Mephentermine hemisulfate monohydrate: an adrenergic agent

Area of Science:

• Crystallography
• Chemical Physics
• Molecular Structure

Background:

• Phenethylamine derivatives are important in medicinal chemistry.
• Understanding the solid-state structure of such compounds is crucial for predicting their properties.
• The specific molecule studied is ethyl(2-methyl-1-phenyl-2-propyl)ammonium hemisulfate hydrate.

Purpose of the Study:

• To elucidate the crystal structure of ethyl(2-methyl-1-phenyl-2-propyl)ammonium hemisulfate hydrate.
• To analyze the molecular conformation and intermolecular interactions within the crystal lattice.
• To provide a detailed crystallographic description of this phenethylamine derivative.

Main Methods:

• Single-crystal X-ray diffraction was employed to determine the crystal structure.
• Analysis of the asymmetric unit and molecular geometry was performed.
• Identification of hydrogen bonding networks and packing arrangements was conducted.

Main Results:

• The crystal structure revealed two symmetry-independent molecules in the asymmetric unit.
• The phenethylamine skeleton was observed with a protonated nitrogen atom.
• The ethylamine side chain adopted an extended conformation, with specific N-benzene ring distances reported (5.1 Å and 5.3 Å).
• The crystal packing is stabilized by N-H...O and O-H...O hydrogen bonds.

Conclusions:

• The study provides a comprehensive crystallographic characterization of ethyl(2-methyl-1-phenyl-2-propyl)ammonium hemisulfate hydrate.
• The observed molecular conformation and hydrogen bonding patterns offer insights into the solid-state behavior of this compound.
• This structural data can serve as a reference for further studies on related phenethylamine derivatives.