Extended barbaralanes: sigmatropic shiftamers or sigma-polyacenes?
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.
Tantillo
Dean J
DJ
Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York, USA. tantillo@chem.ucdavis.edu
Hoffmann
Roald
R
Houk
Kendall N
KN
Warner
Philip M
PM
Brown
Eric C
EC
Henze
Daven K
DK