FLUORINATED FULLERENES - SYNTHESIS, STRUCTURE, AND PROPERTIES

被引:94
作者
KNIAZ, K
FISCHER, JE
SELIG, H
VAUGHAN, GBM
ROMANOW, WJ
COX, DM
CHOWDHURY, SK
MCCAULEY, JP
STRONGIN, RM
SMITH, AB
机构
[1] UNIV PENN,DEPT MAT SCI & ENGN,PHILADELPHIA,PA 19104
[2] HEBREW UNIV JERUSALEM,INST CHEM,JERUSALEM,ISRAEL
[3] UNIV PENN,RES STRUCT MATTER LAB,PHILADELPHIA,PA 19104
[4] EXXON RES & ENGN CO,CORP RES LABS,ANNANDALE,NJ 08801
[5] UNIV PENN,DEPT PHYS,PHILADELPHIA,PA 19104
[6] UNIV PENN,DEPT CHEM,PHILADELPHIA,PA 19104
关键词
D O I
10.1021/ja00067a022
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Solid C60 reacts with low-pressure fluorine at 300 K, yielding yellow-to-white solids which are air-stable for long periods, with average compositions in the range C60F35-44. Mass spectrometry reveals broad distributions of F/C ratios, with only trace amounts of perfluorofullerene C60F60. Infrared and other data indicate the presence of C-F bonds, from which we deduce a ''fuzzyball'' structure with fluorines externally attached to the fullerene skeleton. Most of the material sublimes in vacuum at 300-degrees-C; molecules with F/C ratios > 48 probably decompose. The sublimed product is highly crystalline; X-ray analysis yields an average C-F bond length 1.49 angstrom. Thin films may be prepared by sublimation or spin-coating from solution. Contact angle measurements using water droplets suggest potentially interesting lubricating properties.
引用
收藏
页码:6060 / 6064
页数:5
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