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68.522 Aktuelle Fachpublikationen zum Thema temperature

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High-pressure discovery of [small beta]-NiBi

19.01.2018 | K. M. Powderly; S. M. Clarke; M. Amsler; C. Wolverton; C. D. Malliakas; Y. Meng; S. D. Jacobsen; D. E. Freedman, Chemical Communication, 2018

Herein, we present the discovery of a new high-pressure phase in the Ni–Bi system, β-NiBi, which crystallizes in the TlI structure type. The powerful technique of in situ high-pressure and high-temperature powder X-ray diffraction enabled observation of the formation of β-NiBi and its reversible ...

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Influence of temperature gradients on charge transport in asymmetric nanochannels

19.01.2018 | Anne M. Benneker; Hans David Wendt; Rob G. H. Lammertink; Jeffery A. Wood, Physical Chemistry Chemical Physics, 2018

Charge selective asymmetric nanochannels are used for a variety of applications, such as nanofluidic sensing devices and energy conversion applications. In this paper, we numerically investigate the influence of an applied temperature difference over tapered nanochannels on the resulting charge ...

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A method of packaging molecule/cell-patterns in an open space into a glass microfluidic channel by combining pressure-based low/room temperature bonding and fluorosilane patterning

19.01.2018 | Shun-ichi Funano; Nobutoshi Ota; Asako Sato; Yo Tanaka, Chemical Communication, 2018

We report a fabrication method of a “post-molecule/cell patterned” glass microchip using pressure-based low/room temperature bonding in dry conditions combined with fluorosilane patterning. Multiple proteins/cells were patterned in a single channel using this method. This simple method will ...

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Allowing the direct interaction of N-aryl [small alpha]-diimines with a high valent metal chloride: one-pot WCl6-promoted formation of quinoxalinium salts

19.01.2018 | Niccolò Bartalucci; Marco Bortoluzzi; Tiziana Funaioli; Fabio Marchetti; Guido Pampaloni; Stefano Zacchini, Dalton Transactions, 2018

The full potential of a high valent metal chloride as both a chlorinating and an oxidative agent was explored by allowing WCl6 to react with N-(2,6-diisopropylphenyl) α-diimines, in CH2Cl2 at room temperature. These α-diimines underwent unprecedented conversion to quinoxalinium cations via ...

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Allowing the direct interaction of N-aryl [small alpha]-diimines with a high valent metal chloride: one-pot WCl6-promoted formation of quinoxalinium salts

19.01.2018 | Niccolò Bartalucci; Marco Bortoluzzi; Tiziana Funaioli; Fabio Marchetti; Guido Pampaloni; Stefano Zacchini, Dalton Transactions, 2018

The full potential of a high valent metal chloride as both a chlorinating and an oxidative agent was explored by allowing WCl6 to react with N-(2,6-diisopropylphenyl) α-diimines, in CH2Cl2 at room temperature. These α-diimines underwent unprecedented conversion to quinoxalinium cations via ...

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Evolution of heterogeneity accompanying sol–gel transitions in a supramolecular hydrogel

19.01.2018 | Yuji Matsumoto; Atsuomi Shundo; Masashi Ohno; Nobutomo Tsuruzoe; Masahiro Goto; Keiji Tanaka, Soft Matter, 2018

When a peptide amphiphile is dispersed in water, it self-assembles into a fibrous network, leading to a supramolecular hydrogel. When the gel is physically disrupted by shaking, it transforms into a sol state. After aging at room temperature for a while, it spontaneously returns to the gel state, ...

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Evolution of heterogeneity accompanying sol–gel transitions in a supramolecular hydrogel

19.01.2018 | Yuji Matsumoto; Atsuomi Shundo; Masashi Ohno; Nobutomo Tsuruzoe; Masahiro Goto; Keiji Tanaka, Soft Matter, 2018

When a peptide amphiphile is dispersed in water, it self-assembles into a fibrous network, leading to a supramolecular hydrogel. When the gel is physically disrupted by shaking, it transforms into a sol state. After aging at room temperature for a while, it spontaneously returns to the gel state, ...

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Enhancing thermoelectrochemical properties by tethering ferrocene to the anion or cation of ionic liquids: altered thermodynamics and solubility

19.01.2018 | Leigh Aldous; Jeffrey J. Black; Maximo C. Elias; Bruno Gélinas; Dominic Rochefort, Physical Chemistry Chemical Physics, 2018

Entropic changes inherent within a redox process typically result in significant temperature sensitivity. This can be utilised positively or can be a detrimental process. This study has investigated the thermoelectrochemical properties (temperature-dependant electrochemistry) of the ...

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Enhancing thermoelectrochemical properties by tethering ferrocene to the anion or cation of ionic liquids: altered thermodynamics and solubility

19.01.2018 | Leigh Aldous; Jeffrey J. Black; Maximo C. Elias; Bruno Gélinas; Dominic Rochefort, Physical Chemistry Chemical Physics, 2018

Entropic changes inherent within a redox process typically result in significant temperature sensitivity. This can be utilised positively or can be a detrimental process. This study has investigated the thermoelectrochemical properties (temperature-dependant electrochemistry) of the ...

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Facile insertion of a cyclic alkyl(amino) carbene carbon into the B–B bond of diboron(4) reagents

18.01.2018 | Antonius F. Eichhorn; Laura Kuehn; Todd B. Marder; Udo Radius, Chemical Communication, 2018

We report herein the room temperature insertion of the carbene carbon atom of the cyclic (alkyl)(amino) carbene cAACMe into the B–B single bonds of the diboron(4) compounds B2pin2, B2cat2, B2neop2, and B2eg2 (pin = pinacolato, cat = catecholato, neop = neopentylglycolato, eg = ethyleneglycolato).

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