Spectroscopic and DFT Studies of Distinct Anilines for Electronic and Optical Properties | Chapter 12 | New Trends in Physical Science Research Vol.5

 CNDO, MINDO, and PCILO were utilised in significant examinations of anilines to report biological activities such as oxidation, polymerization, arylation, alkylation, protonation, and conformation for photophysical and electrochemical characteristics. Using the electron density technique, these interactions allow great scope for assessing physical, chemical, and electrooptical characteristics. Experimental research such as FTIR and FT Raman, as well as computational studies with GaussView4.1 software employing B3LYP–basis set 6-311++(d,p) for electrooptical characteristics, are used to ascribe the family of anilines-aniline (AN), p-chloroaniline (CAN), and p-nitroaniline (NAN). The wave numbers are in the prescribed range relating to functional group and fingerprint areas, according to the interpretation of experimental FTIR and FT Raman spectra. The intensity of the wave numbers in Raman spectra is found to be lower than in infrared spectra. The molecular editor Avogadro is used to depict molecular structures for molecular properties. Computational evaluations are carried out for ideal architectures to verify that estimated infrared and Raman spectra match experimental spectra. Charge transfer interactions influence the dipole moment, EHomo, ELumo, energy gap, electrophilicity index, polarisation, and first order hyperpolarizability. With a lower energy gap, high polarizability, and first order Hyperpolarizability, NAN has a stronger propensity in charge transfer interactions, enabling for the formation of advanced optical materials and devices.

Author(s) Details:

Ch. Ravi Shankar Kumar,
Department of Physics, School of Science, GITAM University, Visakhapatnam - 530045, India.

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