Synthesis, Characterization and Photophysical Studies of Tricoumarin-Pyridines

Nirmala S. Naik, Lokesh A. Shastri, Chinna Bathula, Bahubali Chougala, Samundeeswari Shastri, Megharaja Holiyachi, Vinay Sunagar

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

A series of novel tricoumarin-pyridines have been synthesized by the reaction of 4-formyl coumarins and substituted 3-acetylcoumarin with ammonium acetate for the application in organic electronics as well as fluorescent dyes. The structures of all new compounds were confirmed and characterized by IR, 1H NMR and ESI-Mass analysis. All the important photo physical prerequisites for organic electronic application such as strong and broad optical absorption, thermal stability were determined for the synthesized molecules. Optical properties were studied by UV-Vis absorption and fluorescence spectroscopy. Optical band gaps of the tricoumarin-pyridines were found to be 2.72–3.10 eV as calculated from their onset absorption edge. The tricoumarin-pyridines were thermally stable up to 290–370 °C as determined by thermogravimetric analysis (TGA). Photophysical studies indicate the synthesized materials are promising candidates for organic electronic applications.

Original languageEnglish
Pages (from-to)419-425
Number of pages7
JournalJournal of Fluorescence
Volume27
Issue number2
DOIs
StatePublished - 1 Mar 2017

Keywords

  • Photophysical studies
  • Thermogravimetry
  • Tricoumarins-pyridines
  • UV-Vis absorption

Fingerprint

Dive into the research topics of 'Synthesis, Characterization and Photophysical Studies of Tricoumarin-Pyridines'. Together they form a unique fingerprint.

Cite this