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334 Newest Publications in chemical communication

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Renaissance for low shrinking resins: all-in-one solution by bi-functional vinylcyclopropane-amides

01-Jul-2015 | Paul Pineda Contreras; Christian Kuttner; Andreas Fery; Ullrich Stahlschmidt; Valérie Jérôme; Ruth Freitag; Seema Ag ..., Chemical Communication, 2015

A low volume shrinking vinylcyclopropane (VCP) monomer, showing both a high reactivity and a low viscosity, was obtained by applying a sterically hindered and isomeric spacer element, incorporating intermolecular amide hydrogen bonds. The resulting properties locate this VCP system in a ...

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A novel strategy for reversible hydrogen storage in Ca(BH4)2

01-Jul-2015 | Yigang Yan; Arndt Remhof; Daniel Rentsch; Andreas Züttel; Santanab Giri; Puru Jena, Chemical Communication, 2015

We report that decomposition pathway of Ca(BH4)2 can be efficiently controlled by reaction temperature. That is, it decomposes into CaB6 at a lower temperature range of 320 to 350 °C, but into amorphous boron at 400 to 450 °C. We identified the formation of CaB2H6 as the crucial intermediate step ...

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A Highly Reducing Metal-Free Photoredox Catalyst: Design and Application in Radical Dehalogenations

26-Jun-2015 | Javier Read de Alaniz; Emre H Discekici; Nicolas Treat; Saemi Oh Poelma; Kaila M Mattson; Zachary M Hudson; Yingdong ..., Chemical Communication, 2015

Here we report the use of 10-phenylphenothiazine (PTH) as an inexpensive, highly reducing metal-free photocatalyst for the reduction of carbon-halogen bonds via the trapping of carbon-centered radical intermediates with a mild hydrogen atom donor. Dehalogenations were carried out on various ...

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Mimicking the active site of aldehyde dehydrogenases: stabilization of carbonyl hydrates through hydrogen bonds

24-Jun-2015 | A. J. K. Roth; M. Tretbar; C. B. W. Stark, Chemical Communication, 2015

Aldehyde hydrates are important but highly unstable, transient intermediates in biological and synthetic oxidations to carboxylic acids. We here report N-oxides as the first class of chemical reagents capable of stabilizing such water adducts. This stabilizing effect (studied in solution and in ...

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Amine Grafted Silica Supported CrAuPd Alloy Nanoparticles: A Superb Heterogeneous Catalyst for the Room Temperature Dehydrogenation of Formic Acid

10-Jun-2015 | Mehmet Yurderi; Ahmet Bulut; Nurdan Caner; Metin Celebi; Murat Kaya; Mehmet Zahmakiran, Chemical Communication, 2015

Formic acid (HCOOH) has a great potential as a safe and convenient source of hydrogen for renewable energy storage, but the efficient CO-free hydrogen production from the decomposition of formic acid in the absence of chemical additives at low temperatures (< 363 K) constitutes a major challenge. ...

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Conformational cooperativity between helical domains of differing geometry in oligoamide-oligourea foldamer chimeras

10-Jun-2015 | Julien Maury; Bryden Le Bailly; James Raftery; Jonathan Clayden, Chemical Communication, 2015

Linking together an oligourea and an oligoamide foldamer gives rise to a conformationally well-defined structure, despite the different hydrogen-bonding patterns in the two domains, provided the oligomers are ligated amide C terminus to urea N terminus. A powerful screw-sense preference induced ...

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Regular assembly of cage siloxanes by hydrogen bonding of dimethylsilanol groups

10-Jun-2015 | Naoto Sato; Yoshiyuki Kuroda; Takuya Abe; Hiroaki Wada; Atsushi Shimojima; Kazuyuki Kuroda, Chemical Communication, 2015

A new class of ordered silica-based materials has been prepared by hydrogen bond-directed assembly of cage siloxanes modified with dimethylsilanol groups, providing a soft-chemical approach to crystalline silica materials with molecularly designed architectures.

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Shell-engineering of hollow g-C3N4 nanospheres via copolymerization for photocatalytic hydrogen evolution

03-Jun-2015 | Dandan Zheng; Chenyang Pang; Yuxing Liu; Xinchen Wang, Chemical Communication, 2015

Incorporation of aromatic motifs into the nanosized shells of hollow carbon nitride nanospheres has been reported to develop functional photosynthetic structures for solar energy application. This modification results in an extended π-conjugation system, red-shift of the optical absorption, and ...

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A Li–Mg–N–H composite as H2 storage material: a case study with Mg(NH2)2–4LiH–LiNH2

28-May-2015 | Biswajit Paik; Hai-Wen Li; Jianhui Wang; Etsuo Akiba, Chemical Communication, 2015

A reversible hydrogen storage capacity of [[similar]] 7 wt% at [[similar]] 150 °C without releasing ammonia can be achieved using a mechanically activated three-component composite of Mg(NH2)2–4LiH–LiNH2.

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pH switchable anion transport by an oxothiosquaramide

27-May-2015 | Robert B. P. Elmes; Nathalie Busschaert; Dawid D. Czech; Philip A. Gale; Katrina A. Jolliffe, Chemical Communication, 2015

An oxothiosquaramide was shown to bind to chloride through hydrogen bonding interactions in DMSO and found to exhibit pH switchable choride transport across phospholipid bilayers via an antiport transport mechanism.

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