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Articles from Wiley

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The latest chemistry from ChemPubSoc Europe and Wiley-VCH
Aggiornato: 15 settimane 4 giorni fa

Synthesis and Antibacterial Activity of Polymerizable Acryloyloxyalkyltriethyl Ammonium Salts

31 luglio, 2017 - 00:00

Synthesis and Antibacterial Activity of Polymerizable Acryloyloxyalkyltriethyl Ammonium Salts

The cover picture shows the structure of an acryloxyalkyltriethyl ammonium (AATEA) cation, characterized by a polymerizable end, a long-chain alkyl linker, and a quaternary ammonium moiety. The corresponding bromide salts (AATEABs) have been synthesized by a two-step procedure carried out entirely under air without any need for chromatographic purifications. Some AATEABs have shown significant antimicrobial activity and may serve as useful precursors for the preparation of polymeric films with antimicrobial properties. Details are given in the Full Paper by Bartolo Gabriele and co-workers (DOI: 10.1002/cplu.201700194).

[Cover Picture]
Raffaella Mancuso, Roberta Amuso, Biagio Armentano, Giuseppe Grasso, Vittoria Rago, Anna Rita Cappello, Francesco Galiano, Alberto Figoli, Giorgio De Luca, Jan Hoinkis, Bartolo Gabriele
ChemPlusChem, July 31, 2017, https://doi.org/10.1002/cplu.201700248 Read article

Water-Mediated Structural Transformations of Cu<sup>II</sup> 5-Halonicotinates Coordination Networks with Distinct Mechanisms

31 luglio, 2017 - 00:00

Water‐Mediated Structural Transformations of CuII 5‐Halonicotinates Coordination Networks with Distinct Mechanisms

The results will offer a convenient strategy to illuminate the mechanisms for solvent-mediated crystal transformations.” Read more about the story behind the cover in the Cover Profile and about the research itself on page ▪▪ ff. (DOI: 10.1002/chem.201702405).

[Cover Profile]
Cheng-Peng Li, Hang Zhou, Yue Ju, Miao Du
Chem. Eur. J., July 31, 2017, https://doi.org/10.1002/chem.201703319 Read article

Prussian Blue-Derived Synthesis of Hollow Porous Iron Pyrite Nanoparticles as Platinum-Free Counter Electrodes for Highly Efficient Dye-Sensitized Solar Cells

31 luglio, 2017 - 00:00

Prussian Blue‐Derived Synthesis of Hollow Porous Iron Pyrite Nanoparticles as Platinum‐Free Counter Electrodes for Highly Efficient Dye‐Sensitized Solar Cells

Caught the sun: Hollow porous iron pyrite nanoparticles were synthesized by a direct sulfurization of iron oxide derived from Prussian blue. The high efficiency of the hollow porous iron pyrite nanoparticles, as effective dye-sensitized solar cell counter electrodes, was demonstrated with an efficiency of 7.31 %.

[Communication]
Jeffrey E. Chen, Miao-Syuan Fan, Yen-Lin Chen, Yu-Heng Deng, Jung Ho Kim, Hatem R. Alamri, Zeid A. Alothman, Yusuke Yamauchi, Kuo-Chuan Ho, Kevin C.-W. Wu
Chem. Eur. J., July 31, 2017, https://doi.org/10.1002/chem.201702687 Read article

Modulation of Mitochondriotropic Properties of Cyanine Dyes by in Organello Copper-Free Click Reaction

31 luglio, 2017 - 00:00

Modulation of Mitochondriotropic Properties of Cyanine Dyes by in Organello Copper‐Free Click Reaction

Mitochondrial meeting point: Cyanine (Cy) dyes show a general propensity to localize in polarized mitochondria. This mitochondriotropism is used to perform a copper-free click reaction in the mitochondria of living cells. A Cy3–Cy5 conjugate shows enhanced retention in mitochondria, compared with the starting compounds. This enhancement of a favorable property can be achieved by synthesis in organello, but not outside mitochondria.

[Communication]
Inka Negwer, Markus Hirsch, Stefka Kaloyanova, Tom Brown, Kalina Peneva, Hans-Jürgen Butt, Kaloian Koynov, Mark Helm
ChemBioChem, July 31, 2017, https://doi.org/10.1002/cbic.201700286 Read article

Small Molecules Inspired by the Natural Product Withanolides as Potent Inhibitors of Wnt Signaling

31 luglio, 2017 - 00:00

Small Molecules Inspired by the Natural Product Withanolides as Potent Inhibitors of Wnt Signaling

Disruption of the Wnt response: Synthesis inspired by the natural product withanolide has yielded a potent inhibitor of the Wnt/&#x3B2;-catenin signaling pathway that acts by elevating Axin protein levels in a tankyrase-independent manner.

[Communication]
Michael Sheremet, Shobhna Kapoor, Peter Schröder, Kamal Kumar, Slava Ziegler, Herbert Waldmann
ChemBioChem, July 31, 2017, https://doi.org/10.1002/cbic.201700260 Read article

Chemoenzymatic Synthesis in Flow Reactors: A Rapid and Convenient Preparation of Captopril

28 luglio, 2017 - 00:00

 A Rapid and Convenient Preparation of Captopril

Chemistry to lower blood pressure: An innovative and convenient process for the synthesis of captopril, an angiotensin-converting enzyme inhibitor widely used for the treatment of hypertension, is developed by exploiting a chemoenzymatic pathway in a flow reactor. This flow-based synthetic route includes a biocatalyzed heterogeneous regio- and stereoselective oxidation reaction, followed, after isolation of the carboxylic acid, by three sequential chemical steps.

[Full Paper]
Valerio De Vitis, Federica Dall'Oglio, Andrea Pinto, Carlo De Micheli, Francesco Molinari, Paola Conti, Diego Romano, Lucia Tamborini
ChemistryOpen, July 28, 2017, https://doi.org/10.1002/open.201700082 Read article

Corrigendum: Towards an Understanding of Li<sub>2</sub>O<sub>2</sub> Evolution in Li–O<sub>2</sub> Batteries: An In Operando Synchrotron X-ray Diffraction Study

28 luglio, 2017 - 00:00

[Corrigendum]
Chenjuan Liu, William R. Brant, Reza Younesi, Yanyan Dong, Kristina Edström, Torbjörn Gustafsson, Jiefang Zhu
ChemSusChem, July 28, 2017, https://doi.org/10.1002/cssc.201701241 Read article

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

28 luglio, 2017 - 00:00

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

The Front Cover picture shows the molecular structure of the sensitizer with an earth-abundant CrIII ion and a flask containing the sensitizer and the amine substrate, all illuminated by the sun under air. More information can be found in the Communication by S. Lochbrunner, T. Opatz, K. Heinze and co-workers (DOI: 10.1002/cptc.201700077).

[Cover Picture]
Sven Otto, Alexander M. Nauth, Eugenyi Ermilov, Norman Scholz, Aleksej Friedrich, Ute Resch-Genger, Stefan Lochbrunner, Till Opatz, Katja Heinze
ChemPhotoChem, July 28, 2017, https://doi.org/10.1002/cptc.201700118 Read article

Visible-Light Photoreduction of CO<sub>2</sub> to CH<sub>4</sub> over ZnTe-Modified TiO<sub>2</sub> Coral-Like Nanostructures

28 luglio, 2017 - 00:00

Visible‐Light Photoreduction of CO2 to CH4 over ZnTe‐Modified TiO2 Coral‐Like Nanostructures

Carbon dioxide fixation: ZnTe-modified TiO2 photocatalysts with a ZnTe content as low as 1.96 % exhibit good visible-light activity for the photoreduction of CO2 to CH4, which is attributed to its high BET specific surface area and the formation of a p–n junction at the ZnTe/TiO2 interface that can facilitate the charge transfer.

[Article]
Muhammad Fahad Ehsan, Rabia Khan, Tao He
ChemPhysChem, July 28, 2017, https://doi.org/10.1002/cphc.201700404 Read article

Edge-Abundant Porous Fe<sub>3</sub>O<sub>4</sub> Nanoparticles Docking in Nitrogen-Rich Graphene Aerogel as Efficient and Durable Electrocatalyst for Oxygen Reduction

28 luglio, 2017 - 00:00

Edge‐Abundant Porous Fe3O4 Nanoparticles Docking in Nitrogen‐Rich Graphene Aerogel as Efficient and Durable Electrocatalyst for Oxygen Reduction

Living on the edge: Porous Fe3O4 with abundant edges located on nitrogen-doped graphene aerogel (Fe3O4@NGA) is prepared through a metal-organic framework (MOF) route. The Fe3O4@NGA material exhibits excellent electrocatalytic activity and durability towards the oxygen reduction reaction.

[Communication]
Zibin Liang, Wei Xia, Chong Qu, Bin Qiu, Hassina Tabassum, Song Gao, Ruqiang Zou
ChemElectroChem, July 28, 2017, https://doi.org/10.1002/celc.201700627 Read article

S, N Dual-Doped Graphene Fibers: A High-Performance Electrode Material for Supercapacitors

28 luglio, 2017 - 00:00

 A High‐Performance Electrode Material for Supercapacitors

S&N: S and N dual doping is combined with a 3D fibrous structure in S, N dual-doped graphene fibers, prepared through a chemical vapor deposition process, thus leading to superior electrode performance in supercapacitors. This work exhibits an effective synthesis method of 3D fiber-like graphene with dual heteroatom doping, which could promote its widespread application in supercapacitors

[Article]
Yanfang Kan, Xinlong Ma, Guoqing Ning, Yongfeng Li, Yasong Zhou
ChemElectroChem, July 28, 2017, https://doi.org/10.1002/celc.201700406 Read article

Photoreduction Dependent p- and n-Type Semiconducting Field-Effect Transistor Properties in Undoped Reduced Graphene Oxide

27 luglio, 2017 - 00:00

Photoreduction Dependent p‐ and n‐Type Semiconducting Field‐Effect Transistor Properties in Undoped Reduced Graphene Oxide

Both p- and n-type semiconductivity have been generated in undoped reduced graphene oxide (rGO) through a facile photo-reduction procedure. Although achieving such duel behaviour in any undoped materials is exceedingly unusual, we report such an occurrence in the photo-reduced from of graphene oxide (PrGO) for the first time.

[Communication]
Hiroshi Takehira, Md. Saidul Islam, Mohammad Razaul Karim, Yuta Shudo, Ryo Ohtani, Leonard F. Lindoy, Takaaki Taniguchi, Minoru Osada, Shinya Hayami
ChemistrySelect, July 27, 2017, https://doi.org/10.1002/slct.201701509 Read article

Structural Characterization of (Diphenylhydrazido)vanadium(V) Compounds

27 luglio, 2017 - 00:00

Structural Characterization of (Diphenylhydrazido)vanadium(V) Compounds

(Diphenylhydrazido)vanadium(V) triisopropoxide was present as a &#x3BC;-isopropoxido-bridged dimeric structure with a distorted trigonal-bipyramidal geometry in a solid state, being in contrast to a monomeric structure of (diphenylhydrazido)vanadium(V) nitrilotriethoxide possessing a pseudo trigonal-bipyramidal geometry. Another interesting structural features of (diphenylhydrazido)vanadium(V) compounds are their self-assembling structures through CH–&#x3C0; interactions.

[Full Paper]
Takashi Sakuramoto, Toshikazu Hirao, Toshiyuki Moriuchi
ChemistrySelect, July 27, 2017, https://doi.org/10.1002/slct.201700833 Read article

The Thermodynamic Effects of Ligand Structure on the Molecular Recognition of Mononuclear Ruthenium Polypyridyl Complexes with B-DNA

27 luglio, 2017 - 00:00

The Thermodynamic Effects of Ligand Structure on the Molecular Recognition of Mononuclear Ruthenium Polypyridyl Complexes with B‐DNA

Read more about the story behind the cover in the Cover Profile and about the research itself on page -- ff (https://doi.org/10.1002/ejic.201700462).

[Cover Profile]
Clinton G. Mikek, Jesse I. DuPont, Venkata R. Machha, Jake C. White, Logan R. Martin, Nagham Alatrash, Frederick M. MacDonnell, Edwin A. Lewis
Eur. J. Inorg. Chem., July 27, 2017, https://doi.org/10.1002/ejic.201700778 Read article

Front Cover: The Thermodynamic Effects of Ligand Structure on the Molecular Recognition of Mononuclear Ruthenium Polypyridyl Complexes with B-DNA (Eur. J. Inorg. Chem. /2017)

27 luglio, 2017 - 00:00

 The Thermodynamic Effects of Ligand Structure on the Molecular Recognition of Mononuclear Ruthenium Polypyridyl Complexes with B‐DNA (Eur. J. Inorg. Chem. /2017)

The cover picture shows Ru(phen)2(tatpp)]2+ binding to DNA through an intercalative mechanism. In the hypoxic environment of a lung cancer tumor, the ruthenium(II) polypyridyl complex (RPC) reacts with oxygen to produce H2O2 as opposed to superoxide and oxidizes DNA, resulting in the cleavage of phosphodiester backbone bonds in both strands. This cleavage is shown at the center of the image. The RPCs used in this study have shown some potential as anticancer compounds, particularly for the treatment of lung cancer, so we have displayed a background of carcinoma cells from a tumor that is stained blue and surrounded by purple-stained normal lung tissue (background reproduced with permission from the Experimental Histopathology Core at the Fred Hutchinson Cancer Research Center; copyright 2014). Details are discussed in the article by F. M. MacDonnell, E. A. Lewis et al. on page -- ff (https://doi.org/10.1002/ejic.201700462). For more on the story behind the cover research, see the Cover Profile (https://doi.org/10.1002/ejic.201700778).

[Cover Picture]
Clinton G. Mikek, Jesse I. DuPont, Venkata R. Machha, Jake C. White, Logan R. Martin, Nagham Alatrash, Frederick M. MacDonnell, Edwin A. Lewis
Eur. J. Inorg. Chem., July 27, 2017, https://doi.org/10.1002/ejic.201700777 Read article

Supramolecular Anchoring of NCN-Pincer Palladium Complexes into a β-Barrel Protein Host: Molecular-Docking and Reactivity Insights

27 luglio, 2017 - 00:00

Supramolecular Anchoring of NCN‐Pincer Palladium Complexes into a &#x3B2;‐Barrel Protein Host: Molecular‐Docking and Reactivity Insights

Prochiral NCN-pincer palladium(II) complexes of hemilabile ligands and a long aliphatic chain were shown to insert into bovine &#x3B2;-lactoglobin, as assessed by CD spectroscopy and molecular-docking calculations. Adjunction of H-bond donor substituents gave more-stable supramolecular assemblies. These constructs catalyzed aldol condensations, affording, in some cases, the less-favorable cis product.

[Full Paper]
Lucrèce Pocquet, Nikolay Vologdin, Giuseppe Felice Mangiatordi, Ilaria Ciofini, Orazio Nicolotti, Serge Thorimbert, Michèle Salmain
Eur. J. Inorg. Chem., July 27, 2017, https://doi.org/10.1002/ejic.201700365 Read article

Catalytic Hydrodeoxygenation of High Carbon Furylmethanes to Renewable Jet-fuel Ranged Alkanes over a Rhenium-Modified Iridium Catalyst

27 luglio, 2017 - 00:00

Catalytic Hydrodeoxygenation of High Carbon Furylmethanes to Renewable Jet‐fuel Ranged Alkanes over a Rhenium‐Modified Iridium Catalyst

The difference is plane: Renewable jet-fuel-range alkanes are synthesized in 82–99 % yield by hydrodeoxygenation of lignocellulose-derived furylmethanes over Ir−ReOx/SiO2 catalysts under mild reaction conditions. The high catalyst activity arises from synergy between Ir and ReOx, whereby the acidic sites of partially reduced ReOx activate the C−O bonds of the saturated furans and alcoholic groups, while the Ir sites are responsible for hydrogenation.

[Full Paper]
Sibao Liu, Saikat Dutta, Weiqing Zheng, Nicholas S. Gould, Ziwei Cheng, Bingjun Xu, Basudeb Saha, Dionisios G. Vlachos
ChemSusChem, July 27, 2017, https://doi.org/10.1002/cssc.201700863 Read article

Low-Cost Carbazole-Based Hole-Transport Material for Highly Efficient Perovskite Solar Cells

27 luglio, 2017 - 00:00

Low‐Cost Carbazole‐Based Hole‐Transport Material for Highly Efficient Perovskite Solar Cells

Hole in one: Organic–inorganic lead halide perovskite solar cells (PSCs) have developed rapidly in recent years. However, the high cost and instability of commonly used hole-transport materials (HTMs) hinders commercialization. Herein, the small and low-cost molecule 1,3,6,8-tetra(N,N-p-dimethoxyphenylamino)-9-ethyl-carbazole is synthesized and used in a low-temperature-processed planar PSC that exhibits a high power-conversion efficiency.

[Full Paper]
Zhiliang Chen, Hui Li, Xiaolu Zheng, Qi Zhang, Zhanfeng Li, Yuying Hao, Guojia Fang
ChemSusChem, July 27, 2017, https://doi.org/10.1002/cssc.201700678 Read article

Carbon-Dot/Natural-Dye Sensitizer for TiO<sub>2</sub> Solar Cells Prepared by a One-Step Treatment of Celery Leaf Extract

27 luglio, 2017 - 00:00

Carbon‐Dot/Natural‐Dye Sensitizer for TiO2 Solar Cells Prepared by a One‐Step Treatment of Celery Leaf Extract

Helping solar cells go natural: Pheophytin- or pyropheophytin-capped carbon dots (CDs) are employed as sensitizers in nanocrystalline-TiO2-based solar cells. The natural-dye/CD hybrids were synthesized by means of a single-step hydrothermal treatment of celery leaf extracts.

[Article]
Zhangfeng Shen, Xiaochen Guo, Lihong Liu, Jaka Sunarso, Guiqiang Wang, Shaobin Wang, Shaomin Liu
ChemPhotoChem, July 27, 2017, https://doi.org/10.1002/cptc.201700075 Read article

Convection-Diffusion Layer in an “Open Space” for Local Surface Treatment and Microfabrication using a Four-Aperture Microchemical Pen

27 luglio, 2017 - 00:00

Convection‐Diffusion Layer in an “Open Space” for Local Surface Treatment and Microfabrication using a Four‐Aperture Microchemical Pen

Pen pals: A novel method is proposed to produce a stable convection-diffusion layer for use in microreactions and in microfabrication in an “open space” by using a four-aperture microchemical pen. The microchemical pen developed in this study exhibits excellent controllability and stability. The pen is used to produce a uniform pattern line and a pattern line with width gradients.

[Article]
Sifeng Mao, Yong Zhang, Weifei Zhang, Hulie Zeng, Hizuru Nakajima, Jin-Ming Lin, Katsumi Uchiyama
ChemPhysChem, July 27, 2017, https://doi.org/10.1002/cphc.201700577 Read article

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