Crystal structure, spectral characterization, molecular modeling studies and structural effects of the proton transfer process for (E)-5-methoxy-2-[(3,4-dimethylphenylimino) methyl]phenol
Yazarlar (5)
Prof. Dr. Başak KOŞAR KIRCA Sinop Üniversitesi, Türkiye
Dr. Öğr. Üyesi Gonca Özdemir Tari Ondokuz Mayis Üniversitesi, Türkiye
Prof. Dr. Çiğdem ALBAYRAK KAŞTAŞ Sinop Üniversitesi, Türkiye
Mustafa Odabaşoğlu Pamukkale Üniversitesi, Türkiye
Orhan Büyükgüngör
Ondokuz Mayis Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Macedonian Journal of Chemistry and Chemical Engineering (Q4)
Dergi ISSN 1857-5552 Dergi Bilgileri (2017)
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 12-2017
Cilt / Sayı / Sayfa 36 / 2 / 265–278 DOI 10.20450/mjcce.2017.1295
Makale Linki http://dx.doi.org/10.20450/mjcce.2017.1295
UAK Araştırma Alanları
Yoğun Madde Fiziği
Özet
The main purpose of this study is to characterize a new organic material, (E)-5-methoxy-2-[(3,4-dimethylphenylimino)methyl]phenol, which was synthesized and grown as a single crystal. The molecular structure and spectroscopic properties of the ortho-hydroxy Schiff base compound were determined by X-ray diffraction analysis, Fourier-transform infrared (FT-IR), ultraviolet-visible (UV-Vis) and nuclear magnetic resonance (NMR) spectroscopy techniques, experimentally and computationally with density functional theory (DFT) calculations. X-ray and UV-Vis studies show that the compound exists in an OH tautomeric form in the solid and solvent media. The gas phase geome-try optimizations of two possible forms of the title compound, resulting from the prototropic tautomerism, were ob-tained using DFT calculations at the B3LYP/6-311G+(d,p) level of theory. A relaxed potential energy surface (PES) scan was performed based on the optimized geometry of the OH tautomeric form by varying the redundant internal co-ordinate, the O-H bond distance. According to the PES scan process, the molecular geometry is strongly affected by the intramolecular proton transfer. The calculated first hyperpolarizability indicates that the compound could be a good material for non-linear optical applications.
Anahtar Kelimeler
DFT | Intramolecular proton transfer | NLO | Prototropic tautomerism | Schiff base