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Quantum chemical calculations and interpretation of electronic transitions and spectroscopic characteristics belonging to 1, 3 - Mesityl 3 - methylcyclobutyl 2 - naphthalene 1 - yloxy ethanone    
Yazarlar
Murat Koca
Adıyaman Üniversitesi, Türkiye
Cengiz Arıcı
Doç. Dr. Halit MUĞLU Doç. Dr. Halit MUĞLU
Kastamonu Üniversitesi, Türkiye
Prof. Dr. Fatma KANDEMİRLİ Prof. Dr. Fatma KANDEMİRLİ
Kastamonu Üniversitesi, Türkiye
Doç. Dr. Can Doğan VURDU Doç. Dr. Can Doğan VURDU
Kastamonu Üniversitesi, Türkiye
Yusuf Zalaoğlu
Osmaniye Korkut Ata Üniversitesi, Türkiye
Gürcan Yıldırım
Abant İzzet Baysal Üniversitesi, Türkiye
Özet
This comprehensive study reports the synthesis of the title compound, 1-(3-Mesityl-3-methylcyclobutyl)-2-(naphthalene-1-yloxy)ethanone (C26H28O2), and identification of the molecule by means of the standard experimental methods such as single-crystal X-ray diffraction, ultra violet-visible (UV-vis) spectra, Fourier transform infrared (FTIR) spectra, 13C and 1H NMR chemical shifts and quantum chemical calculations using density functional theory (B3LYP) method for the first time. The experimental results observed display that the synthesis of the C26H28O2compound is perfectly conducted without any impurities. Additionally, the little deviations are noticed on the bond lengths and bond angles, confirming that the strong intra-molecular charge transfers appear in the due to the presence of the electron engagements and conjugative effects (bond weakening). Besides, the intermolecular CH⋯O distance presents the interaction between the methylcyclobutyl CH group and oxygen atom in the ethanone group. At the same time, the absorption wavelength (λmax) appears at 292 nm and interval 297-269 nm in the solvent of chloroform and THF as a consequence of the presence of effective π-π∗conjugated segments in the molecule studied. Besides, optical band gap energy of 3.22/3.25 eV (chloroform/THF), verifies the existence of the strong electronic donating groups in the structure. As for the quantum chemical computations, the determination of the optimized molecular structures, vibrational frequencies including infrared intensities, vibrational wavenumbers, thermodynamic properties, atomic charges, electronic transitions, dipole moment (charge distribution), optical band gap energy, 1H and 13C NMR chemical shifts are conducted using density functional theory/Becke-3-Lee-Yang-Parr (DFT/B3LYP) method with the standard 6-311++G(2d,2p) level of theory. The results obtained show that the strong intra-molecular charge transfer (ICT) appears between the donor and acceptor in the title compound due to the existence of the strong electronic donating groups and effective π-π∗conjugated segments with high electronic donor ability for the electrophilic attack (intermolecular interactions). Additionally, the presence of the non-uniform charge distributions (polar behavior) on the various atoms makes the title compound be useful to bond metallically.
Anahtar Kelimeler
B3LYP | C H O 26 28 2 | FTIR | Identification | NMR | UV-vis
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
Dergi ISSN 1386-1425
Dergi Tarandığı Indeksler SCI
Makale Dili İngilizce
Basım Tarihi 12-2015
Cilt No 137
Sayı 137
Sayfalar 899 / 912
Doi Numarası 10.1016/j.saa.2014.08.119
Makale Linki https://www.ncbi.nlm.nih.gov/pubmed/26172460