Diethyl 2,6-(2,4-dichlorophenyl)-4,8-dioxo-2,3,6,7-tetrahydro-1<i>H</i>,5<i>H</i>- 2,3a,4a,6,7a,8a-hexaazacyclopenta[def]fluorene-8b,8c-dicarboxylate

C₂₈H₂₈Cl₄N₆O₆

Ding, Jiao-yangRen, Xiao-jieZhu, Yan-pingShe, Neng-fangWu, An-Xin

Acta Crystallographica Section E (2009) 65, 4 o674

a=10.0030(11)Å   b=27.1742(15)Å   c=11.2427(2)Å

α=90.00°   β=93.716(4)°   γ=90.00°