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激光作用于稠环芳烃及其衍生物产生碳原子簇的负离子质谱研究
Authors
刘朝阳
赵剑虹
郑兰荪
黄荣彬
Publication date
1 May 1993
Publisher
Abstract
在自制的装置上以脉冲激光束作用于多种稠环芳烃及衍生物,产生各种大小的碳原子簇与它们的化合物,对这些簇负离子的质谱分析表明,其中质量较高的离子具有球烯(Fullerene)的空间封闭体构型,信号强度最突出的是C~-_(50),次为C~-n,而C~-(60)在实验记录的多数质谱中并不突出;质量较低的离子的构型则是直链状的,其组成为C~-_n和C_nX~-(X因样品的不同分别为N、B、H、P和OH),而C_nX~-因其杂原子X的组成的不同,n或者必须为偶数、或者必须为奇数;质量靠近样品分子量的离子则仍为环状构型,其中保留了较多数量的氢原子
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Last time updated on 16/06/2016