Preparation and characterisation of C-119

被引:46
作者
Gromov, A
Ballenweg, S
Giesa, S
Lebedkin, S
Hull, WE
Kratschmer, W
机构
[1] UNIV HEIDELBERG,INST ORGAN CHEM,D-69120 HEIDELBERG,GERMANY
[2] FORSCHUNGSZENTRUM KARLSRUHE,INST NUKL FESTKORPERPHYS,D-76021 KARLSRUHE,GERMANY
[3] DEUTSCH KREBSFORSCHUNGSZENTRUM,ZENT SPEKT,D-69120 HEIDELBERG,GERMANY
关键词
FULLERENE; STABILITY; C-60;
D O I
10.1016/S0009-2614(97)00129-2
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Thermolysis of C120O at 550-600 degrees C yielded a soluble product fraction containing C-60, C-119 and higher-mass species. Using a two-step HPLC procedure two species, both with molecular weight corresponding to C-119, were isolated in 3.5% and 2% yield. The 125.76 MHz C-13-NMR spectrum of the latter more stable product obtained from C-13 enriched samples proved that this species consists of two C-58 cages bridged by three sp(3) carbons, two of which are equivalent. MR-consistent C-119 structures have been investigated by molecular modeling and turned out to exhibit C-2 symmetry.
引用
收藏
页码:460 / 466
页数:7
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