Acta Cryst. (2005). E61, o616-o618  [ doi:10.1107/S1600536805002126 ]

3,6-Di-2-pyridylpyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione

T. Imoda, T. Hirota, H. Takahashi and J. Mizuguchi

Abstract: The title compound, C₁₆H₁₀N₄O₂, is an organic red pigment utilized for H₂ gas sensors. The asymmetric unit contains two half-molecules, each molecule being centrosymmetric. The two independent centrosymmetric diketopyrrolopyrrole moieties are connected by N-HN hydrogen bonds to form a ribbon structure along [100]. The molecules are stacked in a `hunter's fence' fashion (viz. when viewed from the side, molecles, slipped by about 70° within moleclar stacks, cross each other in a fence-like structure) along the b axis.

Online 12 February 2005

Copyright © International Union of Crystallography
IUCr Webmaster