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Muharrem Kaya Cengiz Yenikaya İbrahim Demir Orhan Murat Kalfa 《Russian Journal of General Chemistry》2008,78(5):939-945
A new vic-dioxime, N-(glyoxyldioxime)-N′-(2-hydroxybenzylidene)-1,4-diaminonaphthalene, was synthesized proceeding from naphthalene. Its complexes of nickel, copper
and cobalt were prepared. The vicdioxime and its complexes were charecterized by FT-IR, UV, 1H NMR, mass spectrometry, elemental analysis, DTA/TG analysis techniques and conductometric measurements.
Published in Russian in Zhurnal Obshchei Khimii, 2008, Vol. 78, No. 5, pp. 797–802.
The text was submitted by authors in English. 相似文献
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In this work, four fumaric acid adducts with different nitrogenous bases were synthesized and characterized with FT-IR, 1H NMR, 13C NMR and UV-Vis. spectroscopies. The solid-state structures of the compounds were determined by X-ray diffraction analysis. In addition, quantum chemical calculations employing density functional theory (DFT/B3LYP) method with the 6???311++G(d,p) basis set were performed to study the structural and spectroscopic properties of the compounds, and the results were compared with the experimental findings. X-ray analysis suggests that the crystal structures is stabilized by O–H···O, N–H···O, O–H···N and C–H···O type hydrogen bonds and also π···π stacking interactions. The harmony between the experimental and theoretical structural and spectroscopic data is acceptable in general. 相似文献
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Hydrostatic pressure and temperature effects on the binding energy and optical absorption of a multilayered quantum dot with a parabolic confinement
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The influence of hydrostatic pressure, temperature, and impurity on the electronic and optical properties of spherical core/shell/well/shell(CSWS) nanostructure with parabolic confinement potential is investigated theoretically. The energy levels and wave functions of the structure are calculated by using shooting method within the effective-mass approximation.The numerical results show that the ground state donor binding energy as a function layer thickness very sensitively depends on the magnitude of pressure and temperature. Also, we investigate the probability distributions to understand clearly electronic properties. The obtained results show that the existence of the pressure and temperature has great influence on the electronic and optical properties. 相似文献
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Sahin M Koca A Ozdemir N Dinçer M Büyükgüngör O Bal-Demirci T Ulküseven B 《Dalton transactions (Cambridge, England : 2003)》2010,39(42):10228-10237
The stable uranyl complexes, [UO(2)(L)C(9)H(19)OH], were obtained from 3,5-dichlorosalicyl-(L(I)) and salicyl-aldehyde-S-propyl-thiosemicarbazones (L(II)) with substituted-salicylaldehyde in nonyl alcohol. The structures of the complexes have been characterized by elemental analysis, IR, (1)H NMR, conductivity, magnetic moment measurements, cyclic voltammetry, thermal gravimetric analysis and single crystal X-ray diffraction technique. The U(VI) centre is seven-coordinated in a distorted pentagonal bipyramidal geometry. The relative orientations of the nonyl alcohol and S-propyl group in the title complexes are completely different due to different crystal packing. Electrochemical behaviors of the thiosemicarbazone ligands and the uranyl complexes were studied using cyclic voltammetry and square wave voltammetry. Redox processes of the compounds are significantly influenced by the central metal ions and the nature of substituents on the thiosemicarbazones, which are important factors in controlling the redox properties. In situ spectroelectrochemical studies were employed to determine the colors and spectra of electro-generated species of the complexes. 相似文献
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Synthesis,characterization and catalytic activity of Pd(II) complexes with N‐allyl functionalized imidazol‐2‐ylidenes in Suzuki–Miyaura reaction
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Rukiye Gümüşada Namık Özdemir M. Emin Günay Muharrem Dinçer Mustafa Serkan Soylu Bekir Çetinkaya 《应用有机金属化学》2014,28(5):324-331
A series of Pd–N‐heterocyclic carbene (Pd–NHC) complexes were synthesized and characterized by elemental analysis and spectroscopic methods. In addition, the molecular structures of 3c and 4c were determined by X‐ray diffraction studies. Finally, the performance of complexes 3 and 5 were studied on Suzuki–Miyaura reactions of phenylboronic acid with aryl bromides. Copyright © 2014 John Wiley & Sons, Ltd. 相似文献
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Muharrem Kunduraci 《Journal of Solid State Electrochemistry》2016,20(8):2105-2111
In the last decade, dealloying has become a popular and effective strategy to fabricate nanoporous metals used in electrochemical applications such as electrocatalysis and energy storage. This review article summarizes the recent literature on dealloyed non-noble metals and oxides evaluated as lithium-ion battery anode materials. The importance of dealloying parameters to achieve desired pore and ligament sizes is emphasized. A future research roadmap is also provided. 相似文献
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Volkan Eyupoglu Halil Ibrahim Turgut Emrah Polat Ahmet Kunduracioglu Muharrem Ekrem Koc Zubeyde Sener 《Journal of Dispersion Science and Technology》2017,38(1):110-120
Selective solvent extraction (SSX) of Cr(VI) and recovery was evaluated by using a homologous series of symmetric imidazolium bromide salts (SIMs) having various alkyl chain length. Therefore, propyl, pentyl, hexyl, octyl, and decyl substituted SIMs were used as an ion carrier. The executive parameters affecting both extraction and stripping conditions were investigated for optimization. Finally, a direct correlation was observed a between increasing alkyl chain length and selective Cr(VI) extraction from acidic solutions containing Cr(VI), Fe(III), Co(II), Cd(II), Ni(II). This relationship was reversed in the stripping conditions. Optimal extraction and stripping were obtained for SIM5 and SIM2 as 97.49% and 70.00%, respectively. 相似文献