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42.001 Aktuelle Fachpublikationen zum Thema temperature

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New annealing method to improve KD2PO4 crystal quality: learning from high temperature phase transition

27.05.2015 | Lisong Zhang; Mingxia Xu; Baoan Liu; Lili Zhu; Bo Wang; Hailiang Zhou; Fafu Liu; Xun Sun, CrystEngComm, 2015

CrystEngComm, 2015, Accepted ManuscriptDOI: 10.1039/C5CE00813A, Paper Lisong Zhang, Mingxia Xu, Baoan Liu, Lili Zhu, Bo Wang, Hailiang Zhou, Fafu Liu, Xun SunThis is an Accepted Manuscript, which has been through the RSC Publishing peer review process and has been accepted for publication. ...

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Molecular diffusion and dc conductivity perfectly correlated with molecular rotational dynamics in a plastic crystalline electrolyte

27.05.2015 | Manesh Zachariah; Michela Romanini; Pragya Tripathi; Josep Lluis Tamarit; Roberto Macovez, Physical Chemistry Chemical Physics, 2015

We probe the ion conduction and the molecular dynamics in a pure and lithium-salt doped dinitrile molecular plastic crystal. While the diffusion of the Li+ ions is decoupled from the molecular reorientational dynamics, in the undoped plastic crystal the temperature dependence of the mobility of ...

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Phase diagrams of nanoalloys: influence of size and morphology

27.05.2015 | F. Berthier; E. Maras; B. Legrand, Physical Chemistry Chemical Physics, 2015

The size dependence of the phase diagram of nanoalloys with a tendency to phase separate is investigated. As the critical temperature may depend on both the size and the morphology of the nanoparticles, we consider nanowires with different cross-sections and also nanotubes with different ...

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An Efficient and Practical Approach to Trifluoromethylthiolation of [small alpha]-Haloketones/[small alpha]-Haloarylmethanes

27.05.2015 | Min Jiang; Fangxia Zhu; Haoyue Xiang; Xing Xu; Lianfu Deng; Chunhao Yang, Organic & Biomolecular Chemistry, 2015

An efficient and practical approach to trifluoromethylthiolation of α-haloketones/α-haloarylmethanes was developed. The transformation employs only AgSCF3 and KI to in situ generate active nucleophilic trifluoromethylthio species and cleanly occurs in up to quantitative yield at room temperature, ...

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Pd(II) catalyzed ortho C–H iodination of phenylcarbamates at room temperature using cyclic hypervalent iodine reagents

27.05.2015 | Xiuyun Sun; Xia Yao; Chao Zhang; Yu Rao, Chemical Communication, 2015

A novel approach to access ortho iodinated phenols using cyclic hypervalent iodine reagents through palladium(ii) catalyzed C–H activation has been developed through weak coordination. The reaction showed excellent regioselectivity, reactivity and good functional group tolerance. A unique ...

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Surface oxygen-vacancy induced photocatalytic activity of La(OH)3 nanorods prepared by a fast and scalable method

27.05.2015 | Fan Dong; Xiang Xiao; Guangming Jiang; Yuxin Zhang; Wen Cui; Jinzhu Ma, Physical Chemistry Chemical Physics, 2015

Uniform one-dimensional defective La(OH)3 nanorods were synthesized by a facile, fast and scalable method. This simple method avoids treatment at high temperature, utility of surfactants or templates, and can be finished within a short time. The results indicate that oxygen-vacancies were formed ...

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A facile approach to fabricate porous UMCM-150 nanostructures and their adsorption behavior for methylene blue from aqueous solution

27.05.2015 | Ji-Min Yang; Qing Liu; Yan-Shang Kang; Wei-Yin Sun, CrystEngComm, 2015

Well-dispersed hierarchical flower-like and net-like architectures of UMCM-150 were successfully prepared by a facile and rapid method at room temperature. Owing to the high surface area and pore volume, the UMCM-150 flower-like nanostructures exhibit excellent adsorption capability for the dye ...

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The influence of source molecule structure on the low temperature growth of nitrogen-doped graphene

27.05.2015 | Tokio Katoh; Gaku Imamura; Seiji Obata; M. Bhanuchandra; Graeme Copley; Hideki Yorimitsu; Koichiro Saiki, Physical Chemistry Chemical Physics, 2015

Doping of heteroatoms such as nitrogen into the lattice structure of graphene can tune and tailor the overall electronic properties. N-doped graphene, depending on the nitrogen bonding mode and/or bonding configuration, displays subtly altered properties in comparison to pristine graphene. ...

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Dumbbell Stanane: A large-gap quantum spin Hall insulator

27.05.2015 | Xin Chen; Linyang Li; Mingwen Zhao, Physical Chemistry Chemical Physics, 2015

Quantum spin Hall (QSH) effect is quite promising for applications in spintronics and quantum computations, but presently can only be achieved at ultralow temperature. Searching for large-gap QSH insulators is the key to increase the operating temperature. Using first-principles calculations, we ...

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1D Iron(II) Spin Crossover Coordination Polymers with 3,3[prime or minute]-Azopyridine - kinetic trapping effects and spin transition above room temperature

26.05.2015 | Sophie Schönfeld; Charles Lochenie; Peter Thoma; Birgit Weber, CrystEngComm, 2015

Two new iron(II) 1D coordination polymers with spin crossover behaviour were synthesised using 3,3’-azopyridine as bridging axial ligand and N2O2 coordinating Schiff base-like equatorial ligands. The X-ray structures of both complexes were solved revealing a very different packing pattern for the ...

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