Polymorphism in 2-(4-hydroxy-2,6-dimethylanilino)-5,6-dihydro-4H-1,3- thiazin-3-ium chloride

Julio Gutierrez, Rodney Eisenberg, Gabrielle Herrensmith, Thomas Tobin, Tonglei Li, Sihui Long

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Details of the structures of two conformational polymorphs of the title compound, C12H17N2OS+·Cl -, are reported. In form (I) (space group P1̄), the two N - H groups of the cation are in a trans conformation, while in form (II) (space group P21/c), they are in a cis arrangement. This results in different packing and hydrogen-bond arrangements in the two forms, both of which have extended chains lying along the a direction. In form (I), these chains are composed of centrosymmetric R42(18) (N - H⋯Cl and O - H⋯Cl) hydrogen-bonded rings and R4 2(18) (N - H⋯O) hydrogen-bonded rings. In form (II), the chains are formed by centrosymmetric R42(18) (N - H⋯Cl and O - H⋯Cl) hydrogen-bonded rings and by R4 2(12) (N - H⋯Cl) hydrogen-bonded rings.

Original languageEnglish
Pages (from-to)o593-o595
JournalActa Crystallographica Section C: Crystal Structure Communications
Issue number12
StatePublished - Dec 2010

ASJC Scopus subject areas

  • General Biochemistry, Genetics and Molecular Biology


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