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A Reflectron Time-of-Flight Mass Spectrometer with a Nano-Electrospray Ionization Source for Study of Metal Cluster Compounds
Xiao-hu Wu,Hua Xie,Zhi-ling Liu,Hai-feng Su,Shui-chao Lin,Zi-chao Tang
Author NameAffiliationE-mail
Xiao-hu Wu State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China  
Hua Xie State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China  
Zhi-ling Liu School of Chemistry & Material Science, Shanxi Normal University, Linfen 041004, China  
Hai-feng Su State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China  
Shui-chao Lin State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China zctang@dicp.ac.cn 
Zi-chao Tang State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China;State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China sclin@xmu.edu.cn 
Abstract:
An experiment facility has been set up for the study of metal cluster compounds in our laboratory, which consists of a nano-electrospray ionization source, an ion transmission and focus system, and a reflectron time-of-flight mass spectrometer. Taking advantage of the nano-electrospray ionization source, polyvalent ions are usually produced in the “ionization” process and the obtained mass resolution of the equipment is over 8000. The molecular ion peaks of metal cluster compounds [Au20(PPhpy2)10Cl2](SbF6)4, where PPhpy2=bis(2-pyridyl)phenylphosphine, and [Au6Ag2(C)L6](BF4)4, where L=2-(diphenylphosphino)-5-methylpyridine, are distinguished in the respective mass spectrum, accompanied by some fragment ion peaks. In addition, the mass-to-charge ratios of the parent ions are determi-nated. Preliminary results suggest that the device is a powerful tool for the study of metal cluster compounds. It turns out that the information obtained by the instrumentation serves as an essential supplement to single crystal X-ray diffraction for structure characterization of metal cluster compounds.
Key words:  Nano-electrospray ionization source  Ion transmission and focus system  Reflectron time-of-flight mass spectrometer  Metal cluster compounds  Single crystal X-ray diffraction
FundProject:We thank Professor Quan-ming Wang for providing the metal cluster compounds samples. This work was supported by the National Natural Science Foundation of China (No.21103186, No.21273233, and NO.21227001), the Ministry of Science and Technology of China, and the Chinese Academy of Sciences.
反射式飞行时间质谱仪结合纳升电喷雾电离源研究金属簇合物
吴小虎,谢华,刘志凌,苏海峰,林水潮,唐紫超
摘要:
自行搭建了一台实验仪器研究金属簇合物. 这台仪器由纳升电喷雾电离源、离子传输与聚焦系统和反射式飞行时间质谱仪组成. 纳升电喷雾电离源能产生多价离子. 仪器的质量分辨率高于8000. 金属簇合物[Au20(PPhpy2)10Cl2](SbF6)4(PPhpy2是双(2-吡啶基)苯基膦)和[Au6Ag2(C)L6](BF4)4(L是2-(二苯膦基)-5-甲基吡啶)的分子离子峰分别被检测到,同时也分别得到一些碎片离子峰. 同时分子离子峰的荷质比被确定. 初步结果表明这台仪器是研究金属簇合物的强大工具. 这些质谱结果在金属簇合物的结构表征中被证明是单晶X射线衍射方法的必要补充.
关键词:  纳升电喷雾电离源  离子传输与聚焦系统  反射式飞行时间质谱仪  金属簇合物  单晶X射线衍射
DOI:10.1063/1674-0068/29/cjcp1601019
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