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Ag_nS_m~±和Au_nS_m~±的激光产生与质谱研究(英文)
Authors
刘朝阳
郑兰荪
黄伟杰
黄荣彬
Publication date
20 February 1998
Publisher
Abstract
以高能量密度的脉冲激光束在高真空中直接溅射银(金)粉与硫的混合物,产生了丰富的银—硫和金—硫二元原子簇正负离子,记录了它们的飞行时间质谱.通过对这些簇离子的组成与分布的分析,发现了它们的一些结构规律.银硫簇离子以离子健为主,Ag_2S是它们的主要结构单元,其中Ag_(11)S_5~+和Ag_9S_5~-特别稳定;金硫簇离子基本上是共价结构,金原子间相互成健,构成簇离子的核,硫原子则仅与核表面的金原子配位,其中Ag_6S_(14)~+,Au_5S_6~-的稳定性比较突出
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Last time updated on 16/06/2016