Angewandte Chemie International Edition
© WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
The following papers are very important in the opinion of two referees.
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Triple-Mode Emission of Carbon Dots: Applications for Advanced Anti-Counterfeiting
Kai Jiang, Dr. Ling Zhang, Junfeng Lu, Prof. Chunxiang Xu, Prof. Congzhong Cai and Prof. Hengwei Lin
Show me the money! A composite comprising carbon dots exhibits three kinds of emission simultaneously: photoluminescence (PL), up-conversion PL (UCPL), and room temperature phosphorescence (RTP). This unique feature could be applied to combat counterfeiting in the form of a printable ink with three modes of optical authentication.
A Tandem Catalyst with Multiple Metal-Oxide Interfaces Produced by Atomic Layer Deposition
Huibin Ge, Dr. Bin Zhang, Xiaomin Gu, Haojie Liang, Huimin Yang, Dr. Zhe Gao, Prof. Jianguo Wang and Prof. Yong Qin
A tandem catalyst based on Ni/Al2O3 and Pt/TiO2 with multiple metal-oxide interfaces showed high efficiency in the hydrogenation of nitrobenzene using N2H4⋅H2O as hydrogen source. The synergy of the Ni/Al2O3 and Pt/TiO2 interfaces in a confined nanospace led to the observed activity enhancement. The confined nanospace favored the instant transfer of intermediates between the two metal-oxide interfaces.
An Air-Stable Semiconducting Polymer Containing Dithieno[3,2-b:2′,3′-d]arsole
Joshua P. Green, Dr. Yang Han, Rebecca Kilmurray, Prof. Martyn A. McLachlan, Prof. Thomas D. Anthopoulos and Prof. Martin Heeney
Arsenic-containing conjugated polymers were obtained by copolymerization of the first dithieno[3,2-b;2′,3′-d]arsole derivative. These polymers are stable under ambient conditions in their +3 oxidation state and display p-type semiconductivity with promising hole mobility in field-effect transistors.
Advanced High-Voltage Aqueous Lithium-Ion Battery Enabled by “Water-in-Bisalt” Electrolyte
Dr. Liumin Suo, Dr. Oleg Borodin, Wei Sun, Dr. Xiulin Fan, Dr. Chongyin Yang, Dr. Fei Wang, Tao Gao, Dr. Zhaohui Ma, Dr. Marshall Schroeder, Dr. Arthur von Cresce, Dr. Selena M. Russell, Prof. Michel Armand, Prof. Austen Angell, Dr. Kang Xu and Prof. Chunsheng Wang
Ready salted: A new class of electrolyte a “water-in-bisalt” electrolyte, that is, an electrolyte made from two salts, has a wider electrochemical stability window for aqueous lithium-ion batteries. The unprecedented high ionic density in the solution effectively suppresses hydrogen evolution and promotes the formation of a more protective solid electrolyte interphase (SEI).
A Phytochrome Sensory Domain Permits Receptor Activation by Red Light
Eva Reichhart, Dr. Alvaro Ingles-Prieto, Alexandra-Madelaine Tichy, Catherine McKenzie and Dr. Harald Janovjak
Go deep with red: The sensory domain (S) of the cyanobacterial phytochrome 1 (CPH1) was repurposed to induce the homodimerization of proteins in living cells by red light. By using this domain, light-activated protein kinases were engineered that can be activated orthogonally from many fluorescent proteins and through mammalian tissue. Pr/Pfr=red-/far-red-absorbing state of CPH1.
Dual-Doped Molybdenum Trioxide Nanowires: A Bifunctional Anode for Fiber-Shaped Asymmetric Supercapacitors and Microbial Fuel Cells
Minghao Yu, Xinyu Cheng, Yinxiang Zeng, Zilong Wang, Prof. Yexiang Tong, Prof. Xihong Lu and Prof. Shihe Yang
High-performance fiber-shaped electrodes: A strategy for dual doping with nitrogen and low-valent molybdenum atoms was used to improve the electrochemical properties of MoO3. The dual-doped MoO3 nanowires showed exceptional device performances as bifunctional anode material for both fiber-shaped asymmetric supercapacitors (ASCs) and microbial fuel cells (MFCs).
Facile Surfactant-Free Synthesis of p-type SnSe Nanoplates with Exceptional Thermoelectric Power Factors
Dr. Guang Han, Dr. Srinivas R. Popuri, Dr. Heather F. Greer, Dr. Jan-Willem G. Bos, Prof. Wuzong Zhou, Prof. Andrew R. Knox, Dr. Andrea Montecucco, Dr. Jonathan Siviter, Dr. Elena A. Man, Dr. Martin Macauley, Prof. Douglas J. Paul, Prof. Wen-guang Li, Dr. Manosh C. Paul, Dr. Min Gao, Dr. Tracy Sweet, Prof. Robert Freer, Dr. Feridoon Azough, Dr. Hasan Baig, Dr. Nazmi Sellami, Prof. Tapas K. Mallick and Prof. Duncan H. Gregory
A surfactant-free aqueous solution methodology has been developed for the straightforward synthesis of SnSe nanoplates in gram quantities, which can be hot-pressed into nanostructured compacts with much higher thermoelectric power factors than surfactant-prepared products and comparable values to bulk polycrystalline counterparts.
Rechargeable Room-Temperature Na–CO2 Batteries
Dr. Xiaofei Hu, Jianchao Sun, Zifan Li, Qing Zhao, Chengcheng Chen and Prof. Jun Chen
Building a better battery: Developing rechargeable metal–CO2 batteries represents a “clean” strategy for advanced energy storage/conversion systems. A rechargeable room-temperature Na–CO2 battery with superior performance is reported, with the reaction of 4 Na+3 CO2⇄2 Na2CO3+C.
Magnetically and Near-Infrared Light-Powered Supramolecular Nanotransporters for the Remote Control of Enzymatic Reactions
Dr. Svetlana A. Chechetka, Dr. Eiji Yuba, Prof. Kenji Kono, Dr. Masako Yudasaka, Dr. Alberto Bianco and Dr. Eijiro Miyako
Nanorobots: Magnetic nanoparticle–carbon nanohorn–liposome supramolecular nanotransporters were developed. The remotely controlled release of functional molecules contained in the nanotransporters was achieved by applying a magnetic field and near-infrared laser light. The nanotransporters enabled enzymatic reactions at target sites in cells and mice.
(Enantio)selective Hydrogen Autotransfer: Ruthenium-Catalyzed Synthesis of Oxazolidin-2-ones from Urea and Diols
Dr. Miguel Peña-López, Dr. Helfried Neumann and Prof. Dr. Matthias Beller
Oxazolidin-2-ones were synthesized from vicinal diols and urea or carbamates in a ruthenium-catalyzed process. The sequential formation of one C−O and one C−N bond takes place in a highly chemo- and regioselective, atom-efficient domino process, which can be rendered enantioselective when an appropriate chiral ligand is used.
Structure-Dependent cis/trans Isomerization of Tetraphenylethene Derivatives: Consequences for Aggregation-Induced Emission
Dr. Chong-Jing Zhang, Dr. Guangxue Feng, Shidang Xu, Dr. Zhenshu Zhu, Prof. Dr. Xianmao Lu, Dr. Jien Wu and Prof. Dr. Bin Liu
The cis and trans isomers of a tetraphenylethene derivative with aggregation-induced emission, TPETH-MAL, were characterized by HPLC analysis and NMR spectroscopy. cis-TPETH-MAL emits yellow fluorescence in DMSO at −20 °C whereas trans-TPETH-MAL shows red fluorescence under the same conditions.
CuI/Oxalamide Catalyzed Couplings of (Hetero)aryl Chlorides and Phenols for Diaryl Ether Formation
Mengyang Fan, Wei Zhou, Prof. Dr. Yongwen Jiang and Prof. Dr. Dawei Ma
Aryl and alkyl: N-Aryl-N′-alkyl-substituted oxalamide ligands promote the CuI catalyzed coupling of (hetero)aryl chlorides and phenols at 120 °C more effectively than bis(N-aryl)-substituted oxalamides. A wide range of electron-rich and electron-poor aryl and heteroaryl chlorides were converted into the corresponding coupling products in good yields.
Total Synthesis of (−)-Daphenylline
Ryosuke Yamada, Dr. Yohei Adachi, Dr. Satoshi Yokoshima and Prof. Tohru Fukuyama
Ring ring ring: Total synthesis of daphenylline, a hexacyclic Daphniphyllum alkaloid, was achieved. The synthesis features a remote stereocontrolled Claisen rearrangement that takes advantage of the characteristic conformation of the tricyclic DEF core, and intramolecular cycloaddition of a cyclic azomethine ylide to simultaneously construct the ABC ring system.
Integration of Semiconducting Sulfides for Full-Spectrum Solar Energy Absorption and Efficient Charge Separation
Tao-Tao Zhuang, Yan Liu, Yi Li, Yuan Zhao, Liang Wu, Prof. Dr. Jun Jiang and Prof. Dr. Shu-Hong Yu
Three semiconducting sulfides, namely ZnS, CdS, and Cu2−xS, were combined to obtain ternary ZnS–CdS–Cu2−xS heteronanorods. The pn heterojunctions between Cu2−xS and CdS induce staggered gaps, as confirmed by first-principles simulations. This band alignment leads to effective electron–hole separation in this ternary system and hence enables efficient solar energy conversion.
Identification of the Key Enzyme of Roseoflavin Biosynthesis
Dr. Julia Schwarz, Valentino Konjik, Dr. Frank Jankowitsch, Prof. Dr. Roger Sandhoff and Prof. Dr. Matthias Mack
All by myself: Unexpectedly, a single enzyme (RosB) was found to catalyze several essential steps of the biosynthesis of the antibiotic roseoflavin from riboflavin (vitamin B2). RosB was identified in the bacterium Streptomyces davawensis, which was used to produce roseoflavin in a bioreactor containing a nutrient broth.
Enantioselective Synthesis of Silacyclopentanes
Dr. Kazunobu Igawa, Daisuke Yoshihiro, Yusuke Abe and Prof. Dr. Katsuhiko Tomooka
Silacyclopentene oxides were converted into functionalized silacyclopentanes by highly enantioselective β-elimination followed by various stereospecific transformations. The reaction mechanism of the β-elimination was analyzed by DFT calculations. A hydroxy-substituted silacyclopentane showed substantial binding to a serotonin receptor protein in an in vitro assay.
Stereoselective Formation of Fully Substituted Ketone Enolates
Elvira Haimov, Dr. Zackaria Nairoukh, Dr. Alexander Shterenberg, Tiran Berkovitz, Prof. Dr. Timothy F. Jamison and Prof. Dr. Ilan Marek
The formation of several new stereogenic centers via α,α-disubstituted ketone enolates as single stereoisomers is enabled by an approach that combines metalation, carbonyl addition, and carbamoyl transfer. A series of aldol and Mannich products are obtained from enol carbamates with excellent diastereomeric ratios in a single-pot operation.
Modulating fcc and hcp Ruthenium on the Surface of Palladium–Copper Alloy through Tunable Lattice Mismatch
Yancai Yao, Dong Sheng He, Yue Lin, Xiaoqian Feng, Xin Wang, Peiqun Yin, Xun Hong, Gang Zhou, Yuen Wu and Yadong Li
On the face of it: Epitaxial growth of the rare face-centered cubic (fcc) Ru phase is possible on the surface of a Pd–Cu alloy to build a unique Pd–Cu@Ru yolk–shell structure. Through varying the lattice spacing of the Pd–Cu substrate both fcc and hexagonal close packed (hcp) Ru can be selectively grown.
A Vancomycin Derivative with a Pyrophosphate-Binding Group: A Strategy to Combat Vancomycin-Resistant Bacteria
Dr. Venkateswarlu Yarlagadda, Paramita Sarkar, Dr. Sandip Samaddar and Dr. Jayanta Haldar
The glycopeptide antibiotic Dipi-van, with a zinc-binding dipicolyl moiety, is highly active against vancomycin-resistant bacteria as it binds to pyrophosphate groups of cell-wall lipids by the formation of zinc complexes while maintaining its inherent binding ability for the pentapeptide termini of cell-wall precursors. Cell-wall biosynthesis is thus inhibited.