Synthesis, 2D-NMR analysis, DFT, and optical nonlinear studies of a new cyclic imide

Abstract

The synthesis of (11R,15S)-13-(3-hydroxyphenyl)-9,10-dihydro-9,10-[3,4]epipy-rroloanthracene-12,14‑dione, cyclic imide compound B3, via three path ways as a new compound is detailed. The new cyclic imide compound B3 is characterized by FTIR, Mass, 1 and 2D NMR (HSQC) and UV–vis. spectra. The cyclic imide compound B3 structure is studied using B3LYP method with the 6–311G* basis set level to carry out the density functional theory (DFT) calculations. The nonlinear optical)NLO(properties of the synthesized compound are studied using low power, continuous wave (cw), visible laser beam of wavelength 473 nm via two techniques viz., diffraction patterns (DPs) and Z-scan. Nonlinear refractive index (NLRI) of the compound B3 is calculated using both techniques where as high as 7.7 × 10−7 cm2/W at input power of 57 mW is obtained due to DPs technique. The all-optical switching (AOS) of the synthesized cyclic imide compound B3 is successfully examined using visible laser beams of wavelength 473 nm as controlling beam and 532 nm as the controlled beam based on the cross-passing technique.