ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Synthesis, antioxidant, antibacterial, and DFT study on a coumarin based salen-type Schiff base and its copper complex

Vibha Sharma, Ekta Kundra Arora, and Savio Cardoza

Chemistry Department, St. Stephen’s College, University of Delhi, Delhi 110007, India

E-mail: vibhasharmastephens@hotmail.com

Abstract: Synthesis of new efficient compounds is becoming urgent due to the resistance of organisms to drugs. Salen derivatives have interesting therapeutic and industrial applications. A coumarin based derivative of salen, 7-hydroxy-8-((E)-((2-((E)-((7-hydroxy-5-methyl-2-oxo-3,8a-dihydro-2H-chromen-8-yl)methylene)amino)-4-methylphenyl)imino)methyl)-5-methyl-2H-chromen-2-one (L), and its copper complex, CuL, have been synthesized and characterized. Antibacterial and antioxidant activity of these compounds have been evaluated and electronic, optical and molecular properties have been calculated using density functional theory (DFT) with B3LYP. The results were correlated with the biological activity and reactivity of the compounds. Experimental and theoretical calculations indicate that the studied copper complex has the potential to function as a drug. © 2016 Institute of Chemistry, Slovak Academy of Sciences

Keywords: DFT – transition metal complexes – biological activities – antibacterial studies – antioxidant activity

Full paper is available at www.springerlink.com.

DOI: 10.1515/chempap-2016-0083

Chemical Papers 70 (11) 1493–1502 (2016)