Johanan Christian Prasana

ORCID: 0000-0001-9899-2025
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About
Contact & Profiles
Research Areas
  • Nonlinear Optical Materials Research
  • Synthesis and biological activity
  • Free Radicals and Antioxidants
  • Synthesis and Characterization of Heterocyclic Compounds
  • Chemical synthesis and pharmacological studies
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Computational Drug Discovery Methods
  • Bioactive Compounds and Antitumor Agents
  • Metal complexes synthesis and properties
  • Structural and Chemical Analysis of Organic and Inorganic Compounds
  • Crystal structures of chemical compounds
  • Phenothiazines and Benzothiazines Synthesis and Activities
  • Protein Interaction Studies and Fluorescence Analysis
  • Synthesis of Organic Compounds
  • DNA and Nucleic Acid Chemistry
  • Organic Chemistry Cycloaddition Reactions
  • Synthesis of Tetrazole Derivatives
  • Molecular spectroscopy and chirality
  • Inorganic and Organometallic Chemistry
  • Pharmacological Effects of Natural Compounds
  • Metal-Catalyzed Oxygenation Mechanisms
  • Synthesis and Reactivity of Sulfur-Containing Compounds
  • Andrographolide Research and Applications
  • Synthesis and Reactivity of Heterocycles

Christian Medical College
2017-2024

University of Madras
2019-2022

Quantum chemical, spectroscopic and bioactivity studies of pharmacologically active Ethyl 4-hydroxy 3-methoxy ethyl cinnamate (EHMC) were investigated. By optimizing the geometric structural parameters, it was theoretically possible to obtain FTIR &UV-Vis absorbance EHMC in both protic aprotic solvents. PED values computed, vibrational assignments identified. The TD-DFT approach IEFPCM model used for simulating UV spectra chemical. This study presents a comprehensive analysis molecular...

10.1016/j.chphi.2024.100558 article EN cc-by-nc-nd Chemical Physics Impact 2024-03-11

The vibrational, electronic and charge transfer studies on 2-bromo-6-methoxynaphthalene (2BMN) were done using DFT method with B3LYP/6-311++G(d,p) theory GAUSSIAN 09W software. Theoretical experimental investigations FT-IR FT Raman executed 2BMN. calculated vibrational wavenumbers scaled suitable scaling factors assignments to all modes of vibrations Potential Energy Distribution (PED). Frontier Molecular Orbitals TD-DFT the HOMO-LUMO energy gap was also obtained. Other properties global...

10.1016/j.heliyon.2021.e07213 article EN cc-by-nc-nd Heliyon 2021-06-01

2,6-Dimethoxybenzoic acid (2,6-DMBA), a phytochemical from golden eye grass, shows promising therapeutic agent for Alzheimer’s dementia (AD). Density functional theory (DFT) calculations with the B3LYP and 6-311++G(d,p) basis set were used structural optimization, spectroscopic, electronic, topological biological evaluation. Spectroscopic methods, such as Fourier transform infrared (FT-IR) raman (FT-Raman) spectroscopy, supported geometric structure. Topological analyses, including molecular...

10.14233/ajchem.2025.33504 article EN Asian Journal of Chemistry 2025-05-27
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