title: Bis(1-tosyl-2-pyrrol-yl)ethyne.
abstract: The title mol-ecule, C(24)H(20)N(2)O(4)S(2), has crystallographic inversion symmetry with a triple-bond distance of 1.206 (2) Å. The alkyne is not quite linear, with a C-C C angle of 175.78 (16)°. The planar pyrrole rings are parallel but offset from coplanarity by 0.318 (1) Å. The conformation of the sulfonyl group with respect to the pyrrole ring is such that an O atom is nearly eclipsed with this ring, having an O-S-N-C torsion angle of 3.48 (11)°. C-H⋯O inter-actions [C⋯O 3.278 (2) Å, 136° about H] between pyrrole H and sulfonyl O atoms lead to the formation of ladder-like chains.
authors.affiliation: Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803-1804, USA.
authors.forename: Hillary K
authors.initials: HK
authors.lastname: Tanui
authors.forename: Frank R
authors.initials: FR
authors.lastname: Fronczek
authors.forename: M Graça H
authors.initials: MG
authors.lastname: Vicente