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United States Patent 5,372,798
McConnachie, et. al.Dec. 13, 1994

Fullerene compositions and preparation

Inventors: McConnachie; Jonathan M. (Flemington, NJ); Stiefel; Edward I. (Bridgewater, NJ).
Assignee: Exxon Research and Engineering Company (Florham Park, NJ).
Appl. No.: 207,645
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

References Cited

U.S. Patent Documents
5,278,239Jan., 1994Hoxmeier 525/232
5,281,653Jan., 1994Thomann et al. 524/490
5,292,813Mar., 1994Patil et al. 525/240
5,302,681Apr., 1994McClain 526/340 .2

Other References

Primary Examiner: Lewis; Michael
Assistant Examiner: Kalinchak; Stephen G.


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.

9 Claims, 3 Drawing Figures

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