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Quantum chemical modeling of the addition reactions of 1‐n‐phenylpropyl radicals to C 60 fullerene
Author(s) -
Diniakhmetova Diana Radikovna,
Friesen Anna Konstantinovna,
Kolesov Sergey Viktorovich
Publication year - 2016
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.25071
Subject(s) - radical , chemistry , fullerene , regioselectivity , density functional theory , computational chemistry , polymerization , fullerene chemistry , photochemistry , organic chemistry , catalysis , polymer
Modeling of the addition of various radicals to C 60 fullerene is currently an active research area. However, the radicals considered are not able to adequately model polymeric radicals. In this work, we have performed a theoretical study of the possible reactions of C 60 fullerene with 1‐n‐phenylpropyl radicals, which are used to model polystyrene radicals. Several possible ways of subsequent addition of up to four 1‐phenylpropyl radicals to C 60 have been analyzed, the structures of the intermediates have been defined and thermal properties, such as the activation enthalpies of the corresponding reactions, have been calculated using density functional theory with the approximation of PBE/3z. It is shown that the topology of the spin density distribution on the fullerenyl radical causes regioselectivity for further radical addition. According to the energetic characteristics of the reactions, we assume the possibility of formation of products of one‐, two‐, three‐, and four‐ addition of the growth radical to the fullerene core in radical polymerization of styrene in the presence of C 60 fullerene. © 2016 Wiley Periodicals, Inc.