Abstract

New biologically active coumarin derivative, substituted xanthene-dione was synthesized by an easy, facile, cost-effective and efficient method from dimedone and diethylene glycol diacrylate without use of expensive and hazardous catalyst. The synthesis is simple, short, high-yielding and moreover does not require expensive solvents. The compound was characterized by IR, NMR and X-ray crystallography study. DFT (Density Functional Theory) calculations were performed at Becke’s three-parameter functional and Lee-Yang-Parr functional (B3LYP) level of calculation and the 6-31G++ basis set was used for ground state geometry optimization. A comparison of the selected bond lengths and bond angles of the crystal structure and theoretically optimized structure by DFT have shown good agreement. The DFT study of electron surface potential (ESP), showed a large intramolecular charge transfer efficiency of the molecule indicating optical activity of xanthene dione.

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