%T Unexpected nonplanar quinoidal substructure in an abietane terpene from Salvia candelabrumâan ab initio computational search for the simplest substitution pattern causing the nonplanarity %D 2005 %R 1329817 %V 717 %L publicatio2101 %I szte %J Journal of Molecular Structure: THEOCHEM %A PĂĄlinkĂł IstvĂĄn %A ForgĂł PĂŠter %P 153-155 %N 1-3