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Journal of the Science of Food and Agriculture

Effect of shading intensity on morphological and color traits and on chemical components of new tea ( Camellia sinensis L.) shoots under direct covering cultivation

Published: 22 June 2018

Author(s): Tomohito Sano, Hideki Horie, Akiko Matsunaga, Yuhei Hirono

Abstract BACKGROUND Use of covering cultivation to shade tea (Camellia sinensis L.) trees to produce high‐quality, high‐priced green tea has recently increased in Japan. Knowledge of shading effects on morphological and color traits and on chemical components of new tea shoots is important for product quality and productivity. We assessed these traits of tea shoots and their relationships under covering cultivation...

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Journal of Mass Spectrometry

Rapid and noninvasive quality control of anhydrous milk fat by PTR‐MS: The effect of storage time and packaging

Published: 22 June 2018

Author(s): M. Pedrotti, I. Khomenko, L. Cappellin, M. Fontana, M. Somenzi, L. Falchero, M. Arveda, V. Fogliano, F. Biasioli

Abstract In this study, proton transfer reaction‐mass spectrometry (PTR‐MS), coupled with a time‐of‐flight mass analyzer and a multipurpose automatic sampler, was evaluated as a rapid and nondestructive tool for the quality control of anhydrous milk fat. Anhydrous milk fats packed in cardboard and bag‐in‐box were compared during refrigerated shelf life at 4°C for 9 months. Anhydrous milk fat samples were taken at 120, 180, and...

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Advanced Synthesis & Catalysis

P‐Stereogenic PN(H)P Iron(II) Catalysts for the Asymmetric Hydrogenation of Ketones: The Importance of Non‐Covalent Interactions in Rational Ligand Design by Computation

Published: 22 June 2018

Author(s): Raffael Huber, Alessandro Passera, Erik Gubler, Antonio Mezzetti

Abstract The P‐stereogenic PN(H)P pincer ligands (R(Me)PCH2CH2)2NH (R=Cy, (S,S)‐1 a; R=tBu, (S,S)‐1 b; R=Ph, (R,R)‐1 c) and their iron(II) derivatives [FeBr2(CO)(PN(H)P)] (2 a–2 c) and [FeHBr(CO)(PN(H)P)] (3 a–3 c) were developed by DFT‐driven ligand design. In a preliminary study, the P(Cy)Me‐based pincer (S,S)‐1 a and its Fe(II) complex 3 a were prepared, tested in the asymmetric transfer hydrogenation of acetophenone, and studied by Density Functional Theory ...

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Advanced Synthesis & Catalysis

Gold(I)/Chiral Rh(III) Lewis Acid Relay Catalysis Enables Asymmetric Synthesis of Spiroketals and Spiroaminals

Published: 22 June 2018

Author(s): Jun Gong, Qian Wan, Qiang Kang

Abstract An efficient asymmetric cascade reaction of keto esters with alkynyl alcohols and amides was catalyzed by the combination of achiral gold(I) catalysis and chiral Rh(III) Lewis acid catalysis as asymmetric relay catalysis. The corresponding spiroketals and spiroaminals were synthesized in good yields (up to 99%), with good diastereoselectivity (up to 20:1 dr) and excellent enantioselectivity (up to 98% ee). ...

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Advanced Synthesis & Catalysis

Immobilization of cis ‐4‐Hydroxydiphenylprolinol Silyl Ethers onto Polystyrene. Application in the Catalytic Enantioselective Synthesis of 5‐Hydroxyisoxazolidines in Batch and Flow

Published: 22 June 2018

Author(s): Junshan Lai, Sonia Sayalero, Alessandro Ferrali, Laura Osorio‐Planes, Fernando Bravo, Carles Rodríguez‐Escrich, Miquel A. Pericàs

Abstract A new family of polystyrene‐supported cis‐4‐hydroxydiphenylprolinol silyl ethers has been prepared, and the resulting polymers have been evaluated as organocatalysts to promote the tandem reaction between N‐protected hydroxylamines and α,β‐unsaturated aldehydes in batch and flow. The new PS‐supported catalysts compare favorably with well‐established immobilized Jørgensen‐Hayashi catalysts, affording 5‐hydroxyisoxazolidines as single...

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European Journal of Inorganic Chemistry

Carba‐ closo ‐dodecaborates – Synthesis, Structure, and Energetics

Published: 22 June 2018

Author(s): Alexander Hepp, René Labbow, Fabian Reiß, Axel Schulz, Alexander Villinger

A full set of analytical data of salts (e.g., Me3NH+, Cs+, Ag+) bearing nido‐[B11H14]–, closo‐[CHB11H11]–, and chlorinated congener [CHB11Cl11]– is reported. Structures and energetics of [CHB11H11–nXn]– and [B12XmH12–m]2– (n = 5, 11; m = 0, 12; X = halogen, CH3, CF3) and their protonated and silylated forms are studied. A direct correlation between theoretical calculated NICS values, gas‐phase acidities, and experimentally determined 13C NMR shifts is...

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European Journal of Inorganic Chemistry

Soot Oxidation over CeO 2 or Ag/CeO 2 : Influences of Bulk Oxygen Vacancies and Surface Oxygen Vacancies on Activity and Stability of the Catalyst

Published: 22 June 2018

Author(s): Shijie Wu, Yu Yang, Chunxiang Lu, Yuanyuan Ma, Shuxia Yuan, Guangren Qian

Three types of CeO2 were synthesized and through impregnation of Ag employing these CeO2 types as supports, three kinds of Ag/CeO2 were prepared. Their morphologies and structures were characterized by SEM, HRTEM, nitrogen adsorption–desorption isotherms, and H2‐TPR reduction, indicating that the effective soot‐catalyst contact and size distribution as well as the chemical state of Ag were identical. Surface oxygen vacancies (VO–s) and bulk oxygen...

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European Journal of Inorganic Chemistry

Irreversible Magnetic Behaviour Caused by the Thermosalient Phenomenon in an Iron(III) Spin Crossover Complex

Published: 22 June 2018

Author(s): Frederico F. Martins, Abhinav Joseph, Hermínio P. Diogo, Manuel E. Minas da Piedade, Liliana P. Ferreira, Maria Deus Carvalho, Sónia Barroso, Maria João Romão, Maria José Calhorda, Paulo N. Martinho

The new iron(III) complex [Fe(5‐I‐salEen)2]ClO4 exhibits both spin crossover, with hysteresis, between 304 K and 320 K (16 K hysteresis loop), and thermosalient phenomena. After a symmetry‐breaking phase transition between 120 and 130 K, confirmed by single‐crystal X‐ray diffraction, and the fragmentation of the crystals around 312 K, confirmed by differential scanning calorimetry and hot stage microscopy, the hysteresis loop disappears....

thumbnail image: European Journal of Inorganic Chemistry

European Journal of Inorganic Chemistry

Straightforward Synthesis of L‐PEI‐Coated Gold Nanoparticles and Their Biological Evaluation

Published: 22 June 2018

Author(s): Mathilde Bouché, Sylvie Fournel, Antoine Kichler, Tamilselvi Selvam, Jean‐Louis Gallani, Stéphane Bellemin‐Laponnaz

Functionalized gold nanoparticles receive much attention for biomedical applications thanks to their improved in vivo circulation time and colloidal stability. This work aimed at developing a simple and efficient synthetic route for synthesizing nanoparticles coated with linear polyethyleneimine for use as non‐toxic platforms in non‐viral gene delivery. We show that the reproducible one‐pot synthesis of gold nanoparticles stabilized with...

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European Journal of Inorganic Chemistry

Dinuclear Vanadium Sulfide Clusters: Synthesis, Redox Behavior, and Magnetic Properties

Published: 22 June 2018

Author(s): Iakov S. Fomenko, Artem L. Gushchin, Vladimir A. Nadolinny, Nikolay N. Efimov, Yuliya A. Laricheva, Maxim N. Sokolov

The complex [V2S4(nBu2dtc)4] (1) (dtc = dithiocarbamate) was prepared by a self‐assembly reaction from [VO(nBu2dtc)3] and H2S. 1H, 13C, and 51V NMR spectra indicate the presence in solution of two isomers (centrosymmetric and non‐centrosymmetric) with different relative orientations of the dithiocarbamate chelate rings. Thermogravimetric studies of 1 show that the thermolysis products are VS2 (in He) or VS (in H2). The cyclic voltammogram (CV) in dichloromethane...

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

March 2018

 


Zhang Luo, Bing Liu
Shape-Tunable Colloids from Structured Liquid Droplet Templates [Cover Picture]
Angew. Chem. Int. Ed. 10.1002/anie.201802726

Coline Jumeaux, Olov Wahlsten, Stephan Block, Eunjung Kim, Rona Chandrawati, Philip D. Howes, Fredrik Höök, Molly M. Stevens
MicroRNA Detection by DNA-Mediated Liposome Fusion [Communication]
ChemBioChem 2018, vol. 19, p. 434

Isabela C. Man, Hai-Yan Su, Federico Calle-Vallejo, Heine A. Hansen, José I. Martínez, Nilay G. Inoglu, John Kitchin, Thomas F. Jaramillo, Jens K. Nørskov, Jan Rossmeisl
Universality in Oxygen Evolution Electrocatalysis on Oxide Surfaces [Full Paper]
ChemCatChem 2011, vol. 3, p. 1159

Matthias Schäfer, Bernhard Hauck, Jochen Kuhn, Roland Ulber
Analytik mit Licht - Das Smartphone-Photometer [Artikel]
Chem. Unserer Zeit 2018, vol. 52, p. 52

Balaram Mukhopadhyay, Rituparna Das
Chemical O-Glycosylations: An Overview [Review]
ChemistryOpen 2016, vol. 5, p. 401

Hanshen Xin, Xike Gao
Application of Azulene in Constructing Organic Optoelectronic Materials: New Tricks for an Old Dog [Minireview]
ChemPlusChem 2017, vol. 82, 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, p. 6055

Hubert Rauscher, Kirsten Rasmussen, Birgit Sokull-Klüttgen
Regulatory Aspects of Nanomaterials in the EU [Research Article]
Chem. Ing. Tech. 2017, vol. 89, p. 224

Abas Mohsenzadeh, Akram Zamani, Mohammad J. Taherzadeh
Bioethylene Production from Ethanol: A Review and Techno-economical Evaluation [Review]
ChemBioEng Rev. 2017, vol. 4, p. 75

Robert A. W. Dryfe, Briony Setterfield-Price, Joanne Tory, František Hartl
[M(CO)4(2,2'-bipyridine)] (M=Cr, Mo, W) Complexes as Efficient Catalysts for Electrochemical Reduction of CO2 at a Gold Electrode [Communication]
ChemElectroChem 2015, vol. 2, p. 213

Yinghui Xue, Qin Zhang, Tao Zhang, Lei Fu
Black Phosphorus: Properties, Synthesis, and Applications in Energy Conversion and Storage [Focus Review]
ChemNanoMat 2017, vol. 3, p. 352

Maximilian Koy, Frederik Sandfort, Adrian Tlahuext-Aca, Linda Quach, Constantin G. Daniliuc, Frank Glorius
Palladium-Catalyzed Decarboxylative Heck-Type Coupling of Activated Aliphatic Carboxylic Acids Enabled by Visible Light [Communication]
Chem. Eur. J. 2018, vol. 24, p. 4552

Jian Lv, Qi Zhang, Mao Cai, Yanfang Han, Sanzhong Luo
Aromatic Aminocatalysis [Focus Review]
Chem. Asian J. 2018, vol. 13, p. 740

Hidetoshi Noda, Naoya Kumagai, Masakatsu Shibasaki
Abstract [Focus Review]
Asian J. Org. Chem. 10.1002/ajoc.201800013

Albert J. Kooistra, Márton Vass, Ross McGuire, Rob Leurs, Iwan J. P. de Esch, Gert Vriend, Stefan Verhoeven, Chris de Graaf
3D-e-Chem: Structural Cheminformatics Workflows for Computer-Aided Drug Discovery [Full Paper]
ChemMedChem 2018, vol. 13, p. 614

Zhoufeng Bian, Sonali Das, Ming Hui Wai, Plaifa Hongmanorom, Sibudjing Kawi
A Review on Bimetallic Nickel-Based Catalysts for CO2 Reforming of Methane [Review]
ChemPhysChem 2017, vol. 18, p. 3117

Turkan Gamze Ulusoy Ghobadi, Amir Ghobadi, Ekmel Ozbay, Ferdi Karadas
Strategies for Plasmonic Hot-Electron-Driven Photoelectrochemical Water Splitting [Review]
ChemPhotoChem 2018, vol. 2, p. 161

An-Na Cho, Nam-Gyu Park
Impact of Interfacial Layers in Perovskite Solar Cells [Review]
ChemSusChem 2017, vol. 10, p. 3687

Jeffrey A. Rood, Sondra E. Hinman, Bruce C. Noll, Kenneth W. Henderson
The Use of Halide-Substituted Anilines for the Formation of Magnesium Imides [Full Paper]
Eur. J. Inorg. Chem. 2008, p. 3935

D. B. Ramachary [Author Profile]
Eur. J. Org. Chem. 10.1002/ejoc.201800182

46. Deutscher Lebensmittelchemikertag 2017 in Würzburg [Tagung]
Lebensmittelchemie 2018, vol. 72, p. 1

Peter Chen
Chemistry 4.0 [Leitartikel]
Nachr. Chem. 2018, vol. 66, p. 203

Ira Caspari, Gisela Weber-Peukert, Nicole Graulich
Der Einsatz von Modellen zum Erkenntnisgewinn / Eine Unterrichtseinheit zur Förderung der Modellkompetenz im Kontext „Batterie“ unter explizitem Einbezug von Schülervorstellungen [Aus der Schule]
CHEMKON 2018, vol. 25, p. 23

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

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


2016

 


Shoujun Zhu, Qingnan Meng, Lei Wang, Junhu Zhang, Yubin Song, Han Jin, Kai Zhang, Hongchen Sun, Haiyu Wang, Bai Yang
Highly Photoluminescent Carbon Dots for Multicolor Patterning, Sensors, and Bioimaging
Angew. Chem. Int. Ed. 2013, vol. 52, pp. 3953–3957

Balayeshwanth R. Vummidi, Jawad Alzeer, Nathan W. Luedtke
Fluorescent Probes for G-Quadruplex Structures [Review]
ChemBioChem 2013, vol. 14, pp. 540–558

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

Marc Steinmetz, Stefan Grimme
Benchmark Study of the Performance of Density Functional Theory for Bond Activations with (Ni,Pd)-Based Transition-Metal Catalysts [Full Paper]
ChemistryOpen 2013, vol. 2, pp. 115–124

Philipp Scharf, Jens Müller
Nucleic Acids With Metal-Mediated Base Pairs and Their Applications [Review]
ChemPlusChem 2013, vol. 78, pp. 20–34

Philipp Kaiser, Rajabhau?Bajirao Unde, Christoph Kern, Andreas Jess
Production of Liquid Hydrocarbons with CO2 as Carbon Source based on Reverse Water-Gas Shift and Fischer-Tropsch Synthesis [Research Article]
Chem. Ing. Tech. 2013, vol. 85, pp. 489–499

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

Konggang Qu, Jiasi Wang, Jinsong Ren, Xiaogang Qu
Carbon Dots Prepared by Hydrothermal Treatment of Dopamine as an Effective Fluorescent Sensing Platform for the Label-Free Detection of Iron(III) Ions and Dopamine [Full Paper]
Chem. Eur. J. 2013, vol. 19, pp. 7243–7249

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

Naohiko Yoshikai, Ye Wei
Synthesis of Pyrroles, Indoles, and Carbazoles through Transition-Metal-Catalyzed C–H Functionalization [Review]
Asian J. Org. Chem. 2013, vol. 2, pp. 466–478

Lluís Ballell, Robert H. Bates, Rob J. Young, Daniel Alvarez-Gomez, Emilio Alvarez-Ruiz, Vanessa Barroso, Delia Blanco, Benigno Crespo, Jaime Escribano, Rubén González, Sonia Lozano, Sophie Huss, Angel Santos-Villarejo, José Julio Martín-Plaza, Alfonso Mendoza, María José Rebollo-Lopez, Modesto Remuiñan-Blanco, José Luis Lavandera, Esther Pérez-Herran, Francisco Javier Gamo-Benito, José Francisco García-Bustos, David Barros, Julia P. Castro, Nicholas Cammack
Fueling Open-Source Drug Discovery: 177 Small-Molecule Leads against Tuberculosis [Full Paper]
ChemMedChem 2013, vol. 8, pp. 313–321

Peter Politzer, Jane S. Murray
Halogen Bonding: An Interim Discussion [Review]
ChemPhysChem 2013, vol. 14, pp. 278–294

Volker Hessel, Dana Kralisch, Norbert Kockmann, Timothy Noël, Qi Wang
Novel Process Windows for Enabling, Accelerating, and Uplifting Flow Chemistry [Review]
ChemSusChem 2013, vol. 6, pp. 746–789

Helena J. Shepherd, Gábor Molnár, William Nicolazzi, Lionel Salmon, Azzedine Bousseksou
Spin Crossover at the Nanometre Scale [Microreview]
Eur. J. Inorg. Chem. 2013, pp. 653–661

Junichiro Yamaguchi, Kei Muto, Kenichiro Itami
Recent Progress in Nickel-Catalyzed Biaryl Coupling [Microreview]
Eur. J. Org. Chem. 2013, pp. 19–30

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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