|United States Patent||5,372,798|
|McConnachie, et. al.||Dec. 13, 1994|
|Inventors:||McConnachie; Jonathan M. (Flemington, NJ); Stiefel; Edward I. (Bridgewater, NJ).|
|Assignee:||Exxon Research and Engineering Company (Florham Park, NJ).|
|Filed:||Mar. 8, 1994|
|Intl. Cl.:||C01B 31/00; C01B 19/00; C01B 17/00; C01B 7/00;|
|U.S. Cl.:||423/445.B; 423/462.;|
|Field of Search:||445 B;DIG. 39;414;462;508;511 |
|5,281,653||Jan., 1994||Thomann et al.||524/490|
|5,292,813||Mar., 1994||Patil et al.||525/240|
|5,302,681||Apr., 1994||McClain||526/340 .2|
Tebbe et al., "Synthesis & Single Crystal X-Ray Structure of a Highly Symmetrical C(60) Derivative, C(60) BR(24) " Science, vol. 256, May 8, 1992 pp. 822-825.
Taylor et al. "The Chemistry of Fullerenes" Nature vol. 363, Jun. 24, 1993, pp. 685-693.
The invention relates to a composition that is the reaction of a fullerene containing at least one corrannulene ring structure and Y(2) X(2), wherein Y is Se or S, and X is Cl or Br. Generally, these compounds may be represented by the formula C(^f)(n) X(6) Y(2) or more particularly C(^f)(n) X(5) (YYX). In the formula C(^f)(n) more specifically, is a fullerene having at least one corrannulene ring structure. The compositions may be made by reacting fullerenes with Se(2) X(2) or S(2) X(2) 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 C(^f)(n) X(8) Y(4), or more particularly, C(^f)(n) X(5) (YYX).mY(2) X(2) because in crystalline form the compositions are typically associated with .mY(2) X(2) 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.