Open AccessOrthorhombic and monoclinic polymorphs of 1,3,5‐triphenylperhydro‐1,3,5‐triazine‐2,4,6‐trione at 120 K: chains and sheets formed by C—H⋯π(arene) hydrogen bonds
Author(s) -
Mariyatra M. Baby,
Panchanatheswaran Krishnaswamy,
Low John N.,
Glidewell Christopher
Publication year - 2004
Publication title -
acta crystallographica section c
Language(s) - English
Resource type - Journals
eISSN - 1600-5759
pISSN - 0108-2701
DOI - 10.1107/s0108270104017342
Subject(s) - monoclinic crystal system , orthorhombic crystal system , crystallography , hydrogen bond , chemistry , group (periodic table) , triazine , stereochemistry , crystal structure , molecule , polymer chemistry , organic chemistry
The title compound, C 21 H 15 N 3 O 3 , crystallizes in two polymorphic forms. In the orthorhombic polymorph, (I), in space group Fdd 2 with Z ′ = 1, the molecules lie in general positions, while in the monoclinic polymorph, (II), in space group C 2/ c with Z ′ = , the molecules lie across twofold rotation axes. In each polymorph, the molecules are linked by a single C—H⋯π(arene) hydrogen bond, forming chains in polymorph (I) and sheets in (II).