Acta Crystallographica Section B

Structural Science

Volume 53, Part 2 (April 1997)

research papers

Acta Cryst. (1997). B53, 300-305 [ doi:10.1107/S0108768196013614 ]

Structures and Photochemistry of Inclusion Compounds of 9,10-Dihydro-9,10-ethenoanthracene-11,12-bis(diphenylmethanol)

T. Y. Fu, J. R. Scheffer and J. Trotter

Abstract: Crystal structures have been determined for inclusion complexes of the host molecule 9,10-dihydro-9,10-ethenoanthracene-11,12-bis(diphenylmethanol), with acetone, ethanol and toluene as guest solvent molecules. The host molecule exhibits an intramolecular O--HO hydrogen bond in each of the complexes, with intermolecular hydrogen bonds to the acetone and ethanol guests. Different photoproducts are obtained from solution and solid-state photolyses; the solid-state reaction involves a relatively small amount of molecular rearrangement, for which a mechanism is proposed.