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5.359 Aktuelle Fachpublikationen zum Thema temperature

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Cationic Polymer Chain Tethered on the Pore-wall of 3-D Ordered Macroporous Resin for the Removal of Hexavalent Chromium from Aqueous Solution

23.08.2015 | Author(s): Xiaomei Wang, Cuihong Wu, Lei Tian, Guohui Li, Xu Zhang, Feng Lei, Jiayan Qu, Pange Liu, Reactive and Functional Polymers, 2015

Publication date: Available online 18 August 2015 Source:Reactive and Functional Polymers Author(s): Xiaomei Wang, Cuihong Wu, Lei Tian, Guohui Li, Xu Zhang, Feng Lei, Jiayan Qu, Pange Liu A novel 3-D ordered macroporous (3DOM) adsorbent with a cationic polymer chain ...

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Studies on electrochemical properties of CuO–In2O3 based nanocomposites

23.08.2015 | Author(s): G. Mohan Kumar, A. Madhan Kumar, P. Ilanchezhiyan, T.W. Kang, Chemical Physics Letters, 2015

Publication date: 16 September 2015 Source:Chemical Physics Letters, Volume 637 Author(s): G. Mohan Kumar, A. Madhan Kumar, P. Ilanchezhiyan, T.W. Kang CuO–In2O3 based nanocomposites were synthesized through a facile wet chemical approach and their structural/morphological ...

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Molecules, Vol. 20, Pages 15304-15318: Optimization of Micellar Electrokinetic Chromatography Method for the Simultaneous Determination of Seven Hydrophilic and Four Lipophilic Bioactive Components in Three Salvia Species

21.08.2015 | Cao, Jiliang ; Hu, Ji ; Wei, Jinchao ; Li, Baocai ; Zhang, Mi ; Xiang, Cheng ; Li, Peng, Molecules, 2015

A micellar electrokinetic chromatography (MEKC) method was developed for the simultaneous determination of seven hydrophilic phenolic acids and four lipophilic tanshinones in three Salvia species. In normal MEKC mode using SDS as surfactant, the investigated 11 compounds could not be well ...

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General Ambient Temperature Benzylic Metalations Using Mixed-Metal Li/K-TMP Amide

21.08.2015 | Atul Manvar; Patricia Fleming; Donal F. O’Shea, The Journal of Organic Chemistry, 2015

Highly regioselective benzylic metalations in hydrocarbon solvent have been achieved at rt and 0 °C using a mixed-metal Li/K-TMP amide comprised of KOtBu, BuLi, and 2,2,6,6,-tetramethylpiperidine (TMP(H)). Mixing of KOtBu, BuLi, and TMP(H) in heptane gave a solution of the base mixture which when ...

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Highly Dynamic Coordination Behavior of Pn Ligand Complexes towards “Naked” Cu+ Cations

20.08.2015 | Martin Fleischmann, Stefan Welsch, Eugenia V. Peresypkina, Alexander V. Virovets, Manfred Scheer, Chemistry - A European Journal, 2015

Abstract Reactions of Cu+ containing the weakly coordinating anion [Al{OC(CF3)3}4]− with the polyphosphorus complexes [{CpMo(CO)2}2(μ,η2:η2‐P2)] (A), [CpM(CO)2(η3‐P3)] (M=Cr(B1), Mo (B2)), and [Cp*Fe(η5‐P5)] (C) are presented. The X‐ray structures of the products revealed mononuclear (4) and ...

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Low Temperature Colloidal Synthesis of Silicon Nanorods from Isotetrasilane, Neopentasilane, and Cyclohexasilane

20.08.2015 | Xiaotang Lu; Kenneth J. Anderson; Philip Boudjouk; Brian A. Korgel, Chemistry of Materials, 2015

Isotetrasilane, neopentasilane, and cyclohexasilane were studied as reactants for silicon (Si) nanorod growth in solution. These polysilane hydrides were found to enable lower growth temperatures in solution than any other silane reactants used to date. Cyclohexasilane enabled the lowest growth ...

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Controlled growth of PbI2 nanoplates for rapid preparation of CH3NH3PbI3 in planar perovskite solar cells

19.08.2015 | Fan Fu, Lukas Kranz, Songhak Yoon, Johannes Löckinger, Timo Jäger, Julian Perrenoud, Thomas Feurer, Christina Greten ..., physica status solidi (a), 2015

Absorbers for planar perovskite solar cells are often prepared by two‐step deposition methods, where a thick compact PbI2 layer is deposited followed by conversion to perovskite using CH3NH3I solution. The surface of the precursor layer quickly reacts with the CH3NH3I solution, which hinders ...

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Surface modification of TiO2 nanoparticles and preparation of TiO2/PDMS hybrid membrane materials

19.08.2015 | Tianjian Yang, Shoushan Sang, Xiao Zhao, Ziyong Zhang, Huaxin Rao, Polymer Composites, 2015

TiO2 nanoparticles were surface‐modified by a convenient and mild sol–gel method. A novel hybrid membrane material was prepared by crosslinking reaction based on poly(dimethylsiloxane) (PDMS) as organic matrix and TiO2 nanoparticles as inorganic filler as well as a crosslinking agent. The ...

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Visible‐Light‐Driven Oxidation of Organic Substrates with Dioxygen Mediated by a [Ru(bpy)3]2+/Laccase System

18.08.2015 | Ludovic Schneider, Yasmina Mekmouche, Pierre Rousselot‐Pailley, A. Jalila Simaan, Viviane Robert, Marius Réglier, Al ..., ChemSusChem, 2015

Abstract Oxidation reactions are highly important chemical transformations that still require harsh reaction conditions and stoichiometric amounts of chemical oxidants that are often toxic. To circumvent these issues, olefins oxidation is achieved in mild conditions upon irradiation of an ...

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Aqueous Titanium Trichloride‐Promoted Reductive Cyclization of o‐Nitrostyrenes to Indoles: Development and Application to the Synthesis of Rizatriptan and Aspidospermidine

18.08.2015 | Shuo Tong, Zhengren Xu, Mathias Mamboury, Qian Wang, Jieping Zhu, Angewandte Chemie International Edition, 2015

Abstract Treatment of o‐nitrostyrenes with aqueous TiCl3 solution at room temperature afforded indoles through a formal reductive C(sp2)–H amination process. A range of functions such as halides (Cl, Br), carbonyl (ester, carbamate), cyano, hydroxy, and amino groups were tolerated. From ...

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