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The First Crystal Structure of a Halogenated Higher Fullerene, C 78 Br 18 , Obtained by Bromination of a Fullerene Mixture
Author(s) -
Troyanov Sergey I.,
Kemnitz Erhard
Publication year - 2003
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.200300358
Subject(s) - halogenation , chemistry , fullerene , bromine , crystal structure , double bond , conjugated system , fullerene chemistry , crystallography , organic chemistry , polymer
Simple bromination of a fullerene mixture allowed the separation of C 78 from other fullerenes in form of crystalline C 78 Br 18 . The first X‐ray single‐crystal structure of a halogenated higher fullerene, C 78 Br 18 , revealed that the addition pattern of 18 bromine atoms on the C 78 cage corresponds to a partial retention of the conjugated double bond systems and the formation of isolated C−C double bonds. Evidently, even a separation of the C 2 v and D 3 isomers of C 78 occurred in the course of bromination and precipitation. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)