C_(90-150)^+的质谱与结构分析  

MASS SPECTROMETRY AND STRUCTURE STUDIES OF C_(90-150^+)

作　　者：李文莹[1] 庄马展[1] 黄荣彬[1] 丁少平 郑兰荪[1] 

机构地区：[1]厦门大学化学系,361005

出　　处：《物理化学学报》1990年第5期517-518,共2页Acta Physico-Chimica Sinica

基　　金：青年自然科学基金

摘　　要：近年来,随着Smalley等发现C_(60),根据其在质谱中的突出信号强度推论它具有足球形的完美空心构型,并进而认为所有n>30的碳原子簇都具有由五边形和六边形构成的多面体封闭构型以来,对碳原子簇结构的兴趣、认识与研究都发展得很快。然而,目前的研究手段仍以质谱为主,而且基本上局限于n≤80的碳原子簇,对于更高核的碳原子簇的几何构型,还仅限于理论推测。It was proposed that all carbon clusters with n>30 have geometrically closedcage structures. The mass spectrum of C_(92-151)^+ was observed on a self-built laserprobe time-of-flight mass spectrometer. The spectrum showed that for cluster sizeless or equal to 126, only even-number cluster exists, which is consistant with aclosed structure. The system was broken for cluster larger than 126. This observationindicates that the structural configuration changes with increase of the cluster size.

关 键 词：C90-150^+ 质谱 结构分析 

分 类 号：O613.71[理学—无机化学]