Yazar "Ozdemir, N." seçeneğine göre listele
Listeleniyor 1 - 5 / 5
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe EXPERIMENTAL AND THEORETICAL CHARACTERIZATION OF 3-(3,5-DIMETHYLBENZYL)-1-METHYL-3,4,5,6-TETRAHYDROPYRIMIDINIUM TRICHLORIDO(?6-p-CYMENE)RUTHENATE(II)(Pleiades Publishing Inc, 2023) Ozdemir, N.; Karaca, E. O.; Gurbuz, N.; Ozdemir, I.In this study, the title compound was synthesized, and its structure was illuminated by X-ray diffraction, H-1 and C-13 NMR spectroscopy methods. X-ray study shows that the crystal structure is stabilized by intermolecular C-H & ctdot;Cl hydrogen bonds. Quantum mechanical approach was carried out to study the molecular structure, NMR spectra and stability of the compound by using Density Functional Theory (DFT) with HSEH1PBE functional and LanL2DZ basis set. Hirshfeld surface analysis was used as theoretical approach to assess driving force for crystal structure formation via the intermolecular interactions in the crystal lattice. In addition, chemical reactivity and kinetic stability of the molecule based on frontier molecular orbital analysis were investigated.Öğe AN IMIDAZOLIDIN-2-YLIDENE-BASED Pd-PEPPSI COMPLEX: AN EXPERIMENTAL AND THEORETICAL APPROACH(Pleiades Publishing Inc, 2023) Ozdemir, N.; Kaloglu, M.; Ozdemir, I.A PEPPSI-type imidazolidin-2-ylidene-based palladium(II) complex was prepared according to literature. Detail molecular structure of this complex has been confirmed by X-ray diffraction analysis and supplemented by theoretical calculations. Also, electronic properties of the complex were investigated by UV-Vis spectroscopy. The complex under scrutiny was found to adopt a trans arrangement with square-planar geometry. Furthermore, theoretical structure and spectroscopic data were obtained using density functional theory (DFT/HSEH1PBE) method and SDD basis set, and compared with the experimental data. In general, the theoretical findings were in line with the experimental outcomes.Öğe Is lymph node ratio (LNR) having additional contribution for predict prognosis on pathologic lymph node staging in node -positive breast cancer patients?(Amer Assoc Cancer Research, 2016) Kaplan, M. A.; Odabasi, H.; Ozdemir, N.; Harputluoglu, H.; Aliustaoglu, M.; Berk, V.; Gunaydin, Y.[Abstract Not Available]Öğe Substituted N-heterocyclic carbene PEPPSI-type palladium complexes with different N-coordinated ligands: Involvement in the direct C-H bond activation of heteroarenes derivatives with aryl bromide and their antimicrobial, anti-inflammatory and antioxidant activities(Elsevier Science Sa, 2022) Slimani, I; Boubakri, L.; Ozdemir, N.; Mansour, L.; Ozdemir, I; Gurbuz, N.; Yasar, S.In this study new benzimidazolium salt as N-heterocyclic carbene precursors and their related new PEPPSI-Pd (II)-N-heterocyclic carbene (NHC) complexes 3a-e were prepared and caracterized. The structures of all compounds have been characterized by H-1 NMR, C-13 NMR, and IR spectroscopy, as well as elemental analysis techniques and Direct analysis in real time (DART)-time-of-flight mass spectrometry (TOF-MS), which support the proposed structures. Further confirmations of structural details were provided by a single-crystal X-ray. A single crystal of PEPPSI-Pd(II)-N-heterocyclic carbene (NHC) complex 3c shows that the coordination geometry around Pd slightly distorted square-planar geometry. Next, the PEPPSI-Pd(II)-N-heterocyclic carbene (NHC) complexes 3a-e were used as catalysts in the direct C-5-arylation of 2-acetyl furan and 2-acetylthiophene with various aryl bromides. These complexes exhibited moderate to high catalytic activities and gave C-H activation selectively at the C-5-position. Further, PEPPSI-Pd(II)-N-heterocyclic carbene (NHC) complexes 3a-e have been evaluated for their potential antibacterial properties against a panel of bacterial strains namely, Micrococcus luteus, Listeria monocytogenes, Salmonella Typhimurium, Staphylococcus aureus, candida albican and pseudomonas aeruginosa. In addition; these new PEPPSI-Pd(II)-N-heterocyclic carbene (NHC) complexes 3a-e were investigated for anti-oxidant activities by super oxide radical; DPPH (2,2-Diphenyl-1-picrylhydrazyl); and hydroxyl radical scavenging assays; in which most of them displayed significant antioxidant activities. Furthermore; PEPPSI-Pd(II)-N-heterocyclic carbene (NHC) complexes 3a-e were evaluated for anti-inflammatory activity by indirect haemolytic and lipoxygenase inhibition assays and revealed good activity.Öğe Watching of health related television programs of adults and examining the situation of their affect(Oxford Univ Press, 2017) Pehlivan, E.; Ozdemir, N.; Gozukara, H.[Abstract Not Available]