InChI=1/C14H12/c1-2-7-13(8-3-1)11-6-12-14-9-4-5-10-14/h1-12H/b11-6 [(1E)-3-cyclopenta-2,4-dien-1-ylideneprop-1-en-1-yl]benzene benzene, [(1E)-3-(2,4-cyclopentadien-1-ylidene)-1-propenyl]-