Publications by authors named "Yusuf Erdogdu"

Objectives: This study aimed to examine the publication rates of abstracts related to oculoplastic surgery and orbital diseases presented at the Turkish Ophthalmological Association National Congresses (TOA-NCs) in 2013-2022.

Materials And Methods: The study included abstracts in the field of oculoplastic surgery and orbital diseases accepted for presentation at TOA-NCs between 2013 and 2022. These abstracts were reviewed in terms of presentation type (oral, poster), number of authors, study setting (university, training and research, private, public, or abroad hospital), study type (case, clinical, or basic science), study topic (eyelid, lacrimal system, orbit, or thyroid eye disease), journal publication status, time to publication (months), publishing journal (national, international), and journal impact factor.

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We report a combined some (infrared, Raman and NMR) spectroscopic and quantum chemistry study on 7,8-Dihydroxy-4-Methylcoumarin molecule (78D4MC). The Raman and IR spectra of 78D4MC molecule were recorded and analyzed in the region 3500-50 cm(-1) and 4000-400 cm(-1), respectively. Potential energy scans were performed at the MMFF level of theory.

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In this work, we report a combined experimental and theoretical study on molecular structure, vibrational spectra and electronic properties of Esculetin (ESC). The FT-IR, FT-Raman and FT-NMR spectra have been recorded and analyzed. The molecular geometry, harmonic vibrational frequencies, chemical shifts, HOMO, LUMO energies and molecular electrostatic potential map of ESC have been calculated by using Density Functional Theory (B3LYP) with 6-311G++(d,p), cc-pVDZ, cc-pVQZ and cc-pVTZ basis sets.

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The experimental and theoretical vibrational spectra of 2 and 3-methylpiperidine (abbreviated as 2-MP and 3-MP) were studied. The FT-Infrared spectra of 2-MP and 3-MP molecules were recorded in the liquid phase. The structural and spectroscopic analysis of the title molecules were made by using density functional harmonic calculations.

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The experimental and theoretical study on the structures and vibrations of 1,3-bis(4-pyridyl)propane are presented. The FT-IR and Raman spectra of molecule have been measured. The optimized geometric bond lengths have been obtained by DFT show the best agreements with experimental values.

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