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Angewandte Chemie

f‐Element Half‐Sandwich Complexes: A Tetrasilylcyclobutadienyl–Uranium(IV)–Tris(tetrahydroborate) Anion Pianostool Complex

Published: 06 December 2019

Author(s): Josef T. Boronski, Laurence R. Doyle, John A. Seed, Ashley J. Wooles, Stephen T. Liddle

Abstract Despite there being numerous examples of f‐element compounds supported by cyclopentadienyl, arene, cycloheptatrienyl, and cyclooctatetraenyl ligands (C5–8), cyclobutadienyl (C4) complexes remain exceedingly rare. Here, we report that reaction of [Li2{C4(SiMe3)4}(THF)2] (1) with [U(BH4)3(THF)2] (2) gives the pianostool complex [U{C4(SiMe3)4}(BH4)3][Li(THF)4] (3), where use of a borohydride and preformed C4‐unit circumvents difficulties in product isolation and closing a C4‐ring at...

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Angewandte Chemie

Structure and Properties of Violet Phosphorus and Its Phosphorene Exfoliation

Published: 06 December 2019

Author(s): Lihui Zhang, Hongyang Huang, Bo Zhang, Mengyue Gu, Dan Zhao, Xuewen Zhao, Longren Li, Jun Zhou, Kai Wu, Yonghong Cheng, Jinying Zhang

Abstract Black phosphorene has attracted much attention as a semiconducting two‐dimensional material. Violet phosphorus is another layered semiconducting phosphorus allotrope with unique electronic and optoelectronic properties. However, no confirmed violet crystals or reliable lattice structure of violet phosphorus had been obtained. Now, violet phosphorus single crystals were produced and the lattice structure has been obtained by single‐crystal x‐ray diffraction to be monoclinic with space...

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Angewandte Chemie

Green Metal‐Free Photochemical Hydroacylation of Unactivated Olefins

Published: 06 December 2019

Author(s): Errika Voutyritsa, Christoforos G. Kokotos

Abstract Direct alkylation of C(sp2)−H bonds to convert an aldehyde into a ketone is a notorious transformation, due to the laborious challenge of the formation of ketyl or acyl radicals. Herein, we report a green, cheap, metal‐free and efficient method for the hydroacylation of olefins in water. This photochemical protocol utilizes phenylglyoxylic acid, a commercially available small organic molecule, as the photoinitiator, water as the solvent and household fluorescent lamps as the...

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Chemistry - A European Journal

Facile Generation of Thermally Activated Delayed Fluorescence and Fabrication of Highly Efficient Non‐Doped OLEDs Based on Triazine Derivatives

Published: 06 December 2019

Author(s): Chih‐Hao Chang, Chin‐Wei Lu, Wei‐Wen Tsai, Ting‐Ya Chiu, Chun‐Han Lin, Chia‐Wei Liao, Wei‐Cheng Li, Yi‐Chun Hsieh, Ying‐Wei Chen, Hsin‐Yun Chih

Abstract A series of donor–acceptor–donor triazine‐based molecules with thermally activated delayed fluorescence (TADF) properties were synthesized to obtain highly efficient blue‐emitting OLEDs with non‐doped emitting layers (EMLs). The targeted molecules use a triazine core as the electron acceptor, and a benzene ring as the conjugated linker with different electron donors to alternate the energy level of the HOMO to further tune the emission color. The introduction of long alkyl chains on...

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Angewandte Chemie

Photoactivated Fluorescence Enhancement in F,N‐Doped Carbon Dots with Piezochromic Behavior

Published: 06 December 2019

Author(s): Hong Bi, Bo Zou, Guanjun Xiao, Ting Geng, Siyu Lu, Haizhen Ding, Lei Jiang

Abstract Photoactivation in CdSe/ZnS quantum dots (QDs) on UV/Vis light exposure improves photoluminescence (PL) and photostability. However, it was not observed in fluorescent carbon quantum dots (CDs). Now, photoactivated fluorescence enhancement in fluorine and nitrogen co‐doped carbon dots (F,N‐doped CDs) is presented. At 1.0 atm, the fluorescence intensity of F,N‐doped CDs increases with UV light irradiation (5 s–30 min), accompanied with a blue‐shift of the fluorescence emission from...

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Angewandte Chemie

An Ultrasound Activated Vesicle of Janus Au‐MnO Nanoparticles for Promoted Tumor Penetration and Sono‐Chemodynamic Therapy of Orthotopic Liver Cancer

Published: 06 December 2019

Author(s): Xiahui Lin, Shuya Liu, Xuan Zhang, Rong Zhu, Shan Chen, Xiaoyuan Chen, Jibin Song, Huanghao Yang

Abstract Sonodynamic therapy (SDT) has the advantages of high penetration, non‐invasiveness, and controllability, and it is suitable for deep‐seated tumors. However, there is still a lack of effective sonosensitizers with high sensitivity, safety, and penetration. Now, ultrasound (US) and glutathione (GSH) dual responsive vesicles of Janus Au‐MnO nanoparticles (JNPs) were coated with PEG and a ROS‐sensitive polymer. Upon US irradiation, the vesicles were disassembled into small Janus Au‐MnO...

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Magnetic Resonance in Chemistry

Recent advances in computational 31P NMR: Part 2. Spin–spin coupling constants

Published: 06 December 2019

Author(s): Leonid B. Krivdin

Abstract This is the second part of two closely related reviews dealing with the computation of 31P nuclear magnetic resonance (NMR) parameters in a wide range of phosphorous containing compounds. The first part of this review concentrated primarily on the computation of 31P NMR chemical shifts, whereas the second part concerns the calculation of spin–spin coupling constants involving phosphorus nucleus, focusing primarily on their stereochemical dependencies and stereodynamic behavior in...

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Clinical and Experimental Pharmacology and Physiology

Phycocyanobilin reduces brain injury after endothelin‐1‐ induced focal cerebral ischaemia

Published: 06 December 2019

Author(s): Nancy Pavón‐Fuentes, Javier Marín‐Prida, Alexey Llópiz‐Arzuaga, Viviana Falcón‐Cama, Rosario Campos‐Mojena, Majel Cervantes‐Llanos, Beatriz Piniella‐Matamoros, Eduardo Pentón‐Arias, Giselle Pentón‐Rol

Abstract Pharmacological therapies for interrupting biochemical events of the ischaemic cascade and protecting against stroke in humans are as yet unavailable. Up to now, the neuroprotective activity in cerebral ischaemia of phycocyanobilin (PCB), a tetrapyrrolic natural antioxidant, has not been fully examined. Here, we evaluated if PCB protects PC12 neuronal cells against oxygen and glucose deprivation plus reperfusion, and its protective effects in a rat model of endothelin‐1‐induced focal...

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Clinical and Experimental Pharmacology and Physiology

Comparative effectiveness of different antiplatelet agents at reducing TNF‐driven inflammatory responses in a mouse model

Published: 06 December 2019

Author(s): Hae‐Ri Lee, Kyung‐Yeon Park, Young‐Jin Jeong, Tae‐Hwe Heo

Abstract Antiplatelet drugs are conventionally used as treatments because of their anti‐coagulation functions. However, their pleiotropic effects are of great significance to the treatment of ischaemic cardiovascular diseases. Many studies have reported that an excessive amount of inflammation driven by tumour necrosis factor (TNF) is closely related to the prevalence of atherosclerosis. As the drug selection criteria and evaluation methods related to the anti‐TNF activity of antiplatelet...

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Journal of Physical Organic Chemistry

Quantitative study of the substituent effects on the electronic absorption and fluorescence spectra of coumarins

Published: 06 December 2019

Author(s): Lamine Cisse, Abdoulaye Djande, Martine Capo‐Chichi, Abdourahmane Khonté, Jean‐Pierre Bakhoum, François Delattre, Jules Yoda, Adama Saba, Alphonse Tine, Jean‐Jacques Aaron

Abstract Because of their important fluorescence properties, coumarins are widely applied in sensing devices. In this paper, the electronic inductive, mesomeric, and electromeric substituent effects on the electronic absorption and fluorescence spectra of 11 substituted coumarins, including NH2, NMe2, NEt2, OH, CF3, CH3, COOH, Cl, and Br substituents, have been quantitatively studied by means of structure‐reactivity relationships. We have applied the Hammett, Brown‐Okamoto, and Yukawa‐Tsuno...

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Most-accessed articles from each ChemPubSoc Europe, ACES, and GDCh journal

August 2019

 


Hartmuth C. Kolb, M. G. Finn, K. Barry Sharpless
Click Chemistry: Diverse Chemical Function from a Few Good Reactions [Review]
Angew. Chem. Int. Ed. 2001, vol. 40, no. 11, p. 2004

Bing Liu, Lihui He, Liping Wang, Tao Li, Changcheng Li, Huayi Liu, Yunzi Luo, Rui Bao
Protein Crystallography and Site-Direct Mutagenesis Analysis of the Poly(ethylene terephthalate) Hydrolase PETase from Ideonella sakaiensis [Communication]
ChemBioChem 2018, vol. 19, no. 14, p. 1471

Petra E. de Jongh, Deryn E. Fogg, Li-Zhu Wu, Sandra González-Gallardo
Meet the Women of Catalysis [Editorial]
ChemCatChem 2019, vol. 11, no. 16, p. 3557

V. N. Danilevich, L. E. Petrovskaya, E. V. Grishin
A Highly Efficient Procedure for the Extraction of Soluble Proteins from Bacterial Cells with Mild Chaotropic Solutions [Research Article]
Chem. Eng. Technol. 2008, vol. 31, no. 6, p. 904

Rainer Stosch, Olaf Rienitz, Axel Pramann, Bernd Güttler
Wie viele Moleküle enthält ein Mol? [Artikel]
Chem. Unserer Zeit 2019, vol. 53, no. 4, p. 256

Benjamin A. E. Lehner, Vera A. E. C. Janssen, Ewa M. Spiesz, Dominik Benz, Stan J. J. Brouns, Anne S. Meyer, Herre S. J. van der Zant
Creation of Conductive Graphene Materials by Bacterial Reduction Using Shewanella Oneidensis [Full Paper]
ChemistryOpen 2019, vol. 8, no. 7, p. 888

Hanshen Xin, Xike Gao
Application of Azulene in Constructing Organic Optoelectronic Materials: New Tricks for an Old Dog [Minireview]
ChemPlusChem 2017, vol. 82, no. 7, p. 945

Miaofang Chi, Harry M. Meyer, Zili Wu, Liangbo Liang, Peter V. Bonnesen, Dale K. Hensley, Rui Peng, Yang Song, Cheng Ma, Bobby G. Sumpter, Adam J. Rondinone
High-Selectivity Electrochemical Conversion of CO2 to Ethanol using a Copper Nanoparticle/N-Doped Graphene Electrode [Full Paper]
ChemistrySelect 2016, vol. 1, no. 19, p. 6055

Michael C. Zimmermann, Thomas N. Otto, Simon Wodarz, Thomas A. Zevaco, Stephan Pitter
Mesoporous H-ZSM-5 for the Conversion of Dimethyl Ether to Hydrocarbons [Research Article]
Chem. Ing. Tech. 2019, vol. 91, no. 9, p. 1302

Abas Mohsenzadeh, Akram Zamani, Mohammad J. Taherzadeh
Bioethylene Production from Ethanol: A Review and Techno-economical Evaluation [Review]
ChemBioEng Rev. 2017, vol. 4, no. 2, p. 75

Andrey Shatskiy, Helena Lundberg, Markus D. Kärkäs
Organic Electrosynthesis: Applications in Complex Molecule Synthesis [Review]
ChemElectroChem 2019, vol. 6, no. 16, p. 4067

S. Ghosh, B. Pradhan
Lead-Free Metal Halide Perovskite Nanocrystals: Challenges, Applications, and Future Aspects [Minireview]
ChemNanoMat 2019, vol. 5, no. 3, p. 300

João M. J. M. Ravasco, Hélio Faustino, Alexandre Trindade, Pedro M. P. Gois
Bioconjugation with Maleimides: A Useful Tool for Chemical Biology [Review]
Chem. Eur. J. 2019, vol. 25, no. 1, p. 43

Stephanie C. C. van der Lubbe, Célia Fonseca Guerra
The Nature of Hydrogen Bonds: A Delineation of the Role of Different Energy Components on Hydrogen Bond Strengths and Lengths [Minireview]
Chem. Asian J. 2019, vol. 14, no. 16, p. 2760

Adrian G. Amador, Evan M. Sherbrook, Tehshik P. Yoon
A Redox Auxiliary Strategy for Pyrrolidine Synthesis via Photocatalytic [3+2] Cycloaddition [Full Paper]
Asian J. Org. Chem. 2019, vol. 8, no. 7, p. 978

Avick Kumar Ghosh, Indranil Samanta, Anushree Mondal, Wenshe Ray Liu
Covalent Inhibition in Drug Discovery [Review]
ChemMedChem 2019, vol. 14, no. 9, p. 889

Andrea Álvarez, Marta Borges, Juan José Corral-Pérez, Joan Giner Olcina, Lingjun Hu, Damien Cornu, Rui Huang, Dragos Stoian, Atsushi Urakawa
CO2 Activation over Catalytic Surfaces [Concept]
ChemPhysChem 2017, vol. 18, no. 22, p. 3135

Matthias Freitag, Nadja Möller, Andreas Rühling, Cristian A. Strassert, Bart Jan Ravoo, Frank Glorius
Photocatalysis in the Dark: Near-Infrared Light Driven Photoredox Catalysis by an Upconversion Nanoparticle/Photocatalyst System [Communication]
ChemPhotoChem 2019, vol. 3, no. 1, p. 24

Biwei Xiao, Teófilo Rojo, Xiaolin Li
Hard Carbon as Sodium-Ion Battery Anodes: Progress and Challenges [Minireview]
ChemSusChem 2019, vol. 12, no. 1, p. 133

Didier Astruc
Why is Ferrocene so Exceptional? [Microreview]
Eur. J. Inorg. Chem. 2017, p. 6

Kennedy J. Ngwira, Jonas Kühlborn, Quintino A. Mgani, Charles B. de Koning, Till Opatz
Front Cover: Valorisation of Cashew Nut Shell Liquid Phenolics in the Synthesis of UV Absorbers (Eur. J. Org. Chem. 30/2019) [Cover Picture]
Eur. J. Org. Chem. 2019, p. 4763

Cover Picture Lebensmittelchemie 4/2019 [Cover Picture]
Lebensmittelchemie 2019, vol. 73, no. 4

Olaf Deutschmann, Roland Dittmeyer, Jan-Dierk Grunwaldt, Gunther Kolb, Stefan Löbbecke, Gregor D. Wehinger
Technische Chemie [Wissenschaft + Forschung]
Nachr. Chem. 2019, vol. 67, no. 6, p. 50

Titelbild: (CHEMKON 5/2019) [Titelbild]
CHEMKON 2019, vol. 26, no. 5, p. 173

Zheng Ma, Douglas R. MacFarlane, Mega Kar
Mg Cathode Materials and Electrolytes for Rechargeable Mg Batteries: A Review [Minireview]
Batteries & Supercaps 2019, vol. 2, no. 2, p. 115

Catharina Goedecke
Why Does Iodine Turn Starch Blue?
ChemViews Magazine 2016

Most cited articles from each ChemPubSoc Europe, ACES, and GDCh journal


2017

 


Eric J. Popczun, Carlos G. Read, Christopher W. Roske, Nathan S. Lewis, Raymond E. Schaak
Highly Active Electrocatalysis of the Hydrogen Evolution Reaction by Cobalt Phosphide Nanoparticles
Angew. Chem. Int. Ed. 2014, vol. 53, pp. 5427–5430

Philippe Compain, Anne Bodlenner
The Multivalent Effect in Glycosidase Inhibition: A New, Rapidly Emerging Topic in Glycoscience [Minireview]
ChemBioChem 2014, vol. 15, pp. 1239–1251

Zhi-Yuan Gu, Jihye Park, Aaron Raiff, Zhangwen Wei, Hong-Cai Zhou
Metal–Organic Frameworks as Biomimetic Catalysts [Minireview]
ChemCatChem 2014, vol. 6, pp. 67–75

Anthony J. Arduengo, Roland Krafczyk
Auf der Suche nach Stabilen Carbenen [Organische Chemie]
Chem. Unserer Zeit 1998, vol. 32, pp. 6–14

Félix Sancenón, Lluís Pascual, Mar Oroval, Elena Aznar, Ramón Martínez-Máñez
Gated Silica Mesoporous Materials in Sensing Applications [Review]
ChemistryOpen 2015, vol. 4, pp. 418–437

Jun Pu, Tingting Wang, Haiyang Wang, Yao Tong, Chenchen Lu, Wei Kong, Zhenghua Wang
Direct Growth of NiCo2S4 Nanotube Arrays on Nickel Foam as High-Performance Binder-Free Electrodes for Supercapacitors [Full Paper]
ChemPlusChem 2014, vol. 79, pp. 577–583

Francisco Trespalacios, Ignacio E. Grossmann
Review of Mixed-Integer Nonlinear and Generalized Disjunctive Programming Methods [Review]
Chemie Ingenieur Technik 2014, vol. 86, pp. 991–1012

Xiaosi Zhou, Yu-Guo Guo
Highly Disordered Carbon as a Superior Anode Material for Room-Temperature Sodium-Ion Batteries [Communication]
ChemElectroChem 2014, vol. 1, pp. 83–86

Chuanxi Wang, Zhenzhu Xu, Chi Zhang
Polyethyleneimine-Functionalized Fluorescent Carbon Dots: Water Stability, pH Sensing, and Cellular Imaging [Full Paper]
ChemNanoMat 2015, vol. 1, pp. 122–127

Matthew N. Hopkinson, Basudev Sahoo, Jun-Long Li, Frank Glorius
Dual Catalysis Sees the Light: Combining Photoredox with Organo-, Acid, and Transition-Metal Catalysis [Minireview]
Chemistry – A European Journal 2014, vol. 20, pp. 3874–3886

Yinuo Wu, Jun Wang, Fei Mao, Fuk Yee Kwong
Palladium-Catalyzed Cross-Dehydrogenative Functionalization of C(sp2)–H Bonds [Focus Review]
Chemistry – An Asian Journal 2014, vol. 9, pp. 26–47

Derong Cao, Herbert Meier
Pillar[n]arenes—a Novel, Highly Promising Class of Macrocyclic Host Molecules [Focus Review]
Asian Journal of Organic Chemistry 2014, vol. 3, pp. 244–262

Daniel Gallenkamp, Kathy A. Gelato, Bernard Haendler, Hilmar Weinmann
Bromodomains and Their Pharmacological Inhibitors [Review]
ChemMedChem 2014, vol. 9, pp. 438–464

Antonio Bauzá, Tiddo J. Mooibroek, Antonio Frontera
The Bright Future of Unconventional σ/π-Hole Interactions [Review]
ChemPhysChem 2015, vol. 16, pp. 2496–2517

Ksenia S. Egorova, Valentine P. Ananikov
Toxicity of Ionic Liquids: Eco(cyto)activity as Complicated, but Unavoidable Parameter for Task-Specific Optimization [Review]
ChemSusChem 2014, vol. 7, pp. 336–360

Shunichi Fukuzumi, Dachao Hong
Homogeneous versus Heterogeneous Catalysts in Water Oxidation [Microreview]
Eur. J. Inorg. Chem. 2014, pp. 645–659

Fabien Toulgoat, Sébastien Alazet, Thierry Billard
Direct Trifluoromethylthiolation Reactions: The “Renaissance” of an Old Concept [Microreview]
Eur. J. Org. Chem. 2014, pp. 2415–2428

David Schweinfurth, Naina Deibel, Fritz Weisser, Biprajit Sarkar
Mit Klick zu neuen Liganden [Magazin]
Nachr. Chem. 2011, vol. 59, pp. 937–941

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