Investigation of molecular structure and solvent/temperature effect on tautomerism in (E)-4, 6-dibromo-3-methoxy-2-[(p-tolylimino) methyl] phenol, a new thermochromic Schiff …
Yazarlar (3)
Gökhan Kaştaş
Prof. Dr. Çiğdem ALBAYRAK KAŞTAŞ Sinop Üniversitesi, Türkiye
Ahmet Tabak Sinop Üniversitesi
| Makale Türü | Özgün Makale (Uluslararası alan indekslerindeki dergilerde yayınlanan tam makale) | ||
| Dergi Adı | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | ||
| Makale Dili | – | Basım Tarihi | 11-2019 |
| Cilt / Sayı / Sayfa | 222 / 0 / 117198–0 | DOI | – |
| Makale Linki | https://www.sciencedirect.com/science/article/pii/S1386142519305888 | ||
| UAK Araştırma Alanları |
Organik Kimya
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| Özet |
| The molecular structure and the solvent/temperature effect on the tautomerism in a new Schiff base, (E)-4,6-dibromo-3-methoxy-2-[(p-tolylimino)methyl]phenol, were investigated using spectroscopic (NMR, UV–vis, FT-IR), crystallographic (XRD), computational (DFT and TD-DFT) methods and harmonic oscillator model of aromaticity (HOMA). The XRD, DFT and FT-IR results show that the compound exists in the phenol-imine form in the solid state. HOMA indices support the aromatic structure of the compound. DFT calculations were performed to understand proton transfer process and relatively close values were obtained for the energies of tautomers. UV–vis studies prove the solvent dependence of the tautomerism in the compound by revealing the existence of both phenol-imine and keto-amine forms in polar solvents and only the phenol-imine form in apolar solvent. The TD-DFT results for the electronic … |
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