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61.
M. Emin Günay Osman Dayan Ayta Gürhan Gke Muhittin Aygün Bekir etinkaya Orhan Büyükgüngr 《Polyhedron》2008,27(18):3607-3610
Treatment of N,N′-bis(mesityl)pyridine-2,6-carboxyimidoyl dichloride, 1, in toluene solution with [Pt(PPh3)4] at 100 °C afforded a novel platinacyclic compound, 3, in 63% yield, instead of the expected compound 2. The molecular and crystal structures of the title compound, 3, have been determined by the single crystal X-ray diffraction technique. The coordination geometries around the Pt atoms are distorted square-planar. In the crystal structure, the molecules are linked by a pair of C–H···N hydrogen bonds into a centrosymmetric dimer with an ring, centred at (1/2,1/2,1/2). 相似文献
62.
Ahmet Coşkun Emin Karapinar 《Journal of inclusion phenomena and macrocyclic chemistry》2008,60(1-2):59-64
4-(Chloroacetyl)diphenyl thioether (1) was synthesized from chloroacetyl chloride and diphenyl thioether in the presence of
AlCl3 as catalyst in a Friedel-Crafts reaction. Subsequently, its keto oxime (2) and glyoxime (3) derivatives were prepared. N-(4′-Benzo[15-crown-5]thiophenoxyphenylaminoglyoxime
(H2L) and its sodium chloride complex (H2L · NaCl) were prepared from 4-(thiophenoxy)chlorophenylglyoxime (3), 4′-aminobenzo[15-crown-5] and sodium bicarbonate or
sodium bicarbonate and sodium chloride. Ni(II), Co(II) and Cu(II) complexes of H2L and H2L · NaCl have a metal–ligand ratio of 1:2 and the ligand coordinates through the two N atoms, as do most of the vic-dioximes. The BF2-capped Ni(II) mononuclear complex of the vic-dioxime was prepared. The macrocyclic ligands and their transition metal complexes
were characterized on the basis of FT-IR, 1H NMR, 13C NMR spectroscopy and elemental analyses data. 相似文献
63.
Açıkkalp Emin Kandemir Süheyla Yerel 《Journal of Thermal Analysis and Calorimetry》2021,145(3):649-657
Journal of Thermal Analysis and Calorimetry - The aim of this research is to show the potential application of a photon enhanced thermionic emitter (PETE)–irreversible heat engine (HE) hybrid... 相似文献
64.
Shakouri Omolbanin Assad Mamdouh El Haj Açıkkalp Emin 《Journal of Thermal Analysis and Calorimetry》2021,145(3):1075-1090
Journal of Thermal Analysis and Calorimetry - This paper targets to consider a hybrid cycle consisting of a solid oxide fuel cell and an Ericsson thermal engine that provides drinking water by... 相似文献
65.
Ahmadi Mohammad Hossein Açıkkalp Emin 《Journal of Thermal Analysis and Calorimetry》2021,145(3):631-634
Journal of Thermal Analysis and Calorimetry - 相似文献
66.
İnce İskender Yıldırım Yeliz Güler Günnur Medine Emin İlker Ballıca Gülşah Kuşdemir Bekir Cem Göker Erdem 《Journal of Radioanalytical and Nuclear Chemistry》2020,324(1):71-85
The aim of the present research was to formulate and characterize radioiodinated folic acid-chitosan conjugated thymoquinone nanoparticles (FATQCSNPs) and to increase targeting ability on ovarian cancer cell. The dose of drug-loading into the FATQCSNPs and the amount of folic acid on the FATQCSNPs surface were determined as a 20.0?±?1% and 46.0?±?0.5%, respectively. Cell viabilities (%) determined on SKOV-3 and Caco-2 cells for 48 h. TQ, TQCS and FATQCS were very cytotoxic with lower IC50 values on both cell lines. At specific-activity-dependent incorporation study, the incorporation efficiencies of 131I-FATQCSNPs was higher than that of 131I-TQ on SKOV3 cell lines.
相似文献67.
Mete E Gul HI Bilginer S Algul O Topaloglu ME Gulluce M Kazaz C 《Molecules (Basel, Switzerland)》2011,16(6):4660-4671
The development of resistance to current antifungal therapeutics drives the search for new effective agents. The fact that several acetophenone-derived Mannich bases had shown remarkable antifungal activities in our previous studies led us to design and synthesize some acetophenone-derived Mannich bases, 1-8 and 2-acetylthiophene-derived Mannich base 9, 1-aryl-2-dimethylaminomethyl-2-propen-1-one hydrochloride, to evaluate their antifungal activities. The designed chemical structures have α,β-unsaturated ketone moieties, which are responsible for the bioactivities of the Mannich bases. The aryl part was C?H?(1); 4-CH?C?H? (2); 4-CH?OC?H? (3); 4-ClC?H? (4); 4-FC?H? (5); 4-BrC?H? (6); 4-HOC?H? (7); 4-NO?C?H? (8); and C?H?S(2-yl) (9). In this study the designed compounds were synthesized by the conventional heating method and also by the microwave irradiation method to compare these methods in terms of reaction times and yields to find an optimum synthetic method, which can be applied for the synthesis of Mannich bases in further studies. Since there are limited number of studies reporting the synthesis of Mannich bases by microwave irradiation, this study may also contribute to the general literature on Mannich bases. Compound 7 was reported for the first time. Antifungal activities of all compounds and synthesis of the compounds by microwave irradiation were also reported for the first time by this study. Fungi (15 species) were used for antifungal activity test. Amphotericin B was tested as an antifungal reference compound. In conclusion, compounds 1-6, and 9, which had more potent (2-16 times) antifungal activity than the reference compound amphotericin B against some fungi, can be model compounds for further studies to develop new antifungal agents. In addition, microwave irradiation can be considered to reduce reaction period, while the conventional method can still be considered to obtain compounds with higher reaction yields in the synthesis of new Mannich bases. 相似文献
68.
Çiğdem İçhedef Serap Teksöz Perihan Ünak Kamile Şenocak Emin İ. Medine Türkan Ertay Recep Bekiş 《Journal of Radioanalytical and Nuclear Chemistry》2012,292(2):739-743
The aim of this study is to examine biological behaviour of radiolabeled guanine with [Tc(CO)3]+ core in vitro and in vivo. In vitro biological behavior of 99mTc(CO)3–Gua was evaluated on Lung (A-549), Breast (MCF-7), Colonic (Caco) carcinoma cell lines and normal human bronchial epithelial
(NHBE). 99mTc(CO)3–Gua compound showed high uptake on A-549 cell line when compared to NHBE cell line. Biodistribution characteristics of 99mTc(CO)3–Gua was evaluated using New Zeland Rabbits. Scintigraphic results showed that a high level of radioactivity was observed
in the lungs and liver shortly after administration of the 99mTc(CO)3–Gua and excretion takes place via both renal and hepatobiliary route. It was concluded that 99mTc(CO)3–Gua could be used as a nucleotide radiopharmaceutical for imaging purposes. 相似文献
69.
Muharrem Diner Namk
zdemir M. Emin Günay Bekir etinkaya Orhan Büyükgüngr 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(8):m373-m375
The title complex, [RhBr(C8H12)(C19H22N2O2)], has a distorted square‐planar geometry. There are two molecules, A and B, in the asymmetric unit. The Rh—C bond distance between the N‐heterocyclic ligand and the metal atom is 2.039 (2) Å in molecule A and 2.042 (2) Å in molecule B. The angle between the carbene heterocycle and the coordination plane is 87.56 (12)° in molecule A and 87.03 (11)° in molecule B. It is shown that the average Rh—C(COD) (COD is cyclooctadiene) distance is linearly dependent on the Rh—C(imidazolidine) distance in this type of compound. This can be ascribed to the steric hindrance produced by the packing. The crystal structure contains intramolecular C—H⋯O and intermolecular C—H⋯Br interactions. 相似文献
70.
Mehmet Bağmancı Muharrem Karaaslan Emin Ünal Oguzhan Akgol Cumali Sabah 《Optical and Quantum Electronics》2017,49(7):257
A new metamaterial absorber (MA) is investigated and shown numerically for solar energy harvesting for future solar cell applications. The structure consists of two metals and one dielectric layer having different thicknesses. Owing to this combination, the structure exhibits plasmonic resonance characteristics. In the entire spectrum of visible frequency region, the obtained results show that investigated structure has perfect absorptivity which is above 91.8%. Proposed structure also has 99.87% absorption at 613.94 THz and 99% absorption between 548 and 669 THz. The proposed structure also shows both polarization and angle independency for the entire visible region. The MA based solar cell proposes high absorption with an upper ratio of 90% in the widest range of visible spectrum comparing to the studies in literature. Hence, the proposed metamaterial absorber solar cells can be used for invisibility in entire spectrum of visible light. The absorption characteristics of the solar absorber are also investigated for infrared and ultraviolet region. The enhancement of absorption of the structure will provide new type of sensors in these frequency ranges. 相似文献