Structures, photoresponse properties and DNA binding abilities of 4-(4-pyridinyl)-2-pyridone salts. Issue 17 (27th March 2019)

• Record Type: Journal Article
• Authors: Mandal, Tripti; Dey, Arka; Pathak, Sudipta; Islam, Md. Maidul; Konar, Saugata; Ortega-Castro, Joaquín; Seth, Saikat Kumar; Ray, Partha Pratim; Frontera, Antonio; Mukhopadhyay, Subrata
• Is Part Of: RSC advances. Volume 9:Issue 17(2019)
• Page Start: 9663
• Page End: 9677
• Publication Date: 2019-03-27
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c9ra00666d
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : The optical band gap energies in several 2-pyridone derivatives have been measured using solid state UV to explore their semiconductor behavior. The electric current measurements for the four compounds exhibit enhanced photoconduction properties under irradiation of light. Abstract : Three salts [perchlorate (2 ), chloride (3 ) and tetrafluoroborate (4 )] were synthesized from a 1-(2-aminoethyl)-6-hydroxy-2-oxo-1, 2-dihydro-[4, 4′-bipyridine]-3, 5-dicarbonitrile compound (1 ) and characterized by spectroscopic and single crystal X-ray diffraction methods. Various noncovalent interactions ( e.g., anion⋯π +, π⋯π, lp⋯π) are explored in the solid state crystal structure of the salts. Optical band gaps of all the four compounds were determined from their solid-state UV-vis spectrum. Electrical properties like electrical conductivity, photosensitivity, etc. were calculated and the results revealed that they have potential to act as optoelectronic devices. The values of the electrical parameters increase several times when they are exposed to visible light rather than in dark conditions. The light sensing properties of the salts (2–4 ) are enhanced compared to that of the mother organic compound1 but the magnitude of this enhancement is not same for the three salts. This observation has been rationalized by theoretical considerations. Moreover, the DNA binding ability of one of the representative salts (compound2 ) was examined to check the biological importance of the synthesized salts.