1304624-28-9Relevant articles and documents
Polymorphism in 2-(4-hydroxy-2,6-dimethylanilino)-5,6-dihydro-4H-1,3- thiazin-3-ium chloride
Gutierrez, Julio,Eisenberg, Rodney,Herrensmith, Gabrielle,Tobin, Thomas,Li, Tonglei,Long, Sihui
, p. o593-o595 (2010)
Details of the structures of two conformational polymorphs of the title compound, C12H17N2OS+·Cl -, are reported. In form (I) (space group P1), 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.