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Articles from Wiley

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The latest chemistry from ChemPubSoc Europe and Wiley-VCH
Aggiornato: 7 settimane 5 giorni fa

Impact of the Diazonium Grafting Control on the Interfacial Reactivity: Monolayer versus Multilayer

23 gennaio, 2017 - 00:00

 Monolayer versus Multilayer

The Back Cover picture illustrates a simple strategy to prepare versatile monolayer platform for “on surface” chemistry on carbon. This grafting method allows the electrochemical properties and interfacial reactivity of functional surfaces to be enhanced. More information can be found in the Communication by T. Breton and co-workers (DOI: 10.1002/celc.201600710).

[Cover Picture]
Thibaud Menanteau, Sylvie Dabos-Seignon, Eric Levillain, Tony Breton
ChemElectroChem, January 23, 2017, DOI: 10.1002/celc.201700067. Read article

Significantly Improved Electrocatalytic Activity of Copper-Based Structures that Evolve from a Metal-Organic Framework Induced by Cathodization Treatment

23 gennaio, 2017 - 00:00

Significantly Improved Electrocatalytic Activity of Copper‐Based Structures that Evolve from a Metal‐Organic Framework Induced by Cathodization Treatment

The Inside Back Cover picture shows that the cathodization treatment on Cu–MOF results in the evolution of a structure with improved electrocatalytic activity for glucose oxidation. More information can be found in the Communication by H. Zhao, M. Lan and co-workers (DOI: 10.1002/celc.201600625).

[Cover Picture]
Libo Shi, Xiangheng Niu, Hongli Zhao, Minbo Lan
ChemElectroChem, January 23, 2017, DOI: 10.1002/celc.201700010. Read article

Roles of Alkaline Earth Ions in Garnet-Type Superionic Conductors

23 gennaio, 2017 - 00:00

Roles of Alkaline Earth Ions in Garnet‐Type Superionic Conductors

The Inside Cover picture shows distinctive site occupancy of alkaline-earth ions within garnet frameworks. The modified garnets show superior conduct properties. More details can be found in the Communication by S. F. Song et al. (DOI: 10.1002/celc.201600639).

[Cover Picture]
Shufeng Song, Masashi Kotobuki, Feng Zheng, Chaohe Xu, Yu Wang, Wei Dong Z. Li, Ning Hu, Li Lu
ChemElectroChem, January 23, 2017, DOI: 10.1002/celc.201700009. Read article

Theory and Simulations for the Electron-Transfer/Ion-Transfer Mode of Scanning Electrochemical Microscopy in the Presence or Absence of Homogenous Kinetics

23 gennaio, 2017 - 00:00

Theory and Simulations for the Electron‐Transfer/Ion‐Transfer Mode of Scanning Electrochemical Microscopy in the Presence or Absence of Homogenous Kinetics

The Front Cover picture illustrates the delivered (A) and captured (B) flux gradients inside the nanopipette as well as those generated inside the nanocleft delimited by the nanopipette tip and the electrode surface. It is a single-barrel nanopipette, so the two gradients are artificially separated for graphical purposes by their individual projection on each face of the crosscut volume. More information can be found in the Article by M. V. Mirkin, C. Amatore and co-workers (DOI: 10.1002/celc.201600583).

[Cover Picture]
Alexander Oleinick, Yun Yu, Irina Svir, Michael V. Mirkin, Christian Amatore
ChemElectroChem, January 23, 2017, DOI: 10.1002/celc.201700008. Read article

Theory and Simulations for the Electron-Transfer/Ion-Transfer Mode of Scanning Electrochemical Microscopy in the Presence or Absence of Homogenous Kinetics

23 gennaio, 2017 - 00:00

Theory and Simulations for the Electron‐Transfer/Ion‐Transfer Mode of Scanning Electrochemical Microscopy in the Presence or Absence of Homogenous Kinetics

“The theory behind the electron-transfer/ion-transfer mode of scanning electrochemical microscopy is investigated. It is shown that by using a nano-interface between two immiscible electrolyte solutions, it should be possible to detect extremely fast kinetics…” Find out more about the story behind the front cover research at 10.1002/celc.201600583.

[Cover Profile]
Alexander Oleinick, Yun Yu, Irina Svir, Michael V. Mirkin, Christian Amatore
ChemElectroChem, January 23, 2017, DOI: 10.1002/celc.201700007. Read article

Horseradish-Peroxidase-Catalyzed Tyrosine Click Reaction

23 gennaio, 2017 - 00:00

Horseradish‐Peroxidase‐Catalyzed Tyrosine Click Reaction

Specific labeling of tyrosine in proteins: Horseradish-peroxidase-catalyzed (HRP-catalyzed) tyrosine modification was achieved with the aid of N-methylluminol derivatives. Tyrosine residues in peptides and proteins were modified efficiently in the presence of H2O2 or β-nicotinamide adenine dinucleotide.

[Communication]
Shinichi Sato, Kosuke Nakamura, Hiroyuki Nakamura
ChemBioChem, January 23, 2017, DOI: 10.1002/cbic.201600649. Read article

Relationship between Side-Chain Polarity and the Self-Assembly Characteristics of Perylene Diimide Derivatives in Aqueous Solution

20 gennaio, 2017 - 00:00

Relationship between Side‐Chain Polarity and the Self‐Assembly Characteristics of Perylene Diimide Derivatives in Aqueous Solution

Side chains dictate: Three perylene-3,4,9,10-tetracarboxylic acid diimide (PDI)-based oligomers are studied to investigate how altering the side chains influences their self-assembly behavior in aqueous solution. The morphology and photophysical properties of the corresponding PDI aggregates are shown to be highly dependent on the polarity of the side chains.

[Full Paper]
Jurgen Schill, Lech-Gustav Milroy, Jody A. M. Lugger, Albertus P. H. J. Schenning, Luc Brunsveld
ChemistryOpen, January 20, 2017, DOI: 10.1002/open.201600133. Read article

Synthesis of Substituted Acridines through a Palladium-Catalyzed Condensation/Cyclization/Tautomerization Sequence

20 gennaio, 2017 - 00:00

Synthesis of Substituted Acridines through a Palladium‐Catalyzed Condensation/Cyclization/Tautomerization Sequence

[Communication]
Xiangui Chen, Yanjun Xie, Cheng Li, Fuhong Xiao, Guo-Jun Deng
Eur. J. Org. Chem., January 20, 2017, DOI: 10.1002/ejoc.201601553. Read article

Thermoresponsive Corannulene

20 gennaio, 2017 - 00:00

Thermoresponsive Corannulene

A polycyclic aromatic bowl is programmed to respond to a thermal trigger and assemble into larger luminescent fibrilar structures.

[Full Paper]
Surendra H. Mahadevegowda, Mihaiela C. Stuparu
Eur. J. Org. Chem., January 20, 2017, DOI: 10.1002/ejoc.201601405. Read article

Straightforward Syntheses That Avoid Scrambling of <i>meso</i>-Substituted [28]Hexaphyrins

20 gennaio, 2017 - 00:00

Straightforward Syntheses That Avoid Scrambling of meso‐Substituted [28]Hexaphyrins

[28]Hexaphyrins bearing up to four different kinds of meso substituents are synthesized in a water/ethanol mixture, and scrambling is avoided.

[Full Paper]
Rémi Plamont, Teodor Silviu Balaban, Gabriel Canard
Eur. J. Org. Chem., January 20, 2017, DOI: 10.1002/ejoc.201601342. Read article

A Direct, Versatile, and Chemoselective Synthesis of Vinylogous Bis- and Monourethanes/amides and β-Keto Esters by Aza-Knoevenagel-Type Reactions of Tertiary Amides with Enolates

20 gennaio, 2017 - 00:00

A Direct, Versatile, and Chemoselective Synthesis of Vinylogous Bis‐ and Monourethanes/amides and &#x3B2;‐Keto Esters by Aza‐Knoevenagel‐Type Reactions of Tertiary Amides with Enolates

The extension of the aldehyde-based Knoevenagel reaction to the amide-based aza-Knoevenagel-type reaction allows a one-pot and versatile synthesis of vinylogous bis- and monourethanes and amides. The method is applied to the one-step synthesis of several key intermediates of alkaloids and 4-quinolone antibiotics.

[Full Paper]
Pei-Qiang Huang, Wei Ou
Eur. J. Org. Chem., January 20, 2017, DOI: 10.1002/ejoc.201601326. Read article

Reaction Pathways through a [1,5]-Hydride Shift Triggered by Acids: Approach to Bridged-Ring Heterocycles and Polycycles

20 gennaio, 2017 - 00:00

 Approach to Bridged‐Ring Heterocycles and Polycycles

An acid-promoted [1,5]-hydride shift strategy that occurs through a quinone methide (QM) formation/isomerization reaction sequence has been presented. The resulting intermediary isoindoles were further employed in intermolecular Diels–Alder reactions to give structurally diverse bridged-ring heterocycles and polycyclic compounds. This method uses different acid catalysts to obtain different products.

[Full Paper]
Le Zhen, Liang Dai, Sheng-Qi Yu, Chao Lin, Hongbin Sun, Qing-Long Xu
Eur. J. Org. Chem., January 20, 2017, DOI: 10.1002/ejoc.201601319. Read article

Platinum Intercalators of DNA as Anticancer Agents

20 gennaio, 2017 - 00:00

Platinum Intercalators of DNA as Anticancer Agents

[Microreview]
Benjamin J. Pages, K. Benjamin Garbutcheon-Singh, Janice R. Aldrich-Wright
Eur. J. Inorg. Chem., January 20, 2017, DOI: 10.1002/ejic.201601204. Read article

Back Cover: Synthesis and Characterisation of Reduced Graphene Oxide/Bismuth Composite for Electrodes in Electrochemical Energy Storage Devices (ChemSusChem 2/2017)

20 gennaio, 2017 - 00:00

 Synthesis and Characterisation of Reduced Graphene Oxide/Bismuth Composite for Electrodes in Electrochemical Energy Storage Devices (ChemSusChem 2/2017)

The Back Cover picture shows the structure of a reduced graphene oxide (rGO)/Bi composite material synthesized through a simple and scalable procedure. The material shows both supercapacitor and battery behavior (supercapattery behavior) and achieves a specific capacity value close to its theoretical value while atmospheric oxidation of metallic bismuth is inhibited by the reduced graphene oxide. More details can be found in the Full Paper by Wang et al. on page 363 in Issue 2, 2017 (DOI: 10.1002/cssc.201601553).

[Cover Picture]
Jiabin Wang, Han Zhang, Michael R. C. Hunt, Alasdair Charles, Jie Tang, Oana Bretcanu, David Walker, Khalil T. Hassan, Yige Sun, Lidija &#x160;iller
ChemSusChem, January 20, 2017, DOI: 10.1002/cssc.201700005. Read article

Long Persistent Phosphorescence of Crystalline Phenylboronic Acid Derivatives: Photophysics and a Mechanistic Study

20 gennaio, 2017 - 00:00

 Photophysics and a Mechanistic Study

Let it glow! Phenylboronic acid derivatives (PBs) show extraordinarily long afterglows, which persist long after exposure to a light source, through the formation of triplet charge-transfer (CT) complexes. The effects of magnetic field and isotope substitution were consistent with a hyperfine-coupling-assisted triplet generation. Bulky ester head groups on PBs inhibited CT formation and thus the afterglow.

[Article]
Shinichi Kuno, Takashi Kanamori, Zhao Yijing, Hiroyuki Ohtani, Hideya Yuasa
ChemPhotoChem, January 20, 2017, DOI: 10.1002/cptc.201600031. Read article

Catalytic Activity of Gold(I) Complexes with Hemilabile P,N Ligands

20 gennaio, 2017 - 00:00

Catalytic Activity of Gold(I) Complexes with Hemilabile P,N Ligands

Midas touch: Complexes of the type [Au2{&#x3BC;(P,N)-L}2][X]2 (X=NTf2 or SbF6 in which Tf=trifluoromethanesulfonate; L=1′-(diphenylphosphanyl)-1-cyanoferrocene or 2-(diphenylphosphanyl)benzonitrile) have been found to be easy to handle and versatile precatalysts for various gold(I)-catalyzed reactions (see scheme).

[Full Paper]
Bastien Michelet, David Leb&#x153;uf, Christophe Bour, Karel &#x160;koch, Filip Horký, Petr &#x160;t&#x11B;pni&#x10D;ka, Vincent Gandon
ChemPlusChem, January 20, 2017, DOI: 10.1002/cplu.201600562. Read article

Photoinduced Charge Separation Catalyzed by Manganese Oxides onto a Y-Shaped Branching Acceptor Efficiently Preventing Charge Recombination

20 gennaio, 2017 - 00:00

Photoinduced Charge Separation Catalyzed by Manganese Oxides onto a Y‐Shaped Branching Acceptor Efficiently Preventing Charge Recombination

Why not get back together? Photoinduced charge separation dynamics mediated by Mn oxides, electron-wavepackets, and protons transfer in a coupled manner through mutually different pathways to different sites of a Y-shaped branched acceptor. This molecular shape and the presence of a doped Ca atom prevent the electron–proton pair created returning to the Mn oxide.

[Article]
Kentaro Yamamoto, Kazuo Takatsuka
ChemPhysChem, January 20, 2017, DOI: 10.1002/cphc.201601237. Read article

Frontispiece: Competent Route to Unsymmetric Dimer Architectures: Total Syntheses of (−)-Lycodine and (−)-Complanadines A and B, and Evaluation of Their Neurite Outgrowth Activities

20 gennaio, 2017 - 00:00

 Total Syntheses of (−)‐Lycodine and (−)‐Complanadines A and B, and Evaluation of Their Neurite Outgrowth Activities

Alkaloid Synthesis Structurally complex Lycopodium alkaloid complanadines A and B, both with unsymmetrical dimer architectures, were effectively synthesized by designing an appropriate intermediate based on C−H arylation. Our result suggests the intermediacy of a mono-N-oxide in the biosynthesis of dimeric alkaloids. This competent route enabled the evaluation of neuronal differentiation effects of both natural-type enantiomers and antipodes. More information can be found in the Full Paper by C. Tsukano et al. on page 802 ff.

[Frontispiece]
Le Zhao, Chihiro Tsukano, Eunsang Kwon, Hisashi Shirakawa, Shuji Kaneko, Yoshiji Takemoto, Masahiro Hirama
Chem. Eur. J., January 20, 2017, DOI: 10.1002/chem.201780463. Read article

Frontispiece: Time-Gated Detection of Cystathionine γ-Lyase Activity and Inhibition with a Selective, Luminogenic Hydrogen Sulfide Sensor

20 gennaio, 2017 - 00:00

 Time‐Gated Detection of Cystathionine &#x3B3;‐Lyase Activity and Inhibition with a Selective, Luminogenic Hydrogen Sulfide Sensor

Lanthanide Probes Hydrogen sulfide (H2S) functions as a signaling second messenger, and inhibition of H2S-producing enzymes may be a promising therapeutic strategy. The emissive lanthanide probe LLPS-LnIII generates strong turn-on luminescence via a unique mechanism. H2S-mediated reduction of an aryl azide moiety triggers an intramolecular cyclization to form a chromophore that sensitizes TbIII or EuIII luminescence. Time-gated detection with LLPS-LnIII enabled high-throughput screening for inhibition of H2S-producing cystathionine &#x3B3;-lyase. For more details, see the Communication by L. W. Miller et al. on page 752 ff.

[Frontispiece]
Yao Yao, Chen Kong, Liang Yin, Atul D. Jain, Kiira Ratia, Gregory R. J. Thatcher, Terry W. Moore, Tom G. Driver, Lawrence W. Miller
Chem. Eur. J., January 20, 2017, DOI: 10.1002/chem.201780462. Read article

Frontispiece: NMR Hyperpolarization Techniques of Gases

20 gennaio, 2017 - 00:00

 NMR Hyperpolarization Techniques of Gases

Hyperpolarization The fundamentals of preparation of hyperpolarized gases are detailed with a focus on selected applications of hyperpolarized gases to provide illustrative examples of their utility in biomedicine and materials sciences: remote detection, pulmonary imaging, gas-phase imaging, time-of-flight imaging, brown-fat imaging, and other imaging and spectroscopic applications. For more details, see the Minireview by E. Y. Chekmenev et al. on page 725 ff.

[Frontispiece]
Danila A. Barskiy, Aaron M. Coffey, Panayiotis Nikolaou, Dmitry M. Mikhaylov, Boyd M. Goodson, Rosa T. Branca, George J. Lu, Mikhail G. Shapiro, Ville-Veikko Telkki, Vladimir V. Zhivonitko, Igor V. Koptyug, Oleg G. Salnikov, Kirill V. Kovtunov, Valerii I. Bukhtiyarov, Matthew S. Rosen, Michael J. Barlow, Shahideh Safavi, Ian P. Hall, Leif Schröder, Eduard Y. Chekmenev
Chem. Eur. J., January 20, 2017, DOI: 10.1002/chem.201780461. Read article

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