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639 Aktuelle Fachpublikationen zum Thema temperature

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ChemInform Abstract: Stable Room Temperature Magnetic Ordering and Excellent Catalytic Activity of Mechanically Activated High Surface Area Nanosized Ni0.45Zn0.55Fe2O4.

19.11.2015 | S. Dey, R. Gomes, R. Mondal, S. K. Dey, P. Dasgupta, A. Poddar, V. R. Reddy, A. Bhaumik, S. Kumar, ChemInform, 2015

Abstract Nanosized Ni0.45Zn0.55Fe2O4 (≈12 nm) is prepared by high‐energy ball milling of powders of extremely pure Ni0.45Zn0.55Fe2O4 (330 rpm, 50 h) which itself is obtained by sintering and annealing of the metal oxides (950 °C, 12 h and 700 °C, 12 h).


ChemInform Abstract: Spin and Orbital Magnetism in Free Nanoparticles: Size, Composition, and Temperature Effects

12.11.2015 | J. Dorantes‐Davila, G. M. Pastor, ChemInform, 2015

Abstract Review: 141 refs.


ChemInform Abstract: Functional Properties of Sm2NiMnO6 Multiferroic Ceramics Prepared by Spark Plasma Sintering.

27.10.2015 | Felicia Gheorghiu, Lavinia Curecheriu, Isabelle Lisiecki, Patricia Beaunier, Simona Feraru, Mircea N. Palamaru, Vale ..., ChemInform, 2015

Abstract Sm2NiMnO6 is prepared by auto‐combustion of a dried gel formed by heating a HNO3 solution of Sm(NO3)3, Ni(NO3)2, Mn, and citric acid (150 °C ignition temperature).


ChemInform Abstract: Discovery of γ‐MnP4 and the Polymorphism of Manganese Tetraphosphide.

27.10.2015 | Dennis B. Henge, Martin Hermus, Christian F. Litterscheid, Norbert Wagner, Johannes Beck, Barbara Albert, Jakoah Brgoch, ChemInform, 2015

Abstract The new title polymorph of MnP4 is synthesized by chemical vapor transport of a stoichiometric mixture of manganese and red phosphorus using iodine as transporting agent (evacuated silica tubes, temperature gradient 1073→923 K, 14 d).


ChemInform Abstract: La6Ba3[Si17N29O2]Cl — An Oxonitridosilicate Chloride with Exceptional Structural Motifs.

22.10.2015 | Dajana Durach, Felix Fahrnbauer, Oliver Oeckler, Wolfgang Schnick, ChemInform, 2015

Abstract The novel title compound is prepared from a mixture of LaCl3, “Si2(NH)3·6NH4Cl” (the ammonolysis product of Si2Cl6), and BaH2 (W crucible, radiofrequency furnace, N2, heating to 1600 °C within 4 h followed by quenching to room temperature).


ChemInform Abstract: Broensted Base‐Catalyzed α‐Oxygenation of Carbonyl Compounds Utilizing the [1,2]‐Phospha‐Brook Rearrangement.

22.10.2015 | Azusa Kondoh, Masahiro Terada, ChemInform, 2015

Abstract A tandem reaction to give access to compounds (VII) under low temperature is also presented.


ChemInform Abstract: The Remarkable Catalytic Activity of Ultra‐Small Free‐CeO2 Nanoparticles in Selective Carbon—Carbon Bond Formation Reactions in Water at Room Temperature.

22.10.2015 | Subhash Banerjee, ChemInform, 2015

Abstract A simple and efficient protocol for selective bis‐Michael addition and mono‐allylation of active methylene compounds is presented using ultra‐small (size ≈5 nm) uncapped cerium oxide nanoparticles as a reusable catalyst in water.


ChemInform Abstract: P2Et Phosphazene: A Mild, Functional Group Tolerant Base for Soluble, Room Temperature Pd‐Catalyzed C—N, C—O, and C—C Cross‐Coupling Reactions.

22.10.2015 | Alexander Buitrago Santanilla, Melodie Christensen, Louis‐Charles Campeau, Ian W. Davies, Spencer D. Dreher, ChemInform, 2015

Abstract The organic superbase P2‐Et is shown to possess distinct reactivity across a diverse set of cross‐coupling reactions at room temperature.


ChemInform Abstract: Discovery of a Sodium‐Ordered Form of Na3V2(PO4)3 below Ambient Temperature.

22.10.2015 | Jean‐Noel Chotard, Gwenaelle Rousse, Renald David, Olivier Mentre, Matthieu Courty, Christian Masquelier, ChemInform, 2015

Abstract NASICON‐type Na3V2(PO4)3 (NVP) single phase powder is prepared by solid state reaction of a 3:1 molar mixture of NaH2PO4 and V2O5 under Ar (900 °C, 20 h; 1 °C/min cooling rate).


ChemInform Abstract: Thermal Stability and High Temperature Polymorphism of Topochemically‐Prepared Dion—Jacobson Triple‐Layered Perovskites.

15.10.2015 | Stephen L. Guertin, Elisha A. Josepha, Dariush Montasserasadi, John B. Wiley, ChemInform, 2015

Abstract The Dion—Jacobson related triple layered perovskites ACa2Nb3O10 (A: H, NH4, Li, Na, K, CuCl) are prepared by topochemical ion exchange of RbCa2Nb3O10 with ANO3 or CuCl2 (alumina crucible, 60, 200, 350, 400, 400, 335 °C, resp., 4 d).


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