/amu is observed experimentally.