Abstract
Diels-Alder reaction between maleimides featuring 3,5-di-, 2,4,6-tri- and pentafluorinated N-phenyl substituents and anthracene yields the corresponding pentacyclic ethanoanthracenedicarboximide compounds, namely N-(3,5-difluorophenyl)-9,10-dihydro-9,10-ethanoanthracene-11,12-dicarboximide, C(24)H(15)F(2)NO(2), (IIa), N-(2,4,6-trifluorophenyl)-9,10-dihydro-9,10-ethanoanthracene-11,12-dicarboximide, C(24)H(14)F(3)NO(2), (IIb), N-(2,3,4,5,6-pentafluorophenyl)-9,10-dihydro-9,10-ethanoanthracene-11,12-dicarboximide, C(24)H(12)F(5)NO(2), (IIc). The crystal structures of (IIa)-(IIc) reveal an expected molecular geometry with a `V'-shape of the anthracene-derived tricyclic moiety. The crystal packings of (IIa) and (IIb) are dominated by π-π and C-H···O/F interactions, while F···F and C-H···π contacts are absent. In contrast, (IIc) shows F···F and C-H···O/F contacts, but no π-involved contacts of relevance.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Acta Crystallographica Section C Crystal Structure Communications
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
