Synthesis and Photophysical Behaviours of Novel Phenanthro[9,10-d] imidazole Substituted Azo Dyes in Solvent Media

Yıl 2018, Cilt: 14 Sayı: 3, 285 - 289, 30.09.2018

Seçil Çelik Erbaş , Sibel Gülle

https://doi.org/10.18466/cbayarfbe.423419

Cited By: 2

Öz

In this study, three
novel phenanthroimidazole derivatives containing azo group were synthesized and
their photophysical properties were investigated. For this purpose,
2-(4-nitrophenyl)1H-phenanthro[9,10-d]imidazole structure obtained from 9,10-phenanthroquinone and 4-nitrobenzaldehyde was
reduced with palladium on activated charcoal 10 % and hydrazine hydrate. Phenanthro[9,10-d]imidazole-2-yl)aniline obtained in
this way was converted to phenantroimidazole-azo derivatives containing
different aromatic groups. Structural analyses were performed by FT-IR, NMR,
LC-MS spectroscopic techniques. Spectral characterizations and photostability
studies of phenanthroimidazole derivatives were performed by UV-vis and
fluorescence spectroscopy in solvent media. The maximum absorption and emission wavelengths, molar
extinction coefficients, singlet energy levels, Stokes’ shift values of
phenanthroimidazole-azo derivatives were obtained.

Anahtar Kelimeler

Phenanthroimidazole, azo group, fluorescence spectroscopy, dye solvent interaction

Kaynakça

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