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A monoclinic polymorph of cysteamine hydro-chloride.


ABSTRACT: THE TITLE COMPOUND (SYSTEMATIC NAME: 2-mercaptoethan-aminium chloride), C(2)H(8)NS(+)·Cl(-), the hydro-chloride salt of cysteamine, in contrast to the previously reported triclinic polymorph [Kim et al. (2002 ?). Polyhedron, 21, 225-228], crystallized in the monoclinic crystal system. In the crystal, the cysteaminium cations are linked to the chloride anions via one S-H?Cl and three N-H?Cl hydrogen bonds. Two-dimensional slab-like networks are formed, which are stacked in [100]. This arrangement is similar to that observed in the triclinic polymorph.

SUBMITTER: Ahmad S 

PROVIDER: S-EPMC2980242 | biostudies-other | 2009

REPOSITORIES: biostudies-other

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A monoclinic polymorph of cysteamine hydro-chloride.

Ahmad Saeed S   Shaheen Muhammad Ashraf MA   Stoeckli-Evans Helen H  

Acta crystallographica. Section E, Structure reports online 20091212 Pt 1


<h4>The title compound (systematic name</h4>2-mercaptoethan-aminium chloride), C(2)H(8)NS(+)·Cl(-), the hydro-chloride salt of cysteamine, in contrast to the previously reported triclinic polymorph [Kim et al. (2002 ▶). Polyhedron, 21, 225-228], crystallized in the monoclinic crystal system. In the crystal, the cysteaminium cations are linked to the chloride anions via one S-H⋯Cl and three N-H⋯Cl hydrogen bonds. Two-dimensional slab-like networks are formed, which are stacked in [100]. This arra  ...[more]

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