Novel Iminocoumarin Derivatives: Synthesis, Spectroscopic and Computational Studies

摘要: Three novel iminocoumarin derivatives with high quantum yield are synthesized from 3-benzimidazole substituted coumarin and different aromatic aldehydes. The photophysical behavior of the compounds was studied using UV-visible fluorescence spectroscopy in polar non-polar solvents. show absorption maxima at around 450 nm emission 500 nm. yields dichloromethane chloroform more than 0.90. absorption, dependent on polarity Along an intense these shoulder peak solvent plots revealed charge transfer process molecules donor to acceptor. Density Functional Theory Time Dependent computations have been used understanding structural, molecular, electronic parameters dyes. dyes were characterized by FT-IR, 1H NMR, 13C NMR mass spectral analysis.