Polymorphic form II of 4,4 '-methylenebis(benzenesulfonamide)

Thomas Gelbrich, Mairi F. Haddow, Ulrich J. Griesser

Research output: Contribution to journalArticle (Academic Journal)peer-review

1 Citation (Scopus)


In the title compound, C13H14N2O4S2 (alternative names: diphenylmethane-4,4'-disulfonamide, nirexon, CRN: 535-66-0), the two benzene rings form a dihedral angle of 70.8 (1)degrees. There are two sets of shorter (H center dot center dot center dot O < 2.1 angstrom ) and longer (H center dot center dot center dot O > 2.4 angstrom) N-H center dot center dot center dot O hydrogen bonds per sulfonamide NH2 group, which together result in hydrogen-bonded sheets parallel (102). Adjacent sheets are connected to one another by an additional N-H center dot center dot center dot N interaction so that a three-dimensional network of hydrogen-bonded molecules is formed. The investigated polymorph is identical with the form II previously described by Kuhnert-Brandstatter & Moser [(1981). Mikrochim. Acta, 75, 421-440].

Original languageEnglish
Pages (from-to)O1619-U977
Number of pages10
JournalActa Crystallographica Section E: Structure Reports Online
Publication statusPublished - Jul 2010


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