典型文献
Laser-induced fluorescence experimental spectroscopy and theoretical calculations of uranium monoxide
文献摘要:
As a model molecule of actinide chemistry,UO molecule plays an important role in understanding the electronic structure and chemical bonding of actinide-containing species.We report a study of the laser-induced fluorescence spectra of the U160 and U18O using two-dimensional spectroscopy.Several rotationally resolved excitation spectra were investi-gated.Accurate molecular rotational constants and equilibrium internuclear distances were reported.Low-lying electronic states information was extracted from high resolution dispersed fluorescence spectra and analyzed by the ligand field theory model.The configuration of the ground state was determined as U2+(5f37s)O2-.The branching ratios,and the vibrational harmonic and anharmonic parameters were also obtained.Radiative lifetimes were determined by recording the time-resolved fluorescence spectroscopy.Transition dipole moments were calculated using the branching ratios and the radiative lifetimes.These findings were elucidated by using quantum-chemical calculations,and the chemical bonding was also analyzed.The findings presented in this work will enrich our understanding of actinide-containing molecules.
文献关键词:
中图分类号:
作者姓名:
Xi-Lin Bai;Xue-Dong Zhang;Fu-Qiang Zhang;Timothy C Steimle
作者机构:
School of Physics and Information Engineering,Key Laboratory of Spectral Measurement and Analysis of Shanxi Province,Shanxi Normal University,Linfen 041004,China;School of Chemical and Material Science,Key Laboratory of Magnetic Molecules&Magnetic Information Materials of Ministry of Education,Shanxi Normal University,Linfen 041004,China;School of Molecular Science,Arizona State University,Tempe 85287,USA
文献出处:
引用格式:
[1]Xi-Lin Bai;Xue-Dong Zhang;Fu-Qiang Zhang;Timothy C Steimle-.Laser-induced fluorescence experimental spectroscopy and theoretical calculations of uranium monoxide)[J].中国物理B(英文版),2022(05):279-286
A类:
U160,U18O,internuclear,U2+,5f37s
B类:
Laser,induced,fluorescence,experimental,spectroscopy,theoretical,calculations,uranium,monoxide,model,actinide,chemistry,UO,plays,important,role,understanding,electronic,structure,chemical,bonding,containing,species,We,study,laser,spectra,using,two,dimensional,Several,rotationally,resolved,excitation,were,investi,gated,Accurate,molecular,constants,equilibrium,distances,reported,Low,lying,states,information,was,extracted,from,high,resolution,dispersed,analyzed,by,ligand,field,theory,configuration,ground,determined,O2,branching,ratios,vibrational,anharmonic,parameters,also,obtained,Radiative,lifetimes,recording,Transition,dipole,moments,calculated,radiative,These,findings,elucidated,quantum,presented,this,work,will,enrich,our,molecules
AB值:
0.573034
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