Turkish Journal of Chemistry
Abstract
Phenyl-4,4-di(3,6-dibutoxyphthalonitrile) (3) was synthesized by the reaction of 1,4-phenylenebisboronic acid (1) and 4-bromo-3,6-dibutoxyphthalonitrile (2), using Suzuki cross-coupling reaction. The newly synthesized compound (3) was characterized by FT-IR, MALDI-MS, ESI-MS, $^{1}$H-NMR, $^{13}$C-NMR, and $^{13}$C-DEPT-135-NMR. The fluorescence property of phenyl-4,4-di(3,6- dibutoxyphthalonitrile) (3) towards various metal ions was investigated by fluorescence spectroscopy, and it was observed thatthe compound (3) displayed a significantly `turn-off? response to Fe$^{3+}$, which was referred to 1:2 complex formation between ligand (3) and Fe$^{3+}$. The compound was also studied via density functional theory calculations revealing the interaction mechanism of the molecule with Fe$^{3+}$ ions.
DOI
10.3906/kim-2004-68
Keywords
Phthalonitrile, Suzuki cross-coupling, fluorescence, chemosensor, Fe$^{3+}$ ion
First Page
1254
Last Page
1264
Recommended Citation
AL-RAQA, S, ÖMEROĞLU, İ, ERBAHAR, D, & DURMUŞ, M (2020). A novel selective fluorescent chemosensor for Fe$^{3+}$ ions based on phthalonitrile dimer:synthesis, analysis, and theoretical studies. Turkish Journal of Chemistry 44 (5): 1254-1264. https://doi.org/10.3906/kim-2004-68
