ANISOTROPIC COVALENT BONDING AND PHOTOPOLYMERIZATION OF C-70

被引：15

作者：

MENON, M ^{[1
]}

RAO, AM ^{[1
]}

SUBBASWAMY, KR ^{[1
]}

EKLUND, PC ^{[1
]}

机构：

[1] UNIV KENTUCKY,CTR APPL ENERGY RES,LEXINGTON,KY 40506

来源：

PHYSICAL REVIEW B | 1995年 / 51卷 / 02期

关键词：

D O I：

10.1103/PhysRevB.51.800

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report theoretical and experimental results demonstrating covalent bonding between C70 molecules. Experimental results indicating the transformation of C70 films upon exposure to visible or ultraviolet radiation into a strongly bonded solid phase, similar to the transformation observed in solid C60 films are presented. Unlike C60 molecules, however, the covalent bonding between C70 molecules is found to be highly directional, strongly favoring certain relative intermolecular orientations. This theoretical finding is consistent with recent laser desorption mass spectroscopy results for visible or UV light irradiated C70 films which find the cross section for the phototransformation to a new toluene-insoluble solid phase to be considerably smaller than observed for solid C60. The combined results suggest that the photochemical 2+2 cycloaddition reaction is responsible for the transformation. © 1995 The American Physical Society.

引用

页码：800 / 803

页数：4

共 25 条

[1] (ETA-2-C70)IR(CO)CL(PPH3)2 - THE SYNTHESIS AND STRUCTURE OF AN ORGANOMETALLIC DERIVATIVE OF A HIGHER FULLERENE [J].