TY - JOUR
T1 - Synthesis, Characterization and Photophysical Studies of Tricoumarin-Pyridines
AU - Naik, Nirmala S.
AU - Shastri, Lokesh A.
AU - Bathula, Chinna
AU - Chougala, Bahubali
AU - Shastri, Samundeeswari
AU - Holiyachi, Megharaja
AU - Sunagar, Vinay
N1 - Publisher Copyright:
© 2017, Springer Science+Business Media New York.
PY - 2017/3/1
Y1 - 2017/3/1
N2 - 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.
AB - 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.
KW - Photophysical studies
KW - Thermogravimetry
KW - Tricoumarins-pyridines
KW - UV-Vis absorption
UR - http://www.scopus.com/inward/record.url?scp=85008658160&partnerID=8YFLogxK
U2 - 10.1007/s10895-016-2018-6
DO - 10.1007/s10895-016-2018-6
M3 - Article
C2 - 28070796
AN - SCOPUS:85008658160
SN - 1053-0509
VL - 27
SP - 419
EP - 425
JO - Journal of Fluorescence
JF - Journal of Fluorescence
IS - 2
ER -