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Updated: Jun 6, 2026

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
Published on: February 7, 2017
Polymorphism in 2-(4-hydroxy-2,6-dimethylanilino)-5,6-dihydro-4H-1,3-thiazin-3-ium chloride
Julio Gutierrez1, Rodney Eisenberg, Gabrielle Herrensmith
1Maxwell H. Gluck Equine Center, University of Kentucky, Lexington, KY 40546, USA.
Abstract:
Details of the structures of two conformational polymorphs of the title compound, C(12)H(17)N(2)OS(+)·Cl(-), are reported. In form (I) (space group P-1), the two N-H groups of the cation are in a trans conformation, while in form (II) (space group P2(1)/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 R(4)(2)(18) (N-H...Cl and O-H...Cl) hydrogen-bonded rings and R(2)(2)(18) (N-H...O) hydrogen-bonded rings. In form (II), the chains are formed by centrosymmetric R(4)(2)(18) (N-H...Cl and O-H...Cl) hydrogen-bonded rings and by R(4)(2)(12) (N-H...Cl) hydrogen-bonded rings.
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