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Updated: Jun 5, 2026

Preparation of Enantiopure Non-Activated Aziridines and Synthesis of Biemamide B, D, and epiallo-Isomuscarine
Published on: June 13, 2022
1-Hydroxymethyl-1-methylethan-aminium chloride.
Yu-Feng Li1, Mei-Li Feng, Shan Liu
1Department of Applied Chemistry, College of Science, Nanjing University of Technology, Nanjing 210009, People's Republic of China.
This study details the crystal structure of a compound containing two independent ion pairs. Analysis reveals intramolecular and intermolecular hydrogen bonds forming specific ring structures within the crystal lattice.
Area of Science:
- Crystallography
- Chemical Physics
- Materials Science
Background:
- Understanding the three-dimensional arrangement of atoms and molecules in crystalline solids is crucial for predicting material properties.
- Hydrogen bonding plays a significant role in molecular self-assembly and crystal packing.
Purpose of the Study:
- To elucidate the crystal structure of the title compound, C(4)H(12)NO(+)·Cl(-).
- To identify and characterize intra-molecular and inter-molecular hydrogen bonding interactions.
- To describe the conformational aspects of the resulting ring systems.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the crystal structure.
- Analysis of hydrogen bonding networks and ring conformations was performed.
Main Results:
- The asymmetric unit contains two independent ion pairs of the title compound.
- Weak intramolecular C-H⋯O and N-H⋯O hydrogen bonds form three five-membered rings with envelope conformations.
- Intermolecular hydrogen bonds, including O-H⋯Cl, N-H⋯O, N-H⋯Cl, and O-H⋯O, were identified, contributing to the overall crystal structure.
Conclusions:
- The crystal structure is stabilized by a network of intra- and intermolecular hydrogen bonds.
- The specific hydrogen bonding patterns dictate the formation of five-membered rings with defined conformations.
- This detailed structural information provides a basis for understanding the compound's physical and chemical properties.
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