Dibenzyl 3,3',4,4'-tetra-methyl-5,5'-(ethynedi-yl)bis-(pyrrole-2-carboxyl-ate)

Hillary K Tanui; Frank R Fronczek; M Graça H Vicente

doi:10.1107/S1600536807061739

Dibenzyl 3,3',4,4'-tetra-methyl-5,5'-(ethynedi-yl)bis-(pyrrole-2-carboxyl-ate)

Acta Crystallogr Sect E Struct Rep Online. 2007 Dec 6;64(Pt 1):o75. doi: 10.1107/S1600536807061739.

Authors

Hillary K Tanui¹, Frank R Fronczek, M Graça H Vicente

Affiliation

¹ Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803-1804, USA.

Abstract

The title mol-ecule, C(30)H(28)N(2)O(4), has crystallographic twofold rotation symmetry, with the pyrrole planes forming a dihedral angle of 40.49 (4)°. The pyrrole N-H donor and adjacent ester carbonyl acceptor form R(2) (2)(10) hydrogen-bonded rings about inversion centers, leading to chains of hydrogen-bonded mol-ecules along [001].