Angewandte Chemie International Edition

Cover image for Vol. 53 Issue 36

Editor: Peter Gölitz, Deputy Editors: Neville Compton, Haymo Ross

Online ISSN: 1521-3773

Associated Title(s): Angewandte Chemie, Chemistry - A European Journal, Chemistry – An Asian Journal, ChemistryOpen, ChemPlusChem, Zeitschrift für Chemie

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August 29, 2014

Angewandte Chemie 36/2014: Click to Synthesize

Angewandte Chemie 36/2014: Click to SynthesizeIn this issue, K. B. Sharpless et al. review the sulfur(VI) fluoride exchange reaction (SuFEx): In what way is it another good reaction for click chemistry? The Highlight deals with the remote functionalization of C–H bonds (M. Beller et al.).

In the Communications section, A. Friedler et al. describe a tandem in situ peptide cyclization through trifluoroacetic acid cleavage (see picture). S.-G. He et al. report on the thermal methane conversion to formaldehyde by single platinum atoms located in cluster anions. C. J. Yang et al. succeeded in the preparation of a nanomicelle for real-time imaging and NIR cancer therapy. Sharpless, Fokin et al. present a synthesis of polysulfates by applying SuFEx click chemistry.

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August 29, 2014

Hot Paper: Hot-Electron-Transfer Enhancement for the Efficient Energy Conversion of Visible Light

Sungju Yu, Yong Hwa Kim, Su Young Lee, Hyeon Don Song and Prof. Jongheop Yi

Hot-Electron-Transfer Enhancement for the Efficient Energy Conversion of Visible LightA core–shell nanostructure with three distinct components enables the efficient production of H2 from water and significant electron harvesting under visible-light irradiation because of enhanced hot-electron injection, the formation of a Schottky junction, and high-performance electron filtering. The electron transfer pathway is elucidated through steady-state and time-resolved photoluminescence spectroscopy.

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August 29, 2014

Hot Paper: Anion–π and Cation–π Interactions on the Same Surface

Dr. Kaori Fujisawa, Dr. César Beuchat, Marie Humbert-Droz, Dr. Adam Wilson, Prof. Tomasz A. Wesolowski, Dr. Jiri Mareda, Dr. Naomi Sakai and Prof. Stefan Matile

Anion–π and Cation–π Interactions on the Same SurfaceIt takes two to tango: Theoretical and experimental evidence shows that anion–π and cation–π interactions can occur simultaneously on the same aromatic surface. The resulting ion pair–π interactions shift the absorption of push–pull chromophores to the red.

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August 29, 2014

Hot Paper: Hydrogen from Formic Acid through Its Selective Disproportionation over Sodium Germanate—A Non-Transition-Metal Catalysis System

Dr. Ruth I. J. Amos, Dr. Falk Heinroth, Dr. Bun Chan, Sisi Zheng, Prof. Brian S. Haynes, Prof. Christopher J. Easton, Prof. Anthony F. Masters, Prof. Leo Radom and Prof. Thomas Maschmeyer

Hydrogen from Formic Acid through Its Selective Disproportionation over Sodium Germanate—A Non-Transition-Metal Catalysis SystemFrom models to reality: A robust catalyst for the selective dehydrogenation of formic acid to liberate hydrogen gas has been designed computationally, and also demonstrated experimentally. This catalyst represents an important step towards the use of renewable formic acid as a hydrogen-storage and transport vector in fuel and energy applications.

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August 29, 2014

Hot Paper: The optimally performing Fischer–Tropsch catalyst

Ivo A. W. Filot, Prof. Dr. Rutger A. van Santen and Prof. Dr. Emiel J. M. Hensen

The optimally performing Fischer–Tropsch catalystState-of-the-art quantum-chemical reaction data were used in a microkinetics simulations study to elucidate the different fundamental kinetic regimes underlying Fischer–Tropsch activity and selectivity. Based on the nature of the rate-controlling steps, three regimes were identified: I) monomer formation, II) chain-growth termination, and III) water formation.

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August 29, 2014

VIP: Bipolar Tribocharging Signal During Friction Force Fluctuations at Metal–Insulator Interfaces

Dr. Thiago A. L. Burgo and Dr. Ali Erdemir

Bipolar Tribocharging Signal During Friction Force Fluctuations at Metal–Insulator InterfacesFriction force fluctuation and tribocurrent generation at metal–insulator interfaces show a strong correlation during sliding contacts. The reported results suggest that these two phenomena have a common origin that must be associated with the occurrence of strong electrostatic interactions at the interface.

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August 29, 2014

VIP: Unravelling the Correlation between the Aspect Ratio of Nanotubular Structures and Their Electrochemical Performance To Achieve High-Rate and Long-Life Lithium-Ion Batteries

Dr. Yuxin Tang, Dr. Yanyan Zhang, Jiyang Deng, Dr. Dianpeng Qi, Wan Ru Leow, Jiaqi Wei, Dr. Shengyan Yin, Prof. Zhili Dong, Prof. Rachid Yazami, Prof. Zhong Chen and Prof. Xiaodong Chen

Unravelling the Correlation between the Aspect Ratio of Nanotubular Structures and Their Electrochemical Performance To Achieve High-Rate and Long-Life Lithium-Ion BatteriesA new aspect: When titanate-based nanotubes are used to fabricate electrode materials, the aspect ratio of the nanostructures correlates with the electrochemical performance in lithium-ion batteries. These insights should be useful in the development of efficient energy devices based on nanomaterials.

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August 28, 2014

Hot Paper: Super-Resolution Imaging of Plasma Membrane Glycans

Sebastian Letschert, Dr. Antonia Göhler, Christian Franke, Nadja Bertleff-Zieschang, Elisabeth Memmel, Priv.-Doz. Dr. Sören Doose, Prof. Dr. Jürgen Seibel and Prof. Dr. Markus Sauer

Super-Resolution Imaging of Plasma Membrane GlycansGlycan spotting: Click chemistry and super-resolution imaging was used to visualize and quantify ManNAc-, GalNAc-, and O-GlcNAc-modified glycans in the plasma membrane of mammalian cells with single-molecule sensitivity (see image). The data demonstrate that a single cell may easily contain more than ten million glycans, which are homogeneously distributed and do not form clusters or nanodomains.

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August 28, 2014

Hot Paper: Direct Catalytic Olefination of Alcohols with Sulfones

Dr. Dipankar Srimani, Dr. Gregory Leitus, Yehoshoa Ben-David and Prof. Dr. David Milstein

Direct Catalytic Olefination of Alcohols with SulfonesThe one-step olefination of alcohols with sulfones for the direct synthesis of terminal and internal olefins is catalyzed by ruthenium pincer complexes. Furthermore, performing the reaction with dimethyl sulfone under mild hydrogen pressure provides a one-step method for the replacement of alcohol hydroxy groups by methyl groups.

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August 28, 2014

Hot Paper: Dialdehydes Lead to Exceptionally Fast Bioconjugations at Neutral pH by Virtue of a Cyclic Intermediate

Pascal Schmidt, Dr. Linna Zhou, Kiril Tishinov, Kaspar Zimmermann and Prof. Dr. Dennis Gillingham

Dialdehydes Lead to Exceptionally Fast Bioconjugations at Neutral pH by Virtue of a Cyclic IntermediateFor aldehydes, 1+1=500: Dialdehydes react with O-alkylhydroxylamines at rates of 500 M−1 s−1 at neutral pH values in the absence of catalysts. The key to these conjugations is an unusually stable cyclic intermediate, which ultimately undergoes dehydration to yield an oxime. The application of this method in bioconjugations and a mechanistic interpretation are outlined.

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August 28, 2014

VIP: Sustainable Electrical Energy Storage through the Ferrocene/Ferrocenium Redox Reaction in Aprotic Electrolyte

Dr. Yu Zhao, Yu Ding, Dr. Jie Song, Dr. Gang Li, Prof. Guangbin Dong, Prof. John B. Goodenough and Prof. Guihua Yu

Sustainable Electrical Energy Storage through the Ferrocene/Ferrocenium Redox Reaction in Aprotic ElectrolyteThe redox couple ferrocene/ferrocenium is applied for the construction of a liquid cathode Li-ion redox battery for electrical energy storage. The redox reaction is highly reversible and efficient. Even after 250 full charge/discharge cycles the capacity maintains ca. 90 % of the initial value and the Coulombic efficiency reaches 98–100 %.

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August 26, 2014

Hot Paper: Aldehyde-Assisted Ruthenium(II)-Catalyzed C[BOND]H Oxygenations

M. Sc. Fanzhi Yang, Karsten Rauch, M. Sc. Katharina Kettelhoit and Prof. Dr. Lutz Ackermann

Aldehyde-Assisted Ruthenium(II)-Catalyzed C<img src="http://onlinelibrarystatic.wiley.com/undisplayable_characters/00f8ff.gif" alt="[BOND]" />H OxygenationsThe weakest link: Challenging aryl C[BOND]H oxygenations with very weakly coordinating aldehydes proceed chemoselectively in the presence of versatile ruthenium(II) catalysts under mild reaction conditions. This transformation features an ample substrate scope and excellent positional selectivity.

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August 29, 2014
Angewandte Chemie 36/2014: Click to Synthesize

August 29, 2014
Hot Paper: Hot-Electron-Transfer Enhancement for the Efficient Energy Conversion of Visible Light

August 29, 2014
Hot Paper: Anion–π and Cation–π Interactions on the Same Surface

August 29, 2014
Hot Paper: Hydrogen from Formic Acid through Its Selective Disproportionation over Sodium Germanate—A Non-Transition-Metal Catalysis System

August 29, 2014
Hot Paper: The optimally performing Fischer–Tropsch catalyst

August 29, 2014
VIP: Bipolar Tribocharging Signal During Friction Force Fluctuations at Metal–Insulator Interfaces

August 29, 2014
VIP: Unravelling the Correlation between the Aspect Ratio of Nanotubular Structures and Their Electrochemical Performance To Achieve High-Rate and Long-Life Lithium-Ion Batteries

August 28, 2014
Hot Paper: Super-Resolution Imaging of Plasma Membrane Glycans

August 28, 2014
Hot Paper: Direct Catalytic Olefination of Alcohols with Sulfones

August 28, 2014
Hot Paper: Dialdehydes Lead to Exceptionally Fast Bioconjugations at Neutral pH by Virtue of a Cyclic Intermediate

August 28, 2014
VIP: Sustainable Electrical Energy Storage through the Ferrocene/Ferrocenium Redox Reaction in Aprotic Electrolyte

August 26, 2014
Hot Paper: Aldehyde-Assisted Ruthenium(II)-Catalyzed C[BOND]H Oxygenations

August 26, 2014
VIP: Core/Shell Au/MnO Nanoparticles Prepared Through Controlled Oxidation of AuMn as an Electrocatalyst for Sensitive H2O2 Detection

August 26, 2014
VIP: A Lightweight Polymer Solar Cell Textile that Functions when Illuminated from Either Side

August 26, 2014
Hot Paper: Controlling Selectivity in the Chlorine Evolution Reaction over RuO2-Based Catalysts

August 26, 2014
VIP: Highly Diastereoselective and Enantiospecific Allylation of Ketones and Imines Using Borinic Esters: Contiguous Quaternary Stereogenic Centers

August 26, 2014
VIP: Exceptional Isotopic-Substitution Effect: Breakdown of Collective Proton Tunneling in Hexagonal Ice due to Partial Deuteration

August 22, 2014
Angewandte Chemie 35/2014: Inspiration and Automation

August 22, 2014
Hot Paper: Unexpected Synergy between Magnetic Iron Chains and Stacked B6 Rings in Nb6Fe1−xIr6+xB8

August 22, 2014
Hot Paper: Vanadium-Catalyzed Solvent-Free Synthesis of Quaternary α-Trifluoromethyl Nitriles by Electrophilic Trifluoromethylation

August 22, 2014
Hot Paper: Ruthenium-Catalyzed Reductive Methylation of Imines Using Carbon Dioxide and Molecular Hydrogen

August 22, 2014
VIP: Long-Lived Trifluoromethanide Anion: A Key Intermediate in Nucleophilic Trifluoromethylations

August 20, 2014
Hot Paper: Planet–Satellite Nanostructures Made To Order by RAFT Star Polymers

August 20, 2014
Hot Paper: Phosphonated Near-Infrared Fluorophores for Biomedical Imaging of Bone

August 20, 2014
VIP: Chiral Amine Synthesis Using ω-Transaminases: An Amine Donor that Displaces Equilibria and Enables High-Throughput Screening

August 20, 2014
VIP: Reconfigurable Swarms of Nematic Colloids Controlled by Photoactivated Surface Patterns

August 19, 2014
Max Planck Institute for Coal Research Celebrates 100th Anniversary

August 15, 2014
Hot Paper: Harvesting Solar Light with Crystalline Carbon Nitrides for Efficient Photocatalytic Hydrogen Evolution

August 15, 2014
Hot Paper: Oxygen Reduction Reaction in a Droplet on Graphite: Direct Evidence that the Edge is More Active than the Basal Plane

August 13, 2014
Hot Paper: One-Pot Enzymatic Synthesis of Merochlorin A and B

August 13, 2014
VIP: A Designed Conformational Shift To Control Protein Binding Specificity

August 12, 2014
Hot Paper: Metal-Free Hydrogenation Catalyzed by an Air-Stable Borane: Use of Solvent as a Frustrated Lewis Base

August 11, 2014
Hot Paper: Visualizing an Ultra-Weak Protein–Protein Interaction in Phosphorylation Signaling

August 11, 2014
Hot Paper: Carbon Dioxide as a Protecting Group: Highly Efficient and Selective Catalytic Access to Cyclic cis-Diol Scaffolds

August 11, 2014
Hot Paper: N-Heterocyclic Carbene Catalyzed Formal [3+2] Annulation Reaction of Enals: An Efficient Enantioselective Access to Spiro-Heterocycles

August 11, 2014
Hot Paper: Mononuclear and Terminal Zirconium and Hafnium Methylidenes

August 11, 2014
Hot Paper: A New Class of Organocatalysts: Sulfenate Anions

August 07, 2014
Hot Paper: SuFEx-Based Synthesis of Polysulfates

August 07, 2014
Hot Paper: Iron-Catalyzed C(sp2)[BOND]H Alkylation of Carboxamides with Primary Electrophiles

August 07, 2014
VIP: Switchable Bifunctional Stimuli-Triggered Poly-N-Isopropylacrylamide/DNA Hydrogels

August 02, 2014
Hot Paper: Sequential Gene Silencing Using Wavelength-Selective Caged Morpholino Oligonucleotides

August 01, 2014
Hot Paper: Ultra-Low-Field NMR Relaxation and Diffusion Measurements Using an Optical Magnetometer

August 01, 2014
Hot Paper: Super-Resolution Imaging of the Golgi in Live Cells with a Bioorthogonal Ceramide Probe

August 01, 2014
VIP: Reprogramming Nonribosomal Peptide Synthetases for “Clickable” Amino Acids

July 31, 2014
Hot Paper: Paenilamicin: Structure and Biosynthesis of a Hybrid Nonribosomal Peptide/Polyketide Antibiotic from the Bee Pathogen Paenibacillus larvae

July 31, 2014
Hot Paper: Tumor-Targeting of EGFR Inhibitors by Hypoxia-Mediated Activation

July 29, 2014
Hot Paper: Chemical Vapor Detection Using a Reconstituted Insect Olfactory Receptor Complex

July 28, 2014
Hot Paper: Mapping Polyamide–DNA Interactions in Human Cells Reveals a New Design Strategy for Effective Targeting of Genomic Sites

July 24, 2014
Hot Paper: Cell-Penetrating, Dimeric α-Helical Peptides: Nanomolar Inhibitors of HIV-1 Transcription

July 24, 2014
VIP: An Easy Way To Prepare Monolithic Inorganic Oxide Aerogels

July 24, 2014
VIP: Monitoring Morphology and Hydrogen Coverage of Nanometric Pt/γ-Al2O3 Particles by In Situ HERFD–XANES and Quantum Simulations

April 16, 2014
VIP: Decay of FeV Nitride Complexes by a N–N Bond Coupling Reaction in Solution: A Combined Spectroscopic and Theoretical Analysis

March 05, 2014
VIP: Rate Coefficients of Criegee Intermediate (CH2OO and CH3CHOO) Reactions with Formic and Acetic Acid Are Close to Their Collision Limit: Direct Kinetics Measurements and Atmospheric Implications

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