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  3. STRUCTURE OF DIMETHYL 9-CHLORO-9,10-DIHYDRO-9,10-ETHENOANTHRACENE-11,12-DICARBOXYLATE

STRUCTURE OF DIMETHYL 9-CHLORO-9,10-DIHYDRO-9,10-ETHENOANTHRACENE-11,12-DICARBOXYLATE

TitleSTRUCTURE OF DIMETHYL 9-CHLORO-9,10-DIHYDRO-9,10-ETHENOANTHRACENE-11,12-DICARBOXYLATE
Publication TypeJournal Article
Year of Publication1993
AuthorsTrotter, J, Yee, VC
JournalActa Crystallographica Section C-Crystal Structure Communications
Volume49
Pagination846-848
Date PublishedApr
Type of ArticleArticle
ISBN Number0108-2701
KeywordsCRYSTAL-STRUCTURES, SOLID-STATE PHOTOCHEMISTRY
Abstract

The two ester groups have different orientations, with C=C-C=O torsion angles of -165.7(3) and -89.4(4)degrees respectively for the groups remote from and adjacent to the Cl substituent. The remote ester group is therefore fully conjugated with the C=C double bond [cos2(angle) = 0.94] and the adjacent group nonconjugated [cos2(angle) = 0], presumably as a result of steric effects.
URL<Go to ISI>://A1993LA19300076