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Citation: Ma Chen-Sheng, Li Hai-Yang, Zhang Xiao-Guang, Bai Ji-Ling, Wang Xiu-Yan, Zhang Gui-Qiu, Wang Li, He Guo-Zhong, Lou Nan-Quan. Production of Copper Oxide Negative Cluster Ions[J]. Acta Physico-Chimica Sinica, ;1996, 12(02): 185-189. doi: 10.3866/PKU.WHXB19960220 shu

Production of Copper Oxide Negative Cluster Ions

1.
State Key Laboratory of Molecular Reaction Dynamics,Dalian Institute of Chemical Physics,Academia Sinica,Dalian 116023

Received Date: 22 March 1995
Available Online: 15 February 1996

Copper oxide cluster ions CunOm n=1-22, m=1-12 are generated by 523 nm laser ablation of CuCO3 solid sample with Time of Flight Mass Spectrometer detection. By changing precursor, we get similar TOF MS from Cu(NO3)2 sample, but narrower mass distribution from CuO sample. We suggest that this is caused by collisionally stabilization. Small gas molecules CO2 and NO2, generated by laser ablation of CuCO3 and Cu(NO3)2, act as buffer gas in supersonic molecular beams, and they are helpful for the production of high mass clusters.
- Cluster,
- Laser ablation,
- Collsionally stabilization,
- Copper oxide
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