| 摘要 |
The invention relates to a composition that is the reaction of a fullerene containing at least one corrannulene ring structure and Y2X2, wherein Y is Se or S, and X is Cl or Br. Generally, these compounds may be represented by the formula CfnX6Y2 or more particularly CfnX5(YYX). In the formula Cfn more specifically, is a fullerene having at least one corrannulene ring structure. The compositions may be made by reacting fullerenes with Se2X2 or S2X2 wherein X is Cl or Br, preferably in liquid form and preferably heated for a time sufficient to produce the novel compositions. The compositions may be isolated in crystalline form by precipitation with a solvent such as hexane. In crystalline form the compositions may be represented by the generic formula CfnX8Y4, or more particularly, CfnX5(YYX).mY2X2 because in crystalline form the compositions are typically associated with .mY2X2 molecules wherein m is an integer at least equal to 1. The compositions have utility as crosslinking agents and lubricating oil and polymer additives, particularly as vulcanizing agents.
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