Turkish Journal of Chemistry
DOI
10.3906/kim-1701-50
Abstract
Eight novel 3-(4-(benzyloxy)phenyl)-5-(4-bromophenyl)-1-(4-substituted-phenyl)formazan (4a-4h) were synthesized by coupling of substituted phenylhydrazones with diazonium salts of 4-bromoaniline. The substituted phenylhydrazones, which are intermediate products, were obtained from the condensation of substituted phenylhydrazines with 4-(benzyloxy)benzaldehyde. All target compounds were characterized by using FTIR, $^{1}$H NMR, $^{13}$C NMR, LC$-$MS spectrometry, and elemental analysis. Absorption spectra of these compounds in solvents with different polarities were investigated thoroughly. Time-dependent density functional theory (TD-DFT) studies were conducted to shed light on their electronic structures, Kohn--Sham orbitals, and electronic transitions.
Keywords
Formazans, UV-visible absorption spectroscopy, substituent effect, solvent effect, density functional theory (DFT)
First Page
710
Last Page
727
Recommended Citation
TÜRKOĞLU, GÜLŞEN and ÇINAR, M. EMİN
(2017)
"Experimental and computational studies on the absorption properties of novel formazan derivatives,"
Turkish Journal of Chemistry: Vol. 41:
No.
5, Article 9.
https://doi.org/10.3906/kim-1701-50
Available at:
https://journals.tubitak.gov.tr/chem/vol41/iss5/9
