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Articles from Wiley

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The latest chemistry from ChemPubSoc Europe and Wiley-VCH
Updated: 18 weeks 3 days ago

Design, Synthesis, Pharmacological Evaluation and Docking Studies of GluN2B-Selective NMDA Receptor Antagonists with a Benzo[7]annulen-7-amine Scaffold

27 July, 2017 - 00:00

Design, Synthesis, Pharmacological Evaluation and Docking Studies of GluN2B‐Selective NMDA Receptor Antagonists with a Benzo[7]annulen‐7‐amine Scaffold

A new subpocket: 6,7,8,9-Tetrahydro-5H-benzo[7]annulen-7-amines with a nitro group, chlorine atom, or benzyloxy moiety at the 2-position show very high affinity toward GluN2B-subunit-containing NMDA receptors, but no antagonistic effects. The large 2-benzyloxy moiety occupies a previously unrecognized subpocket at the interface between the GluN1b and GluN2B subunits. The corresponding phenols reveal 10-fold lower GluN2B affinity, but promising inhibition of glutamate-/glycine-evoked effects in two-electrode voltage clamp experiments and cytoprotection assays.

[Full Paper]
Sandeep Gawaskar, Louisa Temme, Julian A. Schreiber, Dirk Schepmann, Alessandro Bonifazi, Dina Robaa, Wolfgang Sippl, Nathalie Strutz-Seebohm, Guiscard Seebohm, Bernhard Wünsch
ChemMedChem, July 27, 2017, https://doi.org/10.1002/cmdc.201700311 Read article

Electroreduction of Oxygen on PdPt Alloy Nanocubes in Alkaline and Acidic Media

27 July, 2017 - 00:00

Electroreduction of Oxygen on PdPt Alloy Nanocubes in Alkaline and Acidic Media

In the media: PdPt alloy nanocubes of various composition are synthesized and used as electrocatalysts for oxygen reduction reaction (ORR) in 0.1 M KOH and 0.1 M HClO4 solutions. The PdPt nanocubes are 8–10 nm in size. Different ORR activity trends for cubic PdPt alloy nanoparticles are reported for acidic and alkaline media.

[Article]
Kristel Jukk, Nadezda Kongi, Kaido Tammeveski, Jose Solla-Gullón, Juan M. Feliu
ChemElectroChem, July 27, 2017, https://doi.org/10.1002/celc.201700588 Read article

Probing the Influence of SSZ-13 Zeolite Pore Hierarchy in Methanol-to-Olefins Catalysis by Using Nanometer Accuracy by Stochastic Chemical Reactions Fluorescence Microscopy and Positron Emission Profiling

27 July, 2017 - 00:00

Probing the Influence of SSZ‐13 Zeolite Pore Hierarchy in Methanol‐to‐Olefins Catalysis by Using Nanometer Accuracy by Stochastic Chemical Reactions Fluorescence Microscopy and Positron Emission Profiling

Further down the hierarchy: Nanometer Accuracy by Stochastic Chemical reActions (NASCA) fluorescence microscopy and Positron Emission Tomography (PET) analysis reveal important catalytic aspects of hierarchically structured zeolites.

[Full Paper]
Xiaochun Zhu, Nikolay Kosinov, Alexey V. Kubarev, Alexey Bolshakov, Brahim Mezari, Ivan Valastyan, Jan P. Hofmann, Maarten B. J. Roeffaers, Eva Sarkadi-Pribóczki, Emiel J. M. Hensen
ChemCatChem, July 27, 2017, https://doi.org/10.1002/cctc.201700567 Read article

Oxidative C−C Cleavage of Ketols over Vanadium–Carbon Catalysts

27 July, 2017 - 00:00

Oxidative C−C Cleavage of Ketols over Vanadium–Carbon Catalysts

Bound catalyst: Vanadium(V) species adsorbed on activated carbon have a higher activity for ketol oxidation to carboxylic acids than homogeneous vanadium species.

[Full Paper]
Yoshinao Nakagawa, Dai Sekine, Naoyuki Obara, Masazumi Tamura, Keiichi Tomishige
ChemCatChem, July 27, 2017, https://doi.org/10.1002/cctc.201700566 Read article

Synthesis and Reactivity of 2-Arylquinazoline Halidoruthenacycles in Arylation Reactions

27 July, 2017 - 00:00

Synthesis and Reactivity of 2‐Arylquinazoline Halidoruthenacycles in Arylation Reactions

The halogen plays a role: Halogen ligands in quinazoline halidoruthenacycles have an impact on the equilibrium of halogen–acetate ligand exchange, which influences the reactivity towards the arylation process. Mechanistic studies reveal that quinazoline halidoruthenacycles undergo an arylation reaction in the presence of KOAc through a SET-type Ar−X cleavage.

[Full Paper]
Petra Kuzman, Franc Požgan, Anton Meden, Jurij Svete, Bogdan Štefane
ChemCatChem, July 27, 2017, https://doi.org/10.1002/cctc.201700494 Read article

Controllable Synthesis of Cu<sub><i>x</i></sub>Fe<sub>3−<i>x</i></sub>O<sub>4</sub>@Cu Core–Shell Hollow Spherical Chains for Broadband, Lightweight Microwave Absorption

27 July, 2017 - 00:00

Controllable Synthesis of CuxFe3−xO4@Cu Core–Shell Hollow Spherical Chains for Broadband, Lightweight Microwave Absorption

Lighting up microwave absorption: Structure, morphology, composition, textural characteristics, and properties of CuxFe3−xO4@Cu core–shell hollow spherical chains can be adjusted by changing the copper ion concentration. A 44 wt % mass fraction provides optimal microwave-absorbing properties.

[Full Paper]
Tong Wu, Yanting Zhao, Yana Li, Wenhua Wu, Guoxiu Tong
ChemCatChem, July 27, 2017, https://doi.org/10.1002/cctc.201700437 Read article

Effect of Fluoride-Modification on the Phillips Cr/SiO<sub>2</sub> Catalyst for Ethylene Polymerization

27 July, 2017 - 00:00

Effect of Fluoride‐Modification on the Phillips Cr/SiO2 Catalyst for Ethylene Polymerization

The fluorine effect: Fluorinated Phillips catalysts (Cr/F-SiO2) exhibit an enhanced reactivity towards ethylene polymerization and copolymerization. DFT calculations show that the difference of the Gibbs free energy barriers between chain transfer and chain propagation increased after the introduction of the fluoride onto the silica surface, which is in accordance with the increased molecular weight of the polyethylene formed using the Cr/F-SiO2 catalyst.

[Full Paper]
Qiaoqiao Sun, Ruihua Cheng, Zhen Liu, Xuelian He, Ning Zhao, Boping Liu
ChemCatChem, July 27, 2017, https://doi.org/10.1002/cctc.201700375 Read article

Unusual Lipid A from a Cold-Adapted Bacterium: Detailed Structural Characterization

27 July, 2017 - 00:00

 Detailed Structural Characterization

Out cold: Lipid A from C. psychrerythraea 34H is characterized by chemical analysis, high-resolution mass spectrometry, and NMR spectroscopy. Lipid A has intriguing structural features that could be related to the cold-adaptation mechanisms of this microorganism. The glycolipid does not show an agonistic or antagonistic effect upon testing in human macrophages.

[Full Paper]
Angela Casillo, Marcello Ziaco, Buko Lindner, Ermenegilda Parrilli, Dominik Schwudke, Aurora Holgado, Lynn Verstrepen, Filomena Sannino, Rudi Beyaert, Rosa Lanzetta, Maria Luisa Tutino, Maria Michela Corsaro
ChemBioChem, July 27, 2017, https://doi.org/10.1002/cbic.201700287 Read article

Synthesis, Structure, and Reactivity of a Stable Phosphonium–Sulfinyl Yldiide

26 July, 2017 - 00:00

Synthesis, Structure, and Reactivity of a Stable Phosphonium–Sulfinyl Yldiide

A stable lithium phosphonium–sulfinyl yldiide is isolated and fully characterized. Between methandiides and bisylides, the metalated center allows Wittig-type reactions under soft conditions. Theoretical calculations indicate strong ylidic character, which is experimentally confirmed through addition reactions with alkyl halides and its use as a catalyst for the hydroacylation of benzaldehyde.

[Communication]
Azucena Garduno-Alva, Romaric Lenk, Yannick Escudié, Mariana Lozano González, Laura Bousquet, Nathalie Saffon-Merceron, Cecilio Alvarez Toledano, Xavier Bagan, Vicenç Branchadell, Eddy Maerten, Antoine Baceiredo
Eur. J. Inorg. Chem., July 26, 2017, https://doi.org/10.1002/ejic.201700648 Read article

Magnesium Reagents Featuring a 1,1′-Bis(<i>o</i>-carborane) Ligand Platform

26 July, 2017 - 00:00

Magnesium Reagents Featuring a 1,1′‐Bis(o‐carborane) Ligand Platform

A well-defined class of Mg-based 1,1′-bis(o-carborane) reagents was prepared and used for group-transfer chemistry toward Sn-based electrophiles. The boron-cluster-based ligand, which behaves as a strongly electron-withdrawing substituent, presents a frontier molecular orbital picture distinct from those of analogous biphenyl-based compounds.

[Communication]
Jonathan C. Axtell, Kent O. Kirlikovali, Rafal M. Dziedzic, Milan Gembicky, Arnold L. Rheingold, Alexander M. Spokoyny
Eur. J. Inorg. Chem., July 26, 2017, https://doi.org/10.1002/ejic.201700604 Read article

Closomers: Versatile Monodisperse Molecular Nanoparticles

26 July, 2017 - 00:00

 Versatile Monodisperse Molecular Nanoparticles

[Microreview]
Alexander V. Safronov, Satish S. Jalisatgi, M. Frederick Hawthorne
Eur. J. Inorg. Chem., July 26, 2017, https://doi.org/10.1002/ejic.201700594 Read article

Factors Influencing the Mechanical Properties of Formamidinium Lead Halides and Related Hybrid Perovskites

26 July, 2017 - 00:00

Factors Influencing the Mechanical Properties of Formamidinium Lead Halides and Related Hybrid Perovskites

Hard or soft? Nanoindentation on single crystals of FAPbX3 (X=Br or I) is used to study the mechanical properties of formamidinium lead halide perovskites. The effects of hydrogen bonding are evaluated by ab initio molecular dynamics and calculating radial distribution functions.

[Communication]
Shijing Sun, Furkan H. Isikgor, Zeyu Deng, Fengxia Wei, Gregor Kieslich, Paul D. Bristowe, Jianyong Ouyang, Anthony K. Cheetham
ChemSusChem, July 26, 2017, https://doi.org/10.1002/cssc.201700991 Read article

Minimalistic Liquid-Assisted Route to Highly Crystalline α-Zirconium Phosphate

26 July, 2017 - 00:00

Minimalistic Liquid‐Assisted Route to Highly Crystalline &#x3B1;‐Zirconium Phosphate

ZrP-a-dee-doo-dah: A minimalistic sustainable route has been developed for the synthesis of &#x3B1;-zirconium phosphate avoiding excess reagents and solvents to form a highly crystalline product within hours. The morphology can be changed from platelets to rod-shaped particles by fluoride addition and the particle size can be tuned by varying the synthesis temperature and time.

[Full Paper]
Yu Cheng, Xiaodong (Tony) Wang, Stephan Jaenicke, Gaik-Khuan Chuah
ChemSusChem, July 26, 2017, https://doi.org/10.1002/cssc.201700885 Read article

Greening the Processes of Metal–Organic Framework Synthesis and their Use in Sustainable Catalysis

26 July, 2017 - 00:00

Greening the Processes of Metal–Organic Framework Synthesis and their Use in Sustainable Catalysis

Go green: This Review concerns processes for greening the synthesis of metal–organic frameworks (MOFs), according to benign conditions and green precursors of the MOFs and their application in sustainable catalysis, focusing on typical atom-economic reactions, such as catalytic hydrogenation and oxidation, C−C bond formation, CO2 fixation and reduction, and biomass-related transformations.

[Review]
Junying Chen, Kui Shen, Yingwei Li
ChemSusChem, July 26, 2017, https://doi.org/10.1002/cssc.201700748 Read article

Homologous Catalysts Based on Fe-Doped CoP Nanoarrays for High-Performance Full Water Splitting under Benign Conditions

26 July, 2017 - 00:00

Homologous Catalysts Based on Fe‐Doped CoP Nanoarrays for High‐Performance Full Water Splitting under Benign Conditions

Splitting the difference: Iron-doped cobalt phosphide (Fe-CoP) and iron-doped cobalt phosphate borate nanoarray (Fe-Co-Pi-Bi) supported on carbon cloth behave as complementary water-splitting electrocatalysts at near-neutral pH. Their use in a two-electrode electrolyzer affords a catalytic current density of 10 mA cm−2 at a cell voltage of 1.95 V with strong electrochemical stability in 0.1 m K-Bi.

[Communication]
Min Ma, Guilei Zhu, Fengyu Xie, Fengli Qu, Zhiang Liu, Gu Du, Abdullah M. Asiri, Yadong Yao, Xuping Sun
ChemSusChem, July 26, 2017, https://doi.org/10.1002/cssc.201700693 Read article

Photo-Chromium: Sensitizer for Visible-Light-Induced Oxidative C−H Bond Functionalization—Electron or Energy Transfer?

26 July, 2017 - 00:00

 Sensitizer for Visible‐Light‐Induced Oxidative C−H Bond Functionalization—Electron or Energy Transfer?

“A chromium(III) polypyridyl complex acts as a sensitizer for triplet oxygen, generating singlet oxygen and enabling a selective C−H bond activation of tertiary amines…” This and more about the story behind the front cover can be found in the Communication at 10.1002/cptc.201700077.

[Cover Profile]
Sven Otto, Alexander M. Nauth, Eugenyi Ermilov, Norman Scholz, Aleksej Friedrich, Ute Resch-Genger, Stefan Lochbrunner, Till Opatz, Katja Heinze
ChemPhotoChem, July 26, 2017, https://doi.org/10.1002/cptc.201700117 Read article

Protonation-State-Driven Photophysics in Phenothiazinium Dyes: Intersystem Crossing and Singlet-Oxygen Production

26 July, 2017 - 00:00

 Intersystem Crossing and Singlet‐Oxygen Production

Blame it on the proton! The interplay between the ground and excited states of diprotonated (TH22+) and neutral imine (T) forms of thionine (TH+) is presented. The (de)protonation of TH+ is shown to effect ISC processes and quench singlet-oxygen (1O2) production.

[Article]
Angela Rodriguez-Serrano, Martha C. Daza, Markus Doerr, Jörg Tatchen, Christel M. Marian
ChemPhotoChem, July 26, 2017, https://doi.org/10.1002/cptc.201700069 Read article

Ferromagnetism and Half-Metallicity in Atomically Thin Holey Nitrogenated Graphene Based Systems

26 July, 2017 - 00:00

Ferromagnetism and Half‐Metallicity in Atomically Thin Holey Nitrogenated Graphene Based Systems

Holey doped graphene: By using density functional theoretical (DFT) calculations, C-doped holey nitrogenated graphene based systems were studied for possible spintronic devices. Ferromagnetism is observed in all C-doped systems and strong half-metallicity is observed after achieving a particular C-doping concentration (16.67 %) in C2N. The presence of half-metallicity can be explained by the unsaturation on the doped C atom.

[Article]
Indrani Choudhuri, Biswarup Pathak
ChemPhysChem, July 26, 2017, https://doi.org/10.1002/cphc.201700633 Read article

TiO<sub>2</sub> Anatase Solutions for Electron Transporting Layers in Organic Photovoltaic Cells

26 July, 2017 - 00:00

TiO2 Anatase Solutions for Electron Transporting Layers in Organic Photovoltaic Cells

Solutions for solar cells: Highly stable colloidal solutions of nanosized crystallized anatase TiO2 are produced by using a polyol reflux method. The initial water amount in the solvent mixture is selected to monitor the particle size as well as other physicochemical properties of the obtained solutions. These solutions were demonstrated to produce suitable electron transport layers in inverted solar cells.

[Article]
Moustafa El Kass, Luc Brohan, Nicolas Gautier, Solène Béchu, Céline David, Noëlla Lemaitre, Solenn Berson, Mireille Richard-Plouet
ChemPhysChem, July 26, 2017, https://doi.org/10.1002/cphc.201700306 Read article

One-Step Cathodic and Anodic Synthesis of Hydrophilic Carbon Nanomaterials

26 July, 2017 - 00:00

One‐Step Cathodic and Anodic Synthesis of Hydrophilic Carbon Nanomaterials

Two in one: Two distinct sets of amorphous carbonaceous material with aromatic sp2 carbon clusters are generated simultaneously and separately in a two-compartment electrochemical cell in aqueous medium. It is demonstrated that both carbon-based materials are negatively charged and that incorporation of nitrogen from N2 occurs. These materials display unique optical properties, exhibiting deep ultraviolet emission, in addition to blue luminescence.

[Article]
Andreia D. Veloso, Ana M. Botelho do Rego, Ana M. Ferraria, Luís F. V. Ferreira, Diana P. Ferreira, Pedro B. Tavares, Romeu Videira, Ana S. Viana, M. Cristina Oliveira
ChemElectroChem, July 26, 2017, https://doi.org/10.1002/celc.201700386 Read article

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