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4-[2,4,6-tris(1-methylethyl)benzoyl]benzoic acid (S)-(-)-proline

Title4-[2,4,6-tris(1-methylethyl)benzoyl]benzoic acid (S)-(-)-proline
Publication TypeJournal Article
Year of Publication1997
AuthorsFu, TY, Scheffer, JR, Trotter, J
JournalActa Crystallographica Section C-Crystal Structure Communications
Volume53
Pagination1259-1262
Date PublishedSep
Type of ArticleArticle
ISBN Number0108-2701
Keywords2, 4, 6-TRIISOPROPYLBENZOPHENONES, CRYSTAL-STRUCTURES, SOLID-STATE PHOTOCHEMISTRY
Abstract

The title compound, C23H28O3.C5H9NO2, is a 1:1 complex of the benzoic acid derivative and the (S)-proline zwitterion, with two formula units in the asymmetric unit (with pseudo-symmetry relationships between the separate components). The ketone carbonyl group in each benzoic acid molecule deviates slightly from a position normal to the plane of the triisopropylphenyl ring; the deviations (of about 16 degrees) are in opposite senses in the two molecules, so that the molecules have opposite conformational chiralities, leading to a nearly racemic photoproduct on solid-state photolysis.

URL<Go to ISI>://A1997XZ62700042