M(N_2)_n~+(M=Y,La,Ce)的红外光解离光谱研究
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- 英文论文题名：Infrared Photodissociation Spectroscopy of M(N_2)_n~+(M=Y,La,Ce) in the Gas Phase
- 论文作者：谢华 ; 唐紫超 ; 江凌
- 英文论文作者：Hua Xie ; Zichao Tang ; Ling Jiang ; State Key Laboratory of Molecular Reaction Dynamics ; Dalian Institute of Chemical Physics ; Chinese Academy of Sciences ; State Key Laboratory for Physical Chemistry of Solid Surfaces ; and Department of Chemistry ; College of Chemistry and Chemical Engineering ; Xiamen University
- 年：2016
- 作者机构：大连化学物理研究所分子反应国家重点实验室;厦门大学固体表面物理化学国家重点实验室;
- 论文关键词：红外光解离光谱 ; 团簇 ; 过渡金属 ; 镧系金属
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第四十四分会：化学动力学
- 语种：中文
- 分类号：O644.1
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第四十四分会 ; 化学动力学
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：125k
- 原文格式：D
- 会议级别：全国
摘要
The M(N_2)_n~+(M=Y,La,Ce;n=7-8)complexes have been produced and analyzed using a laser vaporization supersonic cluster source and a tandem time-of-flight(TOF)mass spectrometer.These cluster cations have been studied via infrared photodissociation(IRPD)spectroscopy and density functional theory(DFT)calculations in the N-N stretching region.The experimental results indicate that the N-N stretching vibrational frequencies of the complexes are red-shifted with respect to the free N_2,which are larger than the red-shifts of C-O stretching vibrational frequencies in the corresponding carbonyls M(CO)_8~+.This indicates that the N_2 molecules gain more activation by these metals than CO,which is supported by the calculated fuzzy bond order of the CO/N_2 moieties.IRPD spectra and DFT calculations reveal the coexistence of two isomers in the seven-coordinate M(N_2)_7~+and eight-coordinate M(N_2)_8~+complexes,respectively,implying that the formation of the metal-nitrogen and carbonyl complexes with such high coordination number could be a common feature for Y,La and Ce.
The M(N_2)_n~+(M = Y,La,Ce;n =7-8) complexes have been studied by infrared photodissociation(IRPD)spectroscopy and density functional theory(DFT) calculations.IRPD spectra and DFT calculations reveal the coexistence of two isomers in the seven-coordinate M(N_2)_7~+ and eight-coordinate M(N_2)_8~+ complexes,respectively.The present studies on these metal-nitrogen complexes shed light on the interactions and coordinations toward N_2with the transition and lanthanide metals.
The M(N_2)_n~+(M = Y,La,Ce;n =7-8) complexes have been studied by infrared photodissociation(IRPD)spectroscopy and density functional theory(DFT) calculations.IRPD spectra and DFT calculations reveal the coexistence of two isomers in the seven-coordinate M(N_2)_7~+ and eight-coordinate M(N_2)_8~+ complexes,respectively.The present studies on these metal-nitrogen complexes shed light on the interactions and coordinations toward N_2with the transition and lanthanide metals.
引文
[1]Hua Xie,Lei Shi,Xiaopeng Xing,Zichao Tang,Phys.Chem.Chem.Phys.2016,18,4444.