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Structures and photochemistry of inclusion compounds of 9,10-dihydro-9,10-ethenoanthracene-11,12-bis(diphenylphosphine oxide)

TitleStructures and photochemistry of inclusion compounds of 9,10-dihydro-9,10-ethenoanthracene-11,12-bis(diphenylphosphine oxide)
Publication TypeJournal Article
Year of Publication1997
AuthorsFu, TY, Liu, ZQ, Olovsson, G, Scheffer, JR, Trotter, J
JournalActa Crystallographica Section B-Structural Science
Volume53
Pagination293-299
Date PublishedApr
Type of ArticleArticle
ISBN Number0108-7681
KeywordsPHOTOREARRANGEMENT
Abstract

Inclusion complexes of 9,10-dihydro-9,10-ethenoanthracene-11,12-bis(diphenylphosphine oxide) (1) as host are synthesized using a variety of guest solvent molecules and the photochemistry of the host molecule is studied in solution and in the crystalline complexes. The crystal structures of four complexes are determined and correlated with their photochemical reactivity. In each case only one dibenzosemibullvalene photoproduct is obtained in the photolysis. Since three of the complexes studied crystallize in the chiral space group P2(1)2(1)2(1), irradiation of single crystals produces a chiral photoproduct in >90% enantiomeric excess. Determination of the absolute configurations of reactants and products allows elucidation of the key structural features that control the enantiospecific solid-state photorearrangements.

URL<Go to ISI>://A1997WV45600010