激光溅射法生成碱金属杂氮原子团簇NaN_(n)^(+)和KN_(n)^(+)  

Formation of NaN_(n)^(+) and KN_(n)^(+) Alkali Metal-Doped Nitrogen Cluters by Laser Ablation

作　　者：李陶琦[1] 丁可伟[1] 许洪光[2] 刘庆[1] 屈晨曦 郑卫军[2] 葛忠学[1] Li Taoqi;Ding Kewei;Xu Hongguang;Liu Qing;Qu Chenxi;Zheng Weijun;Ge Zhongxue(No.1 Department,Xi'an Modern Chemistry Research Institute,Xi'an,Shaanxi 710065,China;Beijing National Laboratory for Molecular Science,Institute of Chemistry(Molecular Reaction Dynamical Laboratory),Chinese Academy of Science,Beijhig 100190,China)

机构地区：[1]西安近代化学研究所一部,陕西西安710065 [2]北京分子科学国家实验室,中国科学院化学研究所(分子动力学实验室),北京100190

出　　处：《化学世界》2021年第1期28-32,共5页Chemical World

基　　金：国家自然科学基金(No.21502148)资助项目。

摘　　要：以高纯氮气为载气和反应物,分别通过激光轰击NaF、NaCl、KF和KCl压制成的样品,生成了相应团簇NaN_(n)^(+)和KN+n,得到了团簇质谱图。其中,发现了钠杂氮团簇NaN_(2)^(+)、NaN_(4)^(+)、NaN_(5)^(+)、NaN_(6)^(+)、NaN_(8)^(+)、NaN_(9)^(+)、NaN_(10)^(+)、NaN_(12)^(+)和钾杂氮团簇KN_(2)^(+)、KN_(4)^(+)、KN_(6)^(+)、KN_(8)^(+)。质谱分析表明,氮原子数为奇数的钠和钾杂氮原子团簇不容易生成,而氮原子数为偶数的钠杂氮原子团簇和钾杂氮原子团簇较容易生成,其离子峰的相对强度随氮原子数增加而降低。Two new clusters of NaN_(n)^(+) and KN_(n)^(+) were generated by laser ablation of NaF, NaCl, KF and KCl discs with N2 as carrier gas and reactant. According to the mass spectral analysis,NaN_(n)^(+) clusters are easier to generate than KN_(n)^(+) clusters. Even-number nitrogen clusters are easier to be generated than odd-number nitrogen clusters and the relative intensity of cluster ion peaks of even-number nitrogen clusters decreases with the increase of the number of nitrogen atom.

关 键 词：氮原子簇 钠杂氮团簇 钾杂氮团簇 激光溅射 

分 类 号：O623.738[理学—有机化学]