A high-pressure polymorph of chlorpropamide formed on hydrostatic compression of the α-form in saturated ethanol solution

Y. V. Seryotkin, T. N. Drebushchak and E. V. Boldyreva

The crystal structure of a high-pressure monoclinic polymorph (P2₁11) of chlorpropamide has been determined. It is formed at ∼ 2.8 GPa on hydrostatic compression of the orthorhombic stable α-polymorph (P2₁2₁2₁) in saturated ethanol solution.

Keywords: polymorphism; high pressure; chlorpropamide; molecular conformations; hydrogen bonds; twinning.

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