title: Capturing C84 isomers as chlorides and pentafluoroethyl derivatives: C84Cl22 and C84(C2F5)12.
abstract: A mixture of higher fullerenes C(76)-C(96) was pentafluoroethylated with C(2)F(5)I at 250 °C affording a mixture of C(2)F(5) derivatives. After separation with high-performance liquid chromatography, the second C(2)F(5) derivative of C(84)(16), C(84)(C(2)F(5))(12), was investigated by X-ray crystallography and compared with the known isomer in terms of addition patterns and formation energies. Chlorination of a C(84) isomeric mixture with VCl(4) at 350-400 °C resulted in the formation of C(84)Cl(22). X-ray diffraction study revealed the superposition of several C(84)Cl(22) molecules with different isomeric C(84) cages but the same chlorination pattern.
authors.affiliation: Chemistry Department, Moscow State University, Leninskie Gory, 119991 Moscow, Russia.
authors.forename: Maria A
authors.initials: MA
authors.lastname: Lanskikh
authors.forename: Nadezhda B
authors.initials: NB
authors.lastname: Tamm
authors.forename: Lev N
authors.initials: LN
authors.lastname: Sidorov
authors.forename: Sergey I
authors.initials: SI
authors.lastname: Troyanov