A characterization study on 2,6-dimethyl-4-nitropyridine N-oxide by density functional theory calculations

Area of Science:

• Computational Chemistry
• Molecular Modeling
• Quantum Chemistry

Background:

• Accurate characterization of novel chemical compounds is crucial for advancing materials science and drug discovery.
• Density Functional Theory (DFT) offers a powerful computational approach for predicting molecular properties.

Purpose of the Study:

• To identify and characterize 2,6-dimethyl-4-nitropyridine N-oxide using theoretical calculations.
• To validate the chosen DFT method by comparing theoretical results with experimental data.
• To explore the electronic and structural properties relevant to the compound's reactivity and interactions.

Main Methods:

• Density Functional Theory (DFT) with B3LYP/6-311G(d,p) method and basis set.
• Normal coordinate analysis for vibrational spectra interpretation.
• Simulation of Frontier Molecular Orbitals (FMO) and Molecular Electrostatic Potential (MEP).

Main Results:

• Optimized molecular structure, vibrational frequencies, thermodynamic properties, and atomic charges were determined.
• Theoretical vibrational spectra showed good agreement with experimental results.
• Electronic properties including transition state and energy band gap were simulated, indicating potential for metallic bonding and intermolecular interactions.

Conclusions:

• The DFT B3LYP/6-311G(d,p) level is a reliable method for studying 2,6-dimethyl-4-nitropyridine N-oxide.
• The compound exhibits properties suitable for metallic bonding and intermolecular interactions.
• This research provides a foundational understanding of the title compound's characteristics for future applications.