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57.469 Aktuelle Fachpublikationen zum Thema temperature

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A green approach for the synthesis of 2‐oxazolidinones using gold(I) complex immobilized on KCC‐1 as nanocatalyst at room temperature

24.06.2016 | Seyed Mohsen Sadeghzadeh, Applied Organometallic Chemistry, 2016

A novel gold(I)‐containing ionic liquid‐based KCC‐1 catalyst was applied for the cyclization of propargylic amines with CO2 to provide 2‐oxazolidinones. High catalytic activity and ease of recovery from the reaction mixture using an external magnet, and several recycle runs without significant ...

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Role of Dynamic Asymmetry on the Collective Dynamics of Comblike Polymers: Insights from Neutron Spin-Echo Experiments and Coarse-Grained Molecular Dynamics Simulations

24.06.2016 | Arantxa Arbe; Angel J. Moreno; Jürgen Allgaier; Oxana Ivanova; Peter Fouquet; Juan Colmenero; Dieter Richter, Macromolecules, 2016

We investigate the collective dynamics of comblike polymers displaying nanosegregation in side groups and main-chain rich domains, where side groups and backbones are dynamically equivalent. Neutron spin-echo experiments on poly(alkylene oxide)s with increasing side-group length have been focused ...

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Carbon-Based Adsorbents for Postcombustion CO2 Capture: A Critical Review

24.06.2016 | Anne Elise Creamer; Bin Gao, Environmental Science & Technology, 2016

The persistent increase in atmospheric CO2 from anthropogenic sources makes research directed toward carbon capture and storage imperative. Current liquid amine absorption technology has several drawbacks including hazardous byproducts and a high-energy requirement for regeneration; therefore, ...

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Growth, composition, ferroelectric and magnetic properties of new multiferroic Pb3.3Mn4.8Ni1.1Ti0.56O15.3 single crystals

23.06.2016 | V. Tomov, P. M. Rafailov, Chih‐Wei Luo, Crystal Research and Technology, 2016

Multiferroic single crystals in the novel system Pb‐Mn‐Ni‐Ti‐O have been grown by the high temperature solution growth method. At room temperature the crystals are indexed in the hexagonal space group P63cm. The dielectric and magnetic properties along with the temperature dependence of the ...

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ChemInform Abstract: Facile One‐Pot Three‐Component Synthesis of Diverse 2,3‐Disubstituted Isoindolin‐1‐ones Using ZrO2 Nanoparticles as a Reusable Dual Acid—Base Solid Support under Solvent‐Free Conditions.

23.06.2016 | Kamalesh Debnath, Sayan Mukherjee, Chandan Bodhak, Animesh Pramanik, ChemInform, 2016

Abstract The method is operationally simple and proceeds with reduced reaction time and temperature, with high functional group tolerance and without the use of a solvent.

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ChemInform Abstract: NaHCO3‐Catalyzed Highly Regiospecific Aminobromination of β,β‐Dicyanostyrene Derivatives with 1,3‐Dibromo‐5,5‐dimethylhydantoin (DBDMH).

23.06.2016 | Zhanguo Chen, Wei Xia, De'e Liu, Yali Liu, Manfei Du, Chenxi Cao, ChemInform, 2016

Abstract The aminobromination affords vicinal haloamino products with high regioselectivities at room temperature under aerobic conditions.

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ChemInform Abstract: Triacetic Acid Lactone as a Common Intermediate for the Synthesis of 4‐Hydroxy‐2‐pyridones and 4‐Amino‐2‐pyrones.

23.06.2016 | George A. Kraus, Umayangani K. Wanninayake, Jashaun Bottoms, ChemInform, 2016

Abstract Triacetic acid lactones (I) and (IV) react with amines at room temperature to yield 4‐aminopyrans (VI).

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Electronic transport in p‐type Mg‐doped GaAs nanowires

23.06.2016 | N. Cifuentes, H. Limborço, E. R. Viana, D. B. Roa, A. Abelenda, M. I. N. da Silva, M. V. B. Moreira, G. M. Ribeiro, ..., physica status solidi (b), 2016

The electronic transport properties of several Mg‐doped GaAs nanowires are investigated. It is shown that Mg can be successfully used as a nontoxic and noncarcinogenic p‐type dopant in GaAs nanowires. The doping levels, expanding over two orders of magnitude, and free holes mobility in the NW ...

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Production, purification, and characterization of carboxymethyl cellulase from novel strain Bacillus megaterium

23.06.2016 | Zeeshan Hussain Shahid, Muhammad Irfan, Muhammad Nadeem, Quratulain Syed, Javed Iqbal Qazi, Environmental Progress, 2016

In the present investigation a strain of Bacillus megaterium BM05 was evaluated for cellulase production in submerged fermentation using wheat straw as a substrate. Various nutritional and cultural parameters were optimized to obtain maximum production of carboxymethyl cellulase. The strain ...

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High-Performance All-Solid-State Lithium–Sulfur Battery Enabled by a Mixed-Conductive Li2S Nanocomposite

23.06.2016 | Fudong Han; Jie Yue; Xiulin Fan; Tao Gao; Chao Luo; Zhaohui Ma; Liumin Suo; Chunsheng Wang, Nano Letters, 2016

All-solid-state lithium–sulfur batteries (ASSLSBs) using highly conductive sulfide-based solid electrolytes suffer from low sulfur utilization, poor cycle life, and low rate performance due to the huge volume change of the electrode and the poor electronic and ionic conductivities of S and Li2S. ...

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