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452 Aktuelle Fachpublikationen zum Thema temperature

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ChemInform Abstract: Recent Progress in High Temperature Permanent Magnetic Materials

20.11.2014 | Cheng‐Bao Jiang, Shi‐Zhong An, ChemInform, 2014

Abstract Review: focus on SmCo‐based magnets; 52 refs.


ChemInform Abstract: Kinetics vs. Thermodynamics: A Unique Crystal Transformation from a Uranyl Peroxo‐Nanocluster to a Nanoclustered Uranyl Polyborate.

20.11.2014 | Yingjie Zhang, Mohan Bhadbhade, Jason R. Price, Inna Karatchevtseva, David Collison, Gregory R. Lumpkin, ChemInform, 2014

Abstract Reaction of UO2(NO3)2, NaOH, H2O2, and H3BO3 in aqueous solution leads to the formation of yellow crystals of Na14 [(UO2)(O2)1.5] 28·nH2O (I) at pH 8.5 within a few days, followed by transformation of (I) at room temperature to light yellow‐green crystals of Na6 [UO2{B16O24(OH)8}] ...


ChemInform Abstract: Mg2SiO4:Tb3+ Nanophosphor: Auto Ignition Route and Near UV Excited Photoluminescence Properties for WLEDs.

13.11.2014 | Ramachandra Naik, S. C. Prashantha, H. Nagabhushana, H. P. Nagaswarupa, K. S. Anantharaju, S. C. Sharma, B. M. Nagab ..., ChemInform, 2014

Abstract Nanoparticles of Tb3+ doped (1—11 mol%) Mg2SiO4 are prepared by low temperature solution combustion with stoichiometric amounts of Mg(NO3)2 and fumed SiO2 as precursor and oxalyl di‐hydrazide (ODH) as fuel.


ChemInform Abstract: N‐Chlorosuccinimide‐Promoted Regioselective Sulfenylation of Imidazoheterocycles at Room Temperature.

13.11.2014 | Chitrakar Ravi, Darapaneni Chandra Mohan, Subbarayappa Adimurthy, ChemInform, 2014

Abstract The novel protocol allows the regioselective sulfenylation of a wide variety of imidazoheterocycles under mild and metal‐free reaction conditions.


ChemInform Abstract: Crystal Structure, Energy Band and Optical Properties of Dysprosium Monophosphate DyPO4.

13.11.2014 | Z. Khadraoui, C. Bouzidi, K. Horchani‐Naifer, M. Ferid, ChemInform, 2014

Abstract Single crystals of DyPO4 are prepared by high temperature solid state reaction of a 1:20 mixture of Dy2O3 and NH4H2PO4 (1273 K, 1 d; controlled cooling).


ChemInform Abstract: Low Temperature Synthesis and Structures of Alkaline Earth Metal Chalcogenides Ba3Cu4SbS6OH, BaCuSbS3 and BaCu2S2.

13.11.2014 | Zhimin Ma, Fan Weng, Qiuran Wang, Qun Tang, Ganghua Zhang, Chong Zheng, Ray P. S. Han, Fuqiang Huang, ChemInform, 2014

Abstract A mixture of Ba3Cu4SbS6OH (I) and BaCuSbS3 (II) is hydrothermally synthesized by reaction of Cu, Sb, S, and Ba(OH)2 in H2O (autoclave, 200 °C, 48—82 h).


ChemInform Abstract: Stereoselective Synthesis of α‐(Dichloromethyl)amines, α‐(Chloromethyl)amines, and α‐Chloroaziridines.

13.11.2014 | Desheng Li, Ya Li, Zhiqiu Chen, Huaqi Shang, Hongsen Li, Xinfeng Ren, ChemInform, 2014

Abstract The diastereoselective reaction of aldimines (I) with silane (II) at low temperature give α‐(dichloromethyl)amines (III) whereas aziridines (IV) are obtained when the reaction mixture is warmed up to room temperature.


ChemInform Abstract: A Fracture‐Resistant High‐Entropy Alloy for Cryogenic Applications.

06.11.2014 | Bernd Gludovatz, Anton Hohenwarter, Dhiraj Catoor, Edwin H. Chang, Easo P. George, Robert O. Ritchie, ChemInform, 2014

Abstract A CrMnFeCoNi alloy is prepared by arc melting the elements and drop casting into copper molds, followed by cold forging and cross rolling at room temperature into sheets roughly 10 mm thick.


ChemInform Abstract: B(C6F5)3 Promoted Cyclization of Internal Propargyl Esters: Structural Characterization of 1,3‐Dioxolium Compounds.

06.11.2014 | Max M. Hansmann, Rebecca L. Melen, Frank Rominger, A. Stephen K. Hashmi, Douglas W. Stephan, ChemInform, 2014

Abstract The products are remarkably stable toward moisture and temperature allowing the characterization of (IIIa) and (IIIb) by X‐ray analysis.


ChemInform Abstract: Efficient and Selective Copper‐Catalyzed Organic Solvent‐Free and Biphasic Oxidation of Aromatic gem‐Disubstituted Alkenes to Carbonyl Compounds by tert‐Butyl Hydroperoxide at Room Temperature.

06.11.2014 | Md. Munkir Hossain, Wei‐Kai Huang, Hung‐Jie Chen, Pei‐Han Wang, Shin‐Guang Shyu, ChemInform, 2014

Abstract A simple catalyst system for the selective oxidative C—C double bond cleavage of gem‐disubstituted alkenes (I) is reported.


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