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Updated: Jun 1, 2026

Continuous Flow Chemistry: Reaction of Diphenyldiazomethane with p-Nitrobenzoic Acid
Published on: November 15, 2017
(m-Phenyl-enedimethyl-ene)diammonium dichloride.
1Department of Chemistry and Biology, Xiangfan University, Xiangfan 441053, People's Republic of China.
This study details the crystal structure of a new compound, revealing a 3D hydrogen-bonding network between ammonium groups and chloride ions. This network is crucial for stabilizing the overall crystal packing arrangement.
Area of Science:
- Crystallography
- Materials Science
- Chemical Physics
Background:
- Understanding molecular interactions is key to designing new materials.
- Crystal structure analysis provides fundamental insights into chemical bonding and stability.
Purpose of the Study:
- To elucidate the crystal structure of the title compound, C(8)H(14)N(2) (2+)·2Cl(-).
- To investigate the intermolecular interactions, specifically hydrogen bonding, within the crystal lattice.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
- Analysis of atomic positions and bond lengths/angles to understand molecular geometry and interactions.
Main Results:
- The asymmetric unit contains 1.5 dications and 3 chloride anions, with molecular symmetry completing the structure.
- The ammonium groups exhibit a trans conformation relative to the benzene ring.
- A 3D hydrogen-bonding network (N-H⋯Cl) was identified between ammonium groups and chloride anions.
Conclusions:
- The crystal structure is stabilized by an extensive three-dimensional N-H⋯Cl hydrogen-bonding network.
- The observed conformation and hydrogen bonding are critical factors in the compound's crystal packing and stability.
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