10.04.2013 | Małgorzata Wierzbowska; Adam Dominiak; Kamil Tokar, Physical Chemistry Chemical Physics, 2013

We investigate the microscopic processes leading to graphene growth by the chemical vapor deposition of propane in the argon atmosphere at the SiC surface. Experimentally, it is known that the presence of argon fastens the dehydrogenation processes at the surface, in high temperature of about ...

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10.04.2013 | Maurizio Remelli; Massimiliano Peana; Serenella Medici; Lucia Gemma Delogu; Maria Antonietta Zoroddu, Dalton Transactions, 2013

Protected Ac-PDEKHEL-NH2 (PK9-H) and Ac-FCGDGANDCG-NH2 (PK9-C) peptide fragments corresponding to sequences from residues 1165 to 1171 and 1184 to 1193, respectively, in the Park9 encoded protein from Parkinson's disease gene were tested for their protonation and complex formation ...

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10.04.2013 | Jens Langanke; Lasse Greiner; Walter Leitner, Green Chemistry, 2013

Organic halides and polyoxometalates (POMs) were studied as catalyst systems for the insertion of carbon dioxide into epoxides originating from plant oils as biogenic feedstock. In the formation of methyl oleate carbonate, synergistic rate acceleration and increased cis-selectivity were ...

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10.04.2013 | Kamalakar Nandre; Sheshanath V. Bhosale; Akhil Gupta; Sidhanath Bhssale, Chemical Communication, 2013

A naphthalene diimide motif bearing phosphonic acid functionalities has been found to be self-assembled with L- and D-arginine through chirality induced molecular recognitions and leads to the formation of micrometre long nanobelts and spherical aggregates at pH 9 in water, respectively.

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10.04.2013 | Ronald Imbihl; Sebastian Guenther; Hong Liu; Andrea Locatelli; Tevfik Onur Menteş, Physical Chemistry Chemical Physics, 2013

The NO+H2 reaction on a potassium promoted Rh(110) surface is shown to sustain the formation of spatio-temporal periodic patterns leading to mass transport phenomena. The excitation of pulses and the mass transport mechanism are studied in the 10-7 and 10-6 mbar pressure range, with the ...

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10.04.2013 | Fei Zeng; Yun Shen; Chuan-Feng Chen, Soft Matter, 2013

Triptycene-derived macrotricyclic polyether was proved to be an efficient “molecular glue” for cross-linking the copolymer containing dibenzylammonium salts to form supramolecular polymer networks via host–guest complexation, which was evidenced by 1H NMR spectroscopy, solution viscometry, ...

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10.04.2013 | Hailing Yu; Jiecai Han; Jiaqi Zhu; Wenxin Cao, CrystEngComm, 2013

High quality 3C-SiC nanowires are synthesized by thermal treatment from Ni/a-C/Si sandwich films. The nanowires are obtained at 900℃, under low partial pressure of oxygen, consist of 20-50 mm diameter cores coated by an amorphous phase. The formation of 3C-SiC involves solid-liquid-solid mode ...

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10.04.2013 | Arijit Mukherjee; Srinu Tothadi; Shaunak Chakraborty; Somnath Ganguly; Gautam R Desiraju, CrystEngComm, 2013

IR spectroscopy has been widely employed to distinguish between different crystal forms such as polymorphs, clathrates, hydrates and co-crystals. IR has been used to monitor co-crystal formation and single synthon detection. In this work, we have developed a strategy to identify multiple ...

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10.04.2013 | Li Wang; Xinghao Zhang; Kezheng Chen, CrystEngComm, 2013

Three dimensionally (3D) hierarchically porous ZnO architectures constructed of sheet-like structures were prepared through a calcination of a bilamellar basic zinc citrate intermediate. The molar ratio of the precursors and the pH value of the reaction solution play a crucial role in the ...

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10.04.2013 | Patrick Pale; Sophie Borghese; Pauline Drouhin; Valerie Benneteau; Benoit Louis, Green Chemistry, 2013

Silver-fausajite type zeolite was able to catalyse, without solvent and at low silver loading, the formation of (spiro)ketals from alkyn(edi)ols. Such Ag-zeolite catalyst could be recycled without any activity loss. This study constitutes the first (spiro)ketalization mediated by silver ...

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