AdGif-UNREGIST Kekule Structure -Proposed in 1866 by Friedrich Kekule, shortly after multiple bonds were suggested. -Failed to explain existence of only one isomer of 1.2-dichlorobenzene. all C-C bond double bond lengths 1.397A 1.34A single bond 1.48A resonance representation bond order=l片 butadiene combined representation Copyright 2010 Pearson Prentice Hall,Inc.KekuléStructure ▪Proposed in 1866 by Friedrich Kekulé, shortly after multiple bonds were suggested. ▪Failed to explain existence of only one isomer of 1,2-dichlorobenzene