铜氧团簇负离子的产生  

Production of Copper Oxide Negative Cluster Ions

作　　者：马晨生[1] 李海洋[1] 张晓光[1] 白吉玲[1] 王秀岩[1] 张桂秋[1] 王利[1] 何国钟[1] 楼南泉[1] 

机构地区：[1]中国科学院大连化学物理研究所分子反应动力学国家重点实验室,大连116023

出　　处：《物理化学学报》1996年第2期185-189,共5页Acta Physico-Chimica Sinica

摘　　要：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 sbolar 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 bther gas in supersonic molecular bearns, and they are helpful for the production of high mass clusters.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 sbolar 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 bther gas in supersonic molecular bearns, and they are helpful for the production of high mass clusters.

关 键 词：激光烧蚀 碰撞稳定化作用 团簇负离子 铜 氧 

分 类 号：O641.4[理学—物理化学]