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47.566 Aktuelle Fachpublikationen zum Thema temperature

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Probing structural patterns of ion association and solvation in mixtures of imidazolium ionic liquids with acetonitrile by means of relative 1H and 13C NMR chemical shifts

03.09.2015 | Bogdan A. Marekha; Oleg N. Kalugin; Marc Bria; Abdenacer Idrissi, Physical Chemistry Chemical Physics, 2015

Mixtures of ionic liquids (ILs) with polar aprotic solvents in different combinations and under different conditions (concentration, temperature etc.) are used widely in electrochemistry. However, little is known about the key intermolecular interactions in such mixtures depending on the nature ...

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Effect of monovalent cation doping on structure, microstructure, lattice distortion and magnetic behavior of single crystalline NdMnO3 compound

03.09.2015 | Anshuman Nandy; Swapan Kumar Pradhan, Dalton Transactions, 2015

Pure and 15mol% Na, K-doped NdMnO3 compounds with perovskite structure are prepared by sol-gel method. Tiny single crystals are formed after sintering the compounds at 1000°C. Effect of Na and K doping as well as effect of sintering temperature on formation and microstructure of NdMnO3 are ...

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First Report on SILAR Deposited Nanostructured Uranyl Sulphide Thin Films and Its Chemical Conversion to Silver Sulphide

03.09.2015 | Dipak Jagannath Garole; Sandesh Tetgure; Amulrao Uttamrao Borse; Yogesh R Toda; Vaman J Garole; Babasaheb R Sankapal ..., New Journal of Chemistry, 2015

This paper reports the novel synthesis of uranyl sulphide (UO2S) thin films using successive ionic layer adsorption and reaction (SILAR) technique at room temperature. Cationic exchange reaction was used to covert uranyl sulphide (UO2S) to silver sulphide (Ag2S). The influence of concentration ...

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Synthesis and investigation of intra-molecular charge transfer state properties of novel donor-acceptor-donor pyridine derivatives: The effects of temperature and environment upon molecular configurations and the origin of delayed fuluorescence

03.09.2015 | Murat Aydemir; Gulcin Haykir; Figen Türksoy; Selcuk Gumus; Fernando Dias; Andrew P Monkman, Physical Chemistry Chemical Physics, 2015

A novel series of donor-acceptor-donor (D-A-D) structured pyridine derivatives were synthesised and detailed photo-physical investigations made using mainly steady-state and time-resolved spectroscopy techniques at varying temperatures. The investigations showed that the molecules have solvent ...

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Enhanced electron spin rotation in CdS quantum dots

02.09.2015 | Yasuaki Masumoto; Hikaru Umino; Jianhui Sun; Eri Suzumura, Physical Chemistry Chemical Physics, 2015

We studied the spin rotation of electrons in CdS quantum dots (QDs) and CdS QDs with charge acceptors by means of time-resolved Faraday rotation (TRFR) at room temperature. The electron spin rotation gave an oscillatory component in TRFR signal and the oscillation frequency proportional to ...

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Tri-chromatic white-light emission from a single-phase Ca9Sc(PO4)7: Eu2+, Tb3+, Mn2+ phosphor for LED applications

02.09.2015 | Lihong Jiang; Ran Pang; Da Li; Wenzhi Sun; Yonglei Jia; Haifeng Li; Jipeng Fu; Chengyu Li; Su Zhang, Dalton Transactions, 2015

A series of single-phase Ca9Sc(PO4)7: Eu2+, Tb3+, Mn2+ phosphors for UV excitations were synthesized by high-temperature solid-state reaction. Energy transfer from Eu2+→Tb3+ and Eu2+→Mn2+ in Ca9Sc(PO4)7 sample is a feasible route to realize color-tunable emission because Ca9Sc(PO4)7 single-doped ...

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Anisotropic displacement parameters from dispersion-corrected DFT methods and their experimental validation by temperature-dependent X-ray diffraction

02.09.2015 | Janine George; Ai Wang; Volker L. Deringer; Ruimin Wang; Richard Dronskowski; Ulli Englert, CrystEngComm, 2015

In chemical crystallography, the thermal motion of scattering centers is commonly described by anisotropic displacement parameters (ADPs). Very recently, it has been shown that ADPs are not only accessible by diffraction experiments but also via theory: this emerging approach seems promising but ...

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Facile synthesis of core/shell ZnO/ZnS nanofibers by electrospinning and gas-phase sulfidation for biosensor applications

02.09.2015 | Anna Baranowska-Korczyc; Kamil Sobczak; Piotr Dłużewski; Anna Reszka; Bogdan J. Kowalski; Łukasz Kłopotowski; Danek ..., Physical Chemistry Chemical Physics, 2015

This study describes a new method of passivating ZnO nanofiber-based devices with a ZnS layer. This one-step process was carried out in H2S gas at room temperature, and resulted in the formation of core/shell ZnO/ZnS nanofibers. This study presents the structural, optical and electrical ...

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Metallic Particle Assemblies on Graphene

02.09.2015 | Gkikas, Manos, Organic Chemistry, 2015

Abstract: Different approaches to obtain metallic particles on graphene are discussed in this Review article and their applications in catalysis, electrocatalysis and surface enhanced Raman spectroscopy (SERS) are highlighted. Synthetic methods for well-dispersed metallic particles (Au, Ag, ...

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A new approach for reconstructing Holocene temperatures from a multi-species long chain alkenone record from Lake Qinghai on the northeastern Tibetan Plateau

30.08.2015 | Author(s): Zheng Wang, Zhonghui Liu, Fan Zhang, Mingyi Fu, Zhisheng An, Organic Geochemistry, 2015

Publication date: Available online 24 August 2015 Source:Organic Geochemistry Author(s): Zheng Wang, Zhonghui Liu, Fan Zhang, Mingyi Fu, Zhisheng An The extent of unsaturation in long chain alkenones (LCKs) in lakes has potential for quantitatively indicating paleotemperature in ...

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