Results 81 to 90 of about 129,275 (339)
Angewandte Chemie, EarlyView.Coordination of a Lewis base switches an electron‐accepting tricoordinate boron center into an electron‐donating tetracoordinate one. An alkenyl‐strapped diphenylthienylboryl π‐system undergoes phosphine‐induced reversible π‐umpolung, where transformation from an acceptor–acceptor–acceptor framework to a donor–acceptor–donor system gives rise to ...
Satoru Kitamura +2 more
wiley +2 more sources
بهداشت کار و ارتقای سلامت, 2019 Introduction: In most process units of refinery industries, staffs are exposed to various chemical agents. The purpose of this study was to identify the highest level of occupational exposure to Benzene, Toluene, Ethyl Benzene, Xylene compounds (BTEX)and
maghsoud ghasemi poor +1 more
doaj +2 more sources
Advanced Science, EarlyView.This study presents the unanticipated interfacial redox reaction between NiOx and perovskite, which is characterized by XPS. This redox reaction is one of the primary reasons for the bias‐induced instability of PeLEDs and is particularly suppressed by simply applying an interface layer between NiOx and perovskite.
Thi‐Hoai Do +4 more
wiley +1 more source
Open Notebook Science Challenge: Solubilities of Organic Compounds in Organic Solvents [PDF]
, 2010 This book contains the results of the Open Notebook Science Solubility Challenge. All experimental measurements are provided with a link to either the laboratory notebook page where the experiment was carried out or to a literature reference.
Andrew Lang +17 more
core +6 more sources
Angewandte Chemie, EarlyView.We report a dual chemical looping/catalytic process coupling alkane dehydrogenation with aromatic alkylation over Cu‐mordenite, yielding up to 25% alkylated aromatics with >95% selectivity per cycle. In situ NMR, FTIR spectroscopy, and DFT show alkylation proceeds via a π‐bound Cu(I)–olefin intermediate and Brønsted acid sites.
Florent J. Dubray +7 more
wiley +2 more sources
Ethyl 2-(4-chloro-3-methylphenoxy)acetate
IUCrData, 2016 In the title compound, C11H13ClO3, the pendant ethyl chain has an extended conformation and lies in the plane of the substituted benzene ring; the r.m.s. deviation of the 15 non-H atoms comprising the molecule is 0.002 Å.
Yasser Hussein Issa Mohammed +3 more
doaj +1 more source
Production of ethylbenzene by liquid-phase benzene alkylation [PDF]
, 2011 The work deals with optimization of the process of production of ethylbenzene by liquid-phase benzene alkylation. This process involves the reaction of benzene with ethylene to form ethylbenzene.
Sahoo, Prasanna Kumar
core
Chiral Modification of the Tetrakis(pentafluorophenyl)borate Anion with Myrtanyl Groups [PDF]
, 2019 The synthesis and characterization of chiral [B(C6F5)4]– derivatives bearing a myrtanyl group instead of a fluoro substituent in the para position are described.
Oestreich, Martin, Pommerening, Phillip
core +1 more source
Machine Learning for Green Solvents: Assessment, Selection and Substitution
Advanced Science, EarlyView.Environmental regulations have intensified demand for green solvents, but discovery is limited by Solvent Selection Guides (SSGs) that quantify solvent sustainability. Training a machine learning model on GlaxoSmithKline SSG, a database of sustainability metrics for 10,189 solvents, GreenSolventDB is developed. Integrated with Hansen solubility metrics,
Rohan Datta +4 more
wiley +1 more source
Angewandte Chemie, EarlyView.A modular two‐step strategy provides tetraaza[n]helicenes (n = 7–15) as a homologous series with tunable photophysical and chiroptical properties. Extension beyond n = 11 induces pronounced through‐space π–π interactions, narrowing the energy gap and amplifying circularly polarized luminescence.
Takashi Otani +6 more
wiley +2 more sources