title: Extended barbaralanes: sigmatropic shiftamers or sigma-polyacenes?
abstract: Starting from fused barbaralanes, we come (theoretically) to a new class of delocalized molecules in which two polyenyl radical chains interact with each other through space in a bonding way, but do not form full sigma-bonds. These molecules resemble sigma-homologues of polyacenes and are bishomoaromatic.
authors.affiliation: Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York, USA. tantillo@chem.ucdavis.edu
authors.forename: Dean J
authors.initials: DJ
authors.lastname: Tantillo
authors.forename: Roald
authors.initials: R
authors.lastname: Hoffmann
authors.forename: Kendall N
authors.initials: KN
authors.lastname: Houk
authors.forename: Philip M
authors.initials: PM
authors.lastname: Warner
authors.forename: Eric C
authors.initials: EC
authors.lastname: Brown
authors.forename: Daven K
authors.initials: DK
authors.lastname: Henze