OBSERVATION OF THE DOUBLY CHARGED, GAS-PHASE FULLERENE ANIONS C602- AND C702-

被引：158

作者：

LIMBACH, PA ^{[1
]}

SCHWEIKHARD, L ^{[1
]}

COWEN, KA ^{[1
]}

MCDERMOTT, MT ^{[1
]}

MARSHALL, AG ^{[1
]}

COE, JV ^{[1
]}

机构：

[1] OHIO STATE UNIV,DEPT CHEM,120 W 18TH AVE,COLUMBUS,OH 43210

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1991年 / 113卷 / 18期

关键词：

D O I：

10.1021/ja00018a012

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The fullerenes exhibit a remarkable ability to accommodate excess negative charge. We have observed C60(2-) and C70(2-) in a Fourier transform ion cyclotron resonance mass spectrometer by laser desorption (1.064-mu-m) of raw fullerene material that had been extracted from soot produced from graphite rods. C60(2-) was distinguished from C30- by the relative abundances and m/z values of its isotopic ions. C60(2-) was distinguished from the double harmonic of C60- by selective ejection of C60-, selective excitation of C60(2-), and by a new and definitive method based upon comparing frequency shifts of singly and doubly charged ions as a function of ICR trapping voltage.

引用

页码：6795 / 6798

页数：4

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