Chemistry of inorganic compounds – Carbon or compound thereof – Elemental carbon
Patent
1994-03-08
1994-12-13
Lewis, Michael
Chemistry of inorganic compounds
Carbon or compound thereof
Elemental carbon
423462, 423508, 423511, 423DIG39, C01B 3100, C01B 1900, C01B 1700, C01B 700
Patent
active
053727983
ABSTRACT:
The invention relates to a composition that is the reaction of a fullerene containing at least one corrannulene ring structure and Y.sub.2 X.sub.2, wherein Y is Se or S, and X is Cl or Br. Generally, these compounds may be represented by the formula C.sup.f.sub.n X.sub.6 Y.sub.2 or more particularly C.sup.f.sub.n X.sub.5 (YYX). In the formula C.sup.f.sub.n more specifically, is a fullerene having at least one corrannulene ring structure. The compositions may be made by reacting fullerenes with Se.sub.2 X.sub.2 or S.sub.2 X.sub.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.sup.f.sub.n X.sub.8 Y.sub.4, or more particularly, C.sup.f.sub.n X.sub.5 (YYX).mY.sub.2 X.sub.2 because in crystalline form the compositions are typically associated with .mY.sub.2 X.sub.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.
REFERENCES:
patent: 5278239 (1994-01-01), Hoxmeier
patent: 5281653 (1994-01-01), Thomann et al.
patent: 5292813 (1994-03-01), Patil et al.
patent: 5302681 (1994-04-01), McClain
Tebbe et al., "Synthesis & Single Crystal X-Ray Structure of a Highly Symmetrical C.sub.60 Derivative, C.sub.60 BR.sub.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.
McConnachie Jonathan M.
Stiefel Edward I.
Exxon Research and Engineering Company
Kalinchak Stephen G.
Lewis Michael
Scuorzo Linda M.
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