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Updated: Jun 1, 2026
19:58
Palladium N-Heterocyclic Carbene Complexes: Synthesis from Benzimidazolium Salts and Catalytic Activity in Carbon-carbon Bond-forming Reactions
Published on: July 30, 2017
N,N-Dibenzyl-4-methyl-benzene-sulfonamide
Summary
This study details the crystal structure of C(21)H(21)NO(2)S, revealing two similar molecules in the asymmetric unit. Intermolecular C-H⋯O interactions form chains, while benzyl groups prevent direct pi-pi stacking.
Area of Science:
- Crystallography
- Supramolecular Chemistry
- Organic Chemistry
Background:
- Understanding molecular packing and interactions is crucial in crystal engineering.
- The compound C(21)H(21)NO(2)S presents an interesting case for studying intermolecular forces.
- Previous studies on similar structures provide context for the observed molecular arrangement.
Purpose of the Study:
- To elucidate the crystal structure of C(21)H(21)NO(2)S.
- To analyze the conformational preferences and intermolecular interactions within the crystal lattice.
- To investigate the role of C-H⋯O interactions in supramolecular assembly.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
- Conformational analysis was performed on the independent molecules.
- Intermolecular interactions, specifically C-H⋯O hydrogen bonds, were identified and characterized.
Main Results:
- The asymmetric unit contains two molecules of C(21)H(21)NO(2)S with similar conformations.
- Benzene rings of the nitrogen-bound benzyl groups are oriented to prevent π-π interactions.
- Intermolecular C-H⋯O interactions facilitate the formation of supramolecular chains along the b-axis.
Conclusions:
- The crystal structure of C(21)H(21)NO(2)S is characterized by specific intermolecular C-H⋯O interactions.
- These interactions lead to the formation of one-dimensional supramolecular chains.
- The molecular conformation and arrangement preclude π-π stacking between the benzyl groups.
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