%0 Journal Article %T (1S,8R,15S,19R)-17-Benzyl-17-azapentacyclo[6.6.5.02,7.09,14.015,19]nonadeca-2(7),3,5,9(14),10,12-hexaene chloroform monosolvate %A Ielyzaveta Bratko %A Sonia Ladeira %A Nathalie Saffon %A Emmanuelle Teuma %J Acta Crystallographica Section E %D 2012 %I International Union of Crystallography %R 10.1107/s1600536812037749 %X In the title compound, C25H23N¡¤CHCl3, the dihydroanthracene unit is bent with a dihedral angle between the benzene rings of 57.82 (8)¡ã. The N atom of the pyrrolidine heterocycle, which has an envelope conformation with the N atom as the flap, exhibits a pronounced pyramidalization [¦²(C¡ªN¡ªC) = 328.07¡ã], indicating an accentuated N-donor character. In the crystal, this behaviour is evident by the C¡ªH...N hydrogen bond involving a solvent molecule and the N atom. The absolute configuration at the C-atom fused positions of the pyrrolidine group were crystallographically confirmed to be S and R. %U http://scripts.iucr.org/cgi-bin/paper?S1600536812037749