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Published on: June 10, 2018
N-(2,6-Diisopropyl-phen-yl)formamide.
Acta Crystallographica. Section E, Structure Reports Online
|January 5, 2011
Summary
This study reveals a unique, highly non-planar molecular structure in a novel formamide compound. The research highlights the largest known dihedral angle in formamides, impacting crystal packing and intermolecular interactions.
Area of Science:
- Organic Chemistry
- Crystallography
- Supramolecular Chemistry
Background:
- Formamides are versatile organic compounds with diverse applications.
- Understanding molecular geometry is crucial for predicting chemical and physical properties.
- Previous studies have characterized various formamide structures, but extreme non-planarity remains underexplored.
Purpose of the Study:
- To synthesize and characterize a novel formamide derivative.
- To investigate the three-dimensional molecular structure and conformation.
- To determine the extent of non-planarity and its implications for crystal packing.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the precise molecular structure.
- Analysis of bond lengths, bond angles, and dihedral angles provided conformational details.
- Hydrogen bonding interactions were identified and analyzed.
Main Results:
- The title compound, C(13)H(19)NO, was synthesized and structurally characterized.
- A significant dihedral angle of 77.4° was observed between the 2,6-diisopropyl-phenyl ring and the formamide group.
- This represents the largest dihedral angle documented for structurally characterized formamides.
- Infinite chains were formed through N-H⋯O hydrogen bonds along the b-axis.
Conclusions:
- The synthesized formamide exhibits an exceptionally non-planar structure.
- The observed large dihedral angle influences intermolecular interactions and crystal assembly.
- This finding expands the known structural diversity of formamide derivatives.

