Isomeric and structural impacts on electron acceptability of carbon cages in atom-bridged fullerene dimers

	Isomeric and structural impacts on electron acceptability of carbon cages in atom-bridged fullerene dimers
	Sun BY(孙宝云); Ren TX(任同祥); Yuan H(袁慧); Xing GM(邢更妹); Dong JQ(董金泉); Zhao F(赵峰); Gao XY(高学云); Zhao YL(赵宇亮); Sun, BY; Ren, TX
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2008
卷号	112 期号:3 页码:741-746
通讯作者	[Sun, Baoyun ; Ren, Tongxiang ; Dai, Fucai ; Jin, Long ; Yuan, Hui ; Xing, Gengmei ; Dong, Jinquan ; Chen, Hao ; Zhao, Feng ; Gao, Xueyun ; Zhao, Yuliang] Chinese Acad Sci, Inst High Energy Phys, Lab Biol Effects Nanomat & Nanosafety, Beijing 100049, Peoples R China ; [Sun, Baoyun ; Ren, Tongxiang ; Dai, Fucai ; Jin, Long ; Yuan, Hui ; Xing, Gengmei ; Dong, Jinquan ; Chen, Hao ; Zhao, Feng ; Gao, Xueyun ; Zhao, Yuliang] Natl Ctr Nanosci & Technol China, Beijing 100080, Peoples R China ; [Miao, Xiaopei ; Li, Meixian] Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China ; [Dai, Fucai ; Chang, Fei] Inner Mongolia Univ, Coll Chem & Chem Engn, Hohhot 010021, Peoples R China ; [Miao, Xiaopei ; Hu, Jingbo] Beijing Normal Univ, Dept Chem, Beijing 100875, Peoples R China
英文摘要	The electrochemical properties of the carbon-bridged fullerene dimers C-121(I), C-121(II), C-121(III), C-131, and C-141 were characterized systematically for the first time in this study. Cyclic voltammogram and differential pulse voltammogram analyses revealed that they first underwent three reversible fullerene-unit-based reduction processes where each of the two carbon cages accepted one electron in each step and then possessed a different deep reduction sequence from the fourth to sixth reduction potentials of the fullerene cages. The electronic interactions between cages in the atom-bridged dimers (e.g., C-60-C-C-60) were found to be different from those of dimers in which two cages were connected directly. Comparison studies of the redox properties of the five dimers revealed that the C-60 dimerization via [5.6]-[6.6] connection influenced the cage electron acceptability much more than that of [5.6]-[5.6] or [6.6]-[6.6] connections And the dimerization with C-70 cages influenced the reduction potentials of dimerized products more potently than that with C-60 cages. Further results from controlled potential electrolysis, high-performance liquid chromatography, matrix-assisted laser desorption and ionization time-of-flight mass spectrometry, ultraviolet absorption spectral analyses demonstrated the reduction processes and a dissociation of the dimers based on reductions. The theoretical understanding of the experiments was investigated by using time-dependent density functional calculations for the ionic states Of C-121(I, II, III)(n-) with n = 0, 1, 2, 3, or 4.
学科主题	Chemistry; Science & Technology - Other Topics; Materials Science
类目[WOS]	Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
研究领域[WOS]	Chemistry ; Science & Technology - Other Topics ; Materials Science
原文出处	SCI
语种	英语
WOS记录号	WOS:000252484000015
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/238401]
专题	高能物理研究所_多学科研究中心高能物理研究所_加速器中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Sun BY,Ren TX,Yuan H,et al. Isomeric and structural impacts on electron acceptability of carbon cages in atom-bridged fullerene dimers[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2008,112(3):741-746.
APA	孙宝云.,任同祥.,袁慧.,邢更妹.,董金泉.,...&Zhao, Y.(2008).Isomeric and structural impacts on electron acceptability of carbon cages in atom-bridged fullerene dimers.JOURNAL OF PHYSICAL CHEMISTRY C,112(3),741-746.
MLA	孙宝云,et al."Isomeric and structural impacts on electron acceptability of carbon cages in atom-bridged fullerene dimers".JOURNAL OF PHYSICAL CHEMISTRY C 112.3(2008):741-746.