Computational Spectroscopy and Molecular Docking Studies

Computational spectroscopy combines quantum mechanical simulations with spectroscopic techniques to predict vibrational, electronic and nuclear magnetic resonance signatures of molecules. Methods such as density functional theory (DFT) and time-dependent DFT (TD-DFT) enable the calculation of infrared, Raman, UV-Vis and NMR spectra, revealing detailed information about molecular structure, electronic distribution and non-linear optical properties. Molecular docking employs computational algorithms to predict how small molecules bind within the active sites of proteins or nucleic acids, estimating binding modes and affinities that guide virtual screening and drug discovery. The integration of spectroscopic modelling with docking studies fosters a holistic understanding of ligand conformations, intermolecular interactions and reactivity profiles. Recent methodological improvements in functional approximations, basis sets and force-field parametrisations have enhanced the accuracy of both spectral predictions and binding energy calculations. Applications range from the rational design of enzyme inhibitors and photoreactive materials to elucidation of non-covalent networks in complex biological assemblies. By linking spectral fingerprints to binding phenomena, researchers can refine lead compounds and tailor molecular frameworks for pharmaceutical and materials science endeavours.

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Computational Spectroscopy and Molecular Docking Studies publication trend

The graph below shows the total number of articles in computational spectroscopy and molecular docking studies across all publications each year (not limited to Nature Index journals).

Technical terms

Density Functional Theory (DFT): A quantum mechanical approach for computing the electronic structure and properties of molecules.

Time-Dependent DFT (TD-DFT): An extension of DFT that models excited states and predicts optical absorption and emission spectra.

HOMO and LUMO: The highest occupied and lowest unoccupied molecular orbitals, which indicate a molecule’s propensity to donate or accept electrons.

Molecular Docking: A computational technique to predict the preferred orientation, binding interactions and affinity of a ligand within a biological target.

NCI-RDG (Non-Covalent Interaction–Reduced Density Gradient): A topological method for visualising and quantifying weak intermolecular forces such as hydrogen bonds and van der Waals interactions.

References

1. Quantum Computational Investigation of (E)-1-(4-methoxyphenyl)-5-methyl-N′-(3-phenoxybenzylidene)-1H-1,2,3-triazole-4-carbohydrazide. Molecules (2022).
2. Synthesis, single crystal (XRD), Hirshfeld surface analysis, computational study (DFT) and molecular docking studies of (E)-4-((2-hydroxy-3,5-diiodobenzylidene)amino)-N-(pyrimidine)-2-yl) benzenesulfonamide. Heliyon (2021).
3. Computational investigation of solvent interaction (TD-DFT, MEP, HOMO-LUMO), wavefunction studies and molecular docking studies of 3-(1-(3-(5-((1-methylpiperidin-4-yl)methoxy)pyrimidin-2-yl)benzyl)-6-oxo-1,6-dihydropyridazin-3-yl)benzonitrile. Chemical Physics Impact (2023).