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606 Aktuelle Fachpublikationen zum Thema temperature

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Soft Template Strategy to Synthesize Iron Oxide–Titania Yolk–Shell Nanoparticles as High‐Performance Anode Materials for Lithium‐Ion Battery Applications

02.04.2015 | Joohyun Lim, Ji Hyun Um, Jihoon Ahn, Seung‐Ho Yu, Yung‐Eun Sung, Jin‐Kyu Lee, Chemistry - A European Journal, 2015

Abstract Yolk–shell‐structured nanoparticles with iron oxide core, void, and a titania shell configuration are prepared by a simple soft template method and used as the anode material for lithium ion batteries. The iron oxide–titania yolk–shell nanoparticles (IO@void@TNPs) exhibit a higher and ...

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Towards Solar Energy Storage in the Photochromic Dihydroazulene–Vinylheptafulvene System

01.04.2015 | Martina Cacciarini, Anders B. Skov, Martyn Jevric, Anne S. Hansen, Jonas Elm, Henrik G. Kjaergaard, Kurt V. Mikkelse ..., Chemistry - A European Journal, 2015

Abstract One key challenge in the field of exploitation of solar energy is to store the energy and make it available on demand. One possibility is to use photochromic molecules that undergo light‐induced isomerization to metastable isomers. Here we present efforts to develop solar thermal ...

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Pincer‐Type Platinum(II) Complexes Containing N‐Heterocyclic Carbene (NHC) Ligand: Structures, Photophysical and Anion‐Binding Properties, and Anticancer Activities

01.04.2015 | Kai Li, Taotao Zou, Yong Chen, Xiangguo Guan, Chi‐Ming Che, Chemistry - A European Journal, 2015

Abstract Two classes of pincer‐type PtII complexes containing tridentate N‐donor ligands (1–8) or C‐deprotonated N^C^N ligands derived from 1,3‐di(2‐pyridyl)benzene (10–13) and auxiliary N‐heterocyclic carbene (NHC) ligand were synthesized. [Pt(trpy)(NHC)]2+ complexes 1–5 display green ...

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Liquid‐Crystalline Properties of trans‐A2B2‐Porphyrins with Extended π‐Electron Systems

30.03.2015 | Mirosław Salamończyk, Damian Pociecha, Agnieszka Nowak‐Król, Dominik Koszelewski, Daniel T. Gryko, Ewa Górecka, Chemistry - A European Journal, 2015

Abstract Incorporation of four trialkoxyphenyl substituents combined with extending the π‐conjugated system has allowed porphyrins to display liquid‐crystalline columnar phases at room temperature. 2D and 3D columnar structures were observed as well as a biaxial smectic phase. Smectic ...

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Ln0.5A0.5MnO3 (Ln=Lanthanide, A= Ca, Sr) Perovskites Exhibiting Remarkable Performance in the Thermochemical Generation of CO and H2 from CO2 and H2O

25.03.2015 | Sunita Dey, B. S. Naidu, C. N. R. Rao, Chemistry - A European Journal, 2015

Abstract Perovskite oxides of the Ln0.5A0.5MnO3 (Ln=lanthanide, A=Sr, Ca) family have been investigated for the thermochemical splitting of H2O and CO2 to produce H2 and CO respectively. The amounts of O2 and CO produced strongly depend on the size of the rare earth ions and alkaline earth ...

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Stabilization of a Bimolecular Triplex by 3′‐S‐Phosphorothiolate Modifications: An NMR and UV Thermal Melting Investigation

20.03.2015 | Kathryn Evans, Inder Bhamra, Richard T. Wheelhouse, John R. P. Arnold, Richard Cosstick, Julie Fisher, Chemistry - A European Journal, 2015

Abstract Triplexes formed from oligonucleic acids are key to a number of biological processes. They have attracted attention as molecular biology tools and as a result of their relevance in novel therapeutic strategies. The recognition properties of single‐stranded nucleic acids are also ...

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Bismetal Complexes of 5,20‐Bis(5‐formyl‐2‐pyrrolyl)‐[26]hexaphyrin(1.1.1.1.1.1) Exhibiting Strong Near‐Infrared Region Absorptions

16.03.2015 | Hirotaka Mori, Atsuhiro Osuka, Chemistry - A European Journal, 2015

Abstract [26]Hexaphyrin(1.1.1.1.1.1) bearing two 5‐formyl‐2‐pyrrolyl groups at the 5‐ and 20‐positions was prepared by cross‐condensation of 5,10‐bis(pentafluorophenyl)‐substituted tripyrrane with 2,5‐diformylpyrrole as an effective binuclear metal‐coordinating ligand, owing to the two ...

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Synthesis of One‐Dimensional Schiff Base Polymers that Contain an Oligothiophene Building Block on the Graphite Surface

16.03.2015 | Xiu‐Ling Sun, Li‐Xia Fan, Yong‐Jing Yang, Zongxia Guo, Wei Quan Tian, Shengbin Lei, Chemistry - A European Journal, 2015

Abstract Surface‐mediated Schiff base coupling reactions between oligothiophenes equipped with an aldehyde group and aromatic diamines were investigated on highly oriented pyrolytic graphite (HOPG) by means of scanning tunneling microscopy (STM) under ambient conditions. To investigate the ...

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Synthesis of Cu3Sn Alloy Nanocrystals through Sequential Reduction Induced by Gradual Increase of the Reaction Temperature

16.03.2015 | Sanghun Cho, Dong‐Hun Shin, Zhenxing Yin, Chaedong Lee, Si Yun Park, Jeeyoung Yoo, Yuanzhe Piao, Youn Sang Kim, Chemistry - A European Journal, 2015

Abstract Cu3Sn alloy nanocrystals are synthesized by sequential reduction of Cu and Sn precursors through a gradual increase of the reaction temperature. By transmission electron microscopy (TEM), energy‐dispersive X‐ray spectroscopy (EDS), UV/Vis spectroscopy, and X‐ray diffraction (XRD) ...

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Amending the Anisotropy Barrier and Luminescence Behavior of Heterometallic Trinuclear Linear [MIILnIIIMII] (LnIII=Gd, Tb, Dy; MII=Mg/Zn) Complexes by Change from Divalent Paramagnetic to Diamagnetic Metal Ions

13.03.2015 | Sourav Das, K. S. Bejoymohandas, Atanu Dey, Sourav Biswas, M. L. P. Reddy, Roser Morales, Eliseo Ruiz, Silvia Titos‐ ..., Chemistry - A European Journal, 2015

Abstract The sequential reaction of a multisite coordinating compartmental ligand [2‐(2‐hydroxy‐3‐(hydroxymethyl)‐5‐methylbenzylideneamino)‐2‐methylpropane‐1,3‐diol] (LH4) with appropriate lanthanide salts followed by the addition of [Mg(NO3)2]⋅6 H2O or [Zn(NO3)2]⋅6 H2O in a 4:1:2 ...

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