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180.179 Aktuelle Fachpublikationen von American Chemical Society Publications

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Mechanism and Structure of γ-Resorcylate Decarboxylase

19.01.2018 | Xiang Sheng; Yury Patskovsky; Anna Vladimirova; Jeffrey B. Bonanno; Steven C. Almo; Fahmi Himo; Frank M. Raushel, Biochemistry, 2018

γ-Resorcylate decarboxylase (γ-RSD) has evolved to catalyze the reversible decarboxylation of 2,6-dihydroxybenzoate to resorcinol in a nonoxidative fashion. This enzyme is of significant interest because of its potential for the production of γ-resorcylate and other benzoic acid derivatives under ...

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Electronic Band Structure Engineering and Enhanced Thermoelectric Transport Properties in Pb-Doped BiCuOS Oxysulfide

19.01.2018 | Jean-Baptiste Labégorre; Rabih Al Rahal Al Orabi; Agathe Virfeu; Jacinthe Gamon; Philippe Barboux; Lauriane Pautrot- ..., Chemistry of Materials, 2018

In this paper, Bi1–xPbxCuOS samples (0 ≤ x ≤ 0.05) have been synthesized with a simple and scalable ball-milling process, followed by a reactive Spark Plasma Sintering. Our results highlight that, Pb for Bi substitution increases the charge carriers concentration by more than 2 orders of ...

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Traceless Silylation of β-C(sp3)–H Bonds of Alcohols via Perfluorinated Acetals

19.01.2018 | Ala Bunescu; Trevor W. Butcher; John F. Hartwig, Journal of the American Chemical Society, 2018

We report the silylation of primary C–H bonds located β to secondary and tertiary alcohols by exploiting perfluorinated esters as traceless directing groups. The conversion of a secondary or tertiary alcohol to a perfluoroalkyl ester and conversion of the ester to the corresponding silyl acetals ...

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A Negative Allosteric Modulator of WNT Receptor Frizzled 4 Switches into an Allosteric Agonist

19.01.2018 | Gennaro Riccio; Sara Bottone; Giuseppe La Regina; Nadia Badolati; Sara Passacantilli; Giovanni Battista Rossi; Anton ..., Biochemistry, 2018

The WNT pathway interconnects a network of signaling events involved in a huge plethora of cellular processes, from organogenesis to tissue homeostasis. Despite its importance, the exiguity of organic drugs directly targeting the members of the Frizzled family of WNT receptors has hampered ...

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Coupled Triboelectric Nanogenerator Networks for Efficient Water Wave Energy Harvesting

19.01.2018 | Liang Xu; Tao Jiang; Pei Lin; Jia Jia Shao; Chuan He; Wei Zhong; Xiang Yu Chen; Zhong Lin Wang, ACS Nano, 2018

Water wave energy is a promising clean energy source, which is abundant but hard to scavenge economically. Triboelectric nanogenerator (TENG) networks provide an effective approach toward massive harvesting of water wave energy in oceans. In this work, a coupling design in TENG networks for such ...

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Uniform Polyselenophene Block Copolymer Fiberlike Micelles and Block Co-micelles via Living Crystallization-Driven Self-Assembly

19.01.2018 | Emily L. Kynaston; Ali Nazemi; Liam R. MacFarlane; George R. Whittell; Charl F. J. Faul; Ian Manners, Macromolecules, 2018

We report the formation of near uniform block copolymer fiberlike micelles of controlled length with a crystalline polyselenophene core via the seeded growth process termed living crystallization-driven self-assembly (CDSA). Poly(3-decylselenophene)-block-poly(dimethylsiloxane) (P3DSe-b-PDMS) ...

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Total Synthesis of (−)-Xestosaprol N and O

19.01.2018 | Yingbo Shi; Yang Ji; Kunyun Xin; Shuanhu Gao, Organic Letters, 2018

Organic Letters DOI: 10.1021/acs.orglett.7b03865

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Can Supported Reduced Vanadium Oxides form H2 from CH3OH? A Computational Gas-Phase Mechanistic Study

19.01.2018 | Patricio González-Navarrete; Juan Andrés; Monica Calatayud, Journal of Physical Chemistry A, 2018

A detailed density functional theory study is presented to clarify the mechanistic aspects of the methanol (CH3OH) dehydrogenation process to yield hydrogen (H2) and formaldehyde (CH2O). A gas-phase vanadium oxide cluster is used as a model system to represent reduced V(III) oxides supported on ...

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Carbon Nanotube Web with Carboxylated Polythiophene “Assist” for High-Performance Battery Electrodes

19.01.2018 | Yo Han Kwon; Jung Jin Park; Lisa M. Housel; Krysten Minnici; Guoyan Zhang; Sujin R. Lee; Seung Woo Lee; Zhongming Ch ..., ACS Nano, 2018

A carbon nanotube (CNT) web electrode comprising magnetite spheres and few-walled carbon nanotubes (FWNTs) linked by the carboxylated conjugated polymer, poly[3-(potassium-4-butanoate) thiophene] (PPBT), was designed to demonstrate benefits derived from the rational consideration of electron/ion ...

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Anthocyanin Management in Fruits by Fertilization

19.01.2018 | Mareike Jezek; Christian Zörb; Nikolaus Merkt; Christoph-Martin Geilfus, Journal of Agricultural and Food Chemistry, 2018

Anthocyanins are water-soluble vacuolar plant pigments that are mainly synthesized in epidermal layers and the flesh of fruits such as apples, cherries, grapes, and other berries. Because of their attractive red to purple coloration and their health-promoting potential, anthocyanins are ...

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