| Yazarlar (4) |
Necla Bektas
İstanbul Teknik Üniversitesi, Turkey |
|
Arif Daştan
Atatürk Üniversitesi, Turkey |
Doç. Dr. Musa ERDOĞAN
Kafkas Üniversitesi, Türkiye |
|
Abdullah Aydogan
İstanbul Teknik Üniversitesi, Turkey |
| Özet |
| A novel colorimetric sensor (4) for cyanide detection was designed based on guaiazulene which is a natural blue pigment. The sensor 4 was synthesized in excellent yield starting from guaiazulene in two simple reaction steps consisting of formylation of guaiazulene by the Vilsmeier-Haack reaction and subsequent Knoevenagel condensation reaction of 3-formylguaiazulene (2) with 1,3-indanedione (3). Structural characterization of sensor 4 was elucidated by means of various spectroscopic techniques such as 1H-, 13C NMR, and HRMS. The nucleophilic addition of cyanide to the β-conjugated carbon of 1,3-indanedione scaffold breaks intramolecular charge transfer (ICT), subsequently causing a significant change in its photophysical properties resulting in a color change, that can be observed with naked eye. Cyanide sensory properties of 4 were studied in detail with UV/Vis spectroscopy in aqueous DMSO and revealed a limit of detection as low as 1.72 μM with a very high selectivity among the various competing anions. The detection of cyanine in tab water and a food sample was also demonstrated along with filter paper-based smart phone application. |
| Anahtar Kelimeler |
| Azulene | Colorimetric sensor | Cyanide detection | Guaiazulene |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale |
| Dergi Adı | Journal of Molecular Liquids |
| Dergi ISSN | 0167-7322 |
| Dergi Grubu | Q1 |
| Makale Dili | İngilizce |
| Basım Tarihi | 04-2025 |
| Cilt No | 423 |
| Sayı | 1 |
| Doi Numarası | 10.1016/j.molliq.2025.127038 |
| Atıf Sayıları |
