Abstract
The title compound, C24H18, crystallizes in the monoclinic space groupP21/c with cell parametersa=16.382(10),b=6.360(3),c=18.051(11) A, β=116.6(1) °,Z=4,V=1695.6 A3. The structure was solved by direct methods and refined using least-squares procedures to a finalR of 0.097 for 811 observed (I>2σ1) structure magnitudes. The variables refined were the fractional coordinates of all atoms and the individual isotropic temperature factors of the nonhydrogen atoms. The highly strained molecule has single carbon-carbon bond distances of 1.47–1.59 A, and bond angles between 59 and 136 °.
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