【摘 要】
：
In the title compound, C 27 H 16 O, M r =356.42, orthorhombic, Pbcn, a=22.549(6), b=10.738(4), c=7.316(5), V=1771(2) 3, Z=4, D calc
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In the title compound, C 27 H 16 O, M r =356.42, orthorhombic, Pbcn, a=22.549(6), b=10.738(4), c=7.316(5), V=1771(2) 3, Z=4, D calc =1 336g/cm 3, F(000)=744, μ (Mo Kα )=0.08mm -1 and final R=0.041, R w =0.045 for 1009 reflections( I≥3.00σ(I )). The molecular structure of 7,9 diphenyl 8H cyclopentacenaphthylen 8 one(acecyclone) is symmetrical and each atom except two benzene rings lies approximately in the same plane.
In the title compound, C 27 H 16 O, M r = 356.42, orthorhombic, Pbcn, a = 22.549 (6), b = 10.738 (4), c = 7.316 , D = 1 336 g / cm 3, F (000) = 744, μ (Mo Kα) = 0.08 mm -1 and final R = 0.041, R w = 0.045 for 1009 reflections (I≥3.00σ I)). The molecular structure of 7,9 diphenyl 8H cyclopentacenaphthylen 8one (acecyclone) is symmetrical and each atom except two benzene rings only approximately the same plane.
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