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Laser ablation of Co/Ge mixtures: a new type of endohedral structure, a semiconductor cage trapping a metal atom
Author(s) -
Zhang Xia,
Li Guoliang,
Gao Zhen
Publication year - 2001
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.408
Subject(s) - chemistry , cluster (spacecraft) , germanium , atom (system on chip) , tetragonal crystal system , ion , crystallography , cobalt , metal , atomic physics , inorganic chemistry , crystal structure , silicon , computer science , embedded system , programming language , physics , organic chemistry
In experiments on Co/Ge binary clusters by laser vaporization, a remarkably strong signal in the mass spectrum was presented, which was assigned to the cluster anion consisting of ten germanium atoms and one cobalt atom, [CoGe 10 ] − . For this cluster anion we suggest an endohedral structure – a Ge 10 cage trapping a Co atom in its interior. Reactions between cobalt clusters and germanium clusters using a laser double ablation reactor also confirmed the endohedral structure. According to the electronic and geometrical shell closures, a bicapped tetragonal antiprism structure was predicted for this endohedral [CoGe 10 ] − cluster anion. Copyright © 2001 John Wiley & Sons, Ltd.