%0 Journal Article
%T 6-Ethoxycarbonyl-5,7-dihydroxy-2,3-dihydro-1H-pyrido[3,2,1-ij]quinolinium tribromide
%A Victor B. Rybakov
%A Svitlana V. Shishkina
%A Igor V. Ukrainets
%A Nikolai Yu. Golik
%J Acta Crystallographica Section E
%D 2013
%I International Union of Crystallography
%R 10.1107/s1600536812049276
%X In the title salt, C15H16NO4+.Br3 , classical intramolecular O¡ªH...O hydrogen bonds are found, which results in the co-planarity of the ester substituents with the quinolinium residue [C¡ªC¡ªC¡ªO torsion angle = 1.0 (10)¡ã]. The bromine anions are placed on both sides of heterocyclic cation and form Br...N contacts of 3.674 (9) and 3.860 (9)  , which confirms the location of positive charge on the N atom. Non-classical intermolecular C¡ªH...Br interactions stabilize the three-dimensional crystal structure. Moreover, anion...¦Ð interactions are noted [Br...ring centroid range = 3.367 (9)¨C3.697 (9)  ]. The partly saturated heterocycle is disordered over two sofa conformations with occupancies in the ratio 0.56 (2):0.44 (2).
%U http://scripts.iucr.org/cgi-bin/paper?S1600536812049276