title: Accurate calculation of aromaticity of benzene and antiaromaticity of cyclobutadiene: new homodesmotic reactions.
abstract: Newly designed homodesmotic reactions based on radical systems predict an absolute aromaticity of 29.13 kcal/mol for benzene and an absolute antiaromaticity of 40.28 kcal/mol for cyclobutadiene at the MP4(SDQ)/6-31G(d,p) level.
authors.affiliation: Graduate School of Human Informatics, Nagoya University, Chikusa-ku, Nagoya 464-8601, Japan.
authors.forename: Cherumuttathu H
authors.initials: CH
authors.lastname: Suresh
authors.forename: Nobuaki
authors.initials: N
authors.lastname: Koga