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Protocol for the Synthesis of Ortho-trifluoromethoxylated Aniline Derivatives
Published on: January 19, 2016
tert-Butyl 2-(4-nitro-phen-oxy)acetate.
The crystal structure of C(12)H(15)NO(5) reveals a near-planar nitro-phenoxy group. This molecule exhibits significant π-π stacking and weak C-H⋯O hydrogen bonding in its solid state.
Area of Science:
- Crystallography
- Molecular structure analysis
- Supramolecular chemistry
Background:
- Understanding molecular interactions in the solid state is crucial for material science.
- Crystal packing influences the physical and chemical properties of molecules.
- Nitro-aromatic compounds and esters are important functional groups in organic chemistry.
Purpose of the Study:
- To elucidate the crystal structure of the title molecule C(12)H(15)NO(5).
- To analyze the molecular conformation and intermolecular interactions within the crystal lattice.
- To investigate potential π-π stacking and hydrogen bonding networks.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the three-dimensional structure.
- Analysis of bond lengths, bond angles, and torsion angles provided conformational details.
- Intermolecular interactions, including π-π stacking and hydrogen bonds, were identified and quantified.
Main Results:
- The nitro-phenoxy moiety was found to be approximately planar (r.m.s. deviation = 0.034 Å).
- A dihedral angle of 84.8(1)° was observed between the nitro-phenoxy group and the -CH(2)-C(=O)-O-C fragment.
- Significant π-π stacking interactions were identified between adjacent benzene rings with a centroid-centroid distance of 3.6806(10) Å.
- Weak intermolecular C-H⋯O hydrogen bonds were also observed, contributing to the crystal packing.
Conclusions:
- The crystal structure of C(12)H(15)NO(5) is characterized by a specific molecular conformation and significant intermolecular interactions.
- The observed π-π stacking and hydrogen bonding play a role in stabilizing the crystal lattice.
- These findings contribute to the understanding of structure-property relationships in organic crystals.
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