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5.279 Aktuelle Fachpublikationen zum Thema temperature

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Self-organizing behaviour of glycosteroidal bolaphiles: insights into lipidic microsegregation

26.11.2014 | R. Xu; F. Ali-Rachedi; N. M. Xavier; S. Chambert; F. Ferkous; Y. Queneau; S. J. Cowling; E. J. Davis; J. W. Goodby, Organic & Biomolecular Chemistry, 2014

In this article we describe work on the synthesis of bolaphile biomimics composed of glucose head groups and steroidal units linked together by a methylene chain of varying length. The condensed phases formed by self-organization of the products as a function of temperature were characterized by ...

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Yttrium hydroxide fluoride based monodisperse mesocrystals: additive-free synthesis, enhanced fluorescence properties, and potential applications in temperature sensing

25.11.2014 | Xianghong He; Bing Yan, CrystEngComm, 2014

Pure and Eu3+-doped yttrium hydroxide fluoride (YHF) monodisperse mesocrystals were fabricated via an additive-free hydrothermal route. Each of the cantaloupe-like architectures is an assembly of aligned nanorod subunits in a side-by-side manner. The Eu3+-activated YHF mesocrystals exhibited ...

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Synthesis and characterization of high wash fastness novel azo reactive dyes incorporating aromatic bridged diamines

23.11.2014 | Author(s): Aamer Saeed , Ghulam Shabir, Arabian Journal of Chemistry, 2014

Publication date: Available online 11 November 2014 Source:Arabian Journal of Chemistry Author(s): Aamer Saeed , Ghulam Shabir A new series of azo reactive dyes containing free chlorine atoms have been synthesized. The synthetic methodology involves the diazotization of 4′4-diamino ...

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Novel heterocyclic poly(pyridine‐imide)s with unsymmetric carbazole substituent and noncoplanar structure: High thermal, mechanical and optical transparency, electrochemical, and electrochromic properties

21.11.2014 | Ying‐Chi Huang, Kun‐Li Wang, Wei‐Yi Lee, Yi‐An Liao, Der‐Jang Liaw, Kueir‐Rarn Lee, Juin‐Yih Lai, Journal of Polymer Science Part A: Polymer Chemistry, 2014

ABSTRACT A diamine containing heterocyclic pyridine and unsymmetrical carbazole substituents, 4‐(9‐ethyl‐3‐carbazole)‐2,6‐bis(4‐aminophenyl)pyridine (CBAPP), was prepared for use in the synthesis of poly(pyridine‐imide)s PI‐1–8 by direct polycondensation with dianhydrides in ...

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Facile Synthesis of Ba1–xKxFe2As2 Superconductors via Hydride Route

21.11.2014 | Julia V. Zaikina; Maria Batuk; Artem M. Abakumov; Alexandra Navrotsky; Susan M. Kauzlarich, Journal of the American Chemical Society, 2014

We have developed a fast, easy, and scalable synthesis method for Ba1–xKxFe2As2 (0 ≤ x ≤ 1) superconductors using hydrides BaH2 and KH as a source of barium and potassium metals. Synthesis from hydrides provides better mixing and easier handling of the starting materials, consequently leading to ...

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Redox Properties of CeO2 at Low Temperature: The Direct Synthesis of Imines from Alcohol and Amine

21.11.2014 | Masazumi Tamura, Keiichi Tomishige, Angewandte Chemie International Edition, 2014

Abstract We disclosed the redox properties of CeO2 in organic reactions at low temperature of 303 K. CeO2 works as the most effective heterogeneous catalyst for imine formation from benzyl alcohol and aniline at 303 K among various metal oxides and showed more than 38‐fold higher activity than ...

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Iron Nitrate/TEMPO: a Superior Homogeneous Catalyst for Oxidation of Primary Alcohols to Nitriles in Air

21.11.2014 | Shashikant U. Dighe, Deepan Chowdhury, Sanjay Batra, Advanced Synthesis & Catalysis, 2014

Abstract A highly practical, one‐step, facile synthesis of aromatic, heteroaromatic, allylic and aliphatic nitriles from primary alcohols catalyzed by ferric nitrate [Fe(NO3)3⋅9H2O] in the presence of TEMPO, aqueous ammonia and air at room temperature is described.

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Defect‐enhanced F– ion conductivity in layer‐structured nanocrystalline BaSnF4 prepared by high‐energy ball milling combined with soft annealing

20.11.2014 | Florian Preishuber‐Pflügl, Viktor Epp, Suliman Nakhal, Martin Lerch, Martin Wilkening, physica status solidi (c), 2014

Abstract Fast ion conductors play one of the most important roles in solid state ionics as there is a great demand for their application in safe and powerful electrochemical energy storage systems. For such materials, it is known that the synthesis conditions may have significant impact on the ...

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Dual Emission and Excited-State Mixed-Valence in a Quasi-Symmetric Dinuclear Ru–Ru Complex

20.11.2014 | Christoph Kreitner; Markus Grabolle; Ute Resch-Genger; Katja Heinze, Inorganic Chemistry, 2014

The synthesis and characterization of the new dinuclear dipeptide [(EtOOC-tpy)Ru(tpy-NHCO-tpy)Ru(tpy-NHCOCH3)]4+ 34+ of the bis(terpyridine)ruthenium amino acid [(HOOC-tpy)Ru(tpy-NH2)]2+ 12+ are described, and the properties of the dipeptide are compared to those of the mononuclear complex ...

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Palladium-Catalyzed Stereoretentive Olefination of Unactivated C(sp3)–H Bonds with Vinyl Iodides at Room Temperature: Synthesis of β-Vinyl α-Amino Acids

20.11.2014 | Bo Wang; Chengxi Lu; Shu-Yu Zhang; Gang He; William A. Nack; Gong Chen, Organic Letters, 2014

Organic Letters DOI: 10.1021/ol503248f

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