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What Difference Does a Methyl Group Make: Pentamethylbenzene?
Author(s) -
Mudge Matthew,
Ng Boon K.,
Onie Catherine Jessica,
Bhadbhade Mohan,
Mole Richard A.,
Rule Kirrily C.,
Stampfl Anton P. J.,
Stride John A.
Publication year - 2014
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201402538
Subject(s) - hexamethylbenzene , chemistry , tetracyanoethylene , synchrotron radiation , methyl group , group (periodic table) , crystal structure , inelastic neutron scattering , crystallography , scattering , chemical physics , neutron scattering , computational chemistry , molecular physics , photochemistry , organic chemistry , physics , nuclear physics , optics , benzene
Abstract The crystal structure of pentamethylbenzene has been obtained for the first time with the use of synchrotron radiation, whilst the low‐energy spectrum of lattice dynamics, dominated by the methyl group torsions, was obtained using inelastic neutron scattering. The effect of symmetry lowering by the removal of a single methyl group relative to hexamethylbenzene has been investigated, including the role that this plays in the charge‐transfer characteristics of complexes formed with tetracyanoethylene.