%0 Journal Article
%T 10,11,12,13-Tetrahydro-4,5,9,14-tetraazadibenz[a,c]anthracene¨Cbenzene-1,4-dicarboxylic acid (2/1)
%A Chun-Bo Liu
%A Jian Wang
%A Xiu-Ying Li
%A Guang-Bo Che
%J Acta Crystallographica Section E
%D 2008
%I International Union of Crystallography
%R 10.1107/s1600536808027785
%X In the title adduct, 2C18H14N4¡¤C8H6O4, the centrosymmetric 1,4-benzenedicarboxylic acid molecule makes two O¡ªH...¡¤N hydrogen bonds to adjacent 10,11,12,13-tetrahydro-4,5,9,14-tetraazadibenzo[a,c]anthracene (TTBT) molecules. Aromatic ¦Ð¨C¦Ð stacking interactions occur between TTBT rings [centroid¨Ccentroid distance = 3.570 (3)  ], leading to a two-dimensional supramolecular structure in the crystal.
%U http://scripts.iucr.org/cgi-bin/paper?S1600536808027785