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TABLE OF CONTENTS
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June 2017 Volume 9, Issue 6 |
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| Thesis News and Views Articles In Your Element | |
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Thesis | Top |
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It figures pp501 - 502 Michelle Francl doi:10.1038/nchem.2788 Using a slide rule showed Michelle Francl where chemists' calculations are still stuck in the past. |
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News and Views | Top |
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npj Clean Water: open for submissions
An open access, online-only journal, dedicated to publishing high-quality papers that describe the significant and cutting-edge research that continues to ensure the supply of clean water to populations.
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Articles | Top |
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Programming molecular self-assembly of intrinsically disordered proteins containing sequences of low complexity pp509 - 515 Joseph R. Simon, Nick J. Carroll, Michael Rubinstein, Ashutosh Chilkoti and Gabriel P. López doi:10.1038/nchem.2715
A programmable model of membraneless organelles comprised of intrinsically disordered proteins (IDPs) containing sequences of low complexity has now been developed. The rules governing the assembly of archetypal IDPs into biologically inspired mixed, layered and size-controlled configurations provides a new means for understanding intracellular phase behaviour of IDPs. |
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Coherent ultrafast lattice-directed reaction dynamics of triiodide anion photodissociation pp516 - 522 Rui Xian, Gastón Corthey, David M. Rogers, Carole A. Morrison, Valentyn I. Prokhorenko et al. doi:10.1038/nchem.2751
Dissociative reactions in the solid state are prone to sample damage. Now, improved sample handling and measurement conditions enable the study of the dissociative reaction of a model triatomic system in the solid state on ultrafast timescales, revealing the significant impact of lattice coordination on the reaction pathway.
See also: News and Views by Cerullo & Garavelli |
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Reactions of hexadehydro-Diels–Alder benzynes with structurally complex multifunctional natural products pp523 - 530 Sean P. Ross and Thomas R. Hoye doi:10.1038/nchem.2732
The development of methods for the site-selective modification of natural products is a topic of contemporary investigation and importance. Now, it has been shown that benzynes produced by the hexadehydro-Diels–Alder (HDDA) reaction react with many secondary metabolites, with a substantial preference for one of several potential pathways. Chemical compounds See also: News and Views by Tasker & Hergenrother |
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Monitoring interconversion between stereochemical states in single chirality-transfer complexes on a platinum surface pp531 - 536 Guillaume Goubert, Yi Dong, Michael N. Groves, J.-C. Lemay, Bjørk Hammer et al. doi:10.1038/nchem.2753
A chiral molecule on a metal surface can set up a prochiral molecule for an enantioselective reaction step by forming a hydrogen-bonded complex that imposes a specific adsorption geometry. Time-lapsed scanning tunnelling microscopy and density functional theory studies reveal that such complexes can sometimes switch between states of opposing prochirality.
See also: News and Views by Tysoe |
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Engineering live cell surfaces with functional polymers via cytocompatible controlled radical polymerization pp537 - 545 Jia Niu, David J. Lunn, Anusha Pusuluri, Justin I. Yoo, Michelle A. O'Malley et al. doi:10.1038/nchem.2713
A cytocompatible controlled radical polymerization method has now been developed that initiates polymer synthesis directly on the surface of living cells. This method achieves significantly enhanced polymer grafting and enables active manipulation of cellular phenotypes. |
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Asymmetric silver-catalysed intermolecular bromotrifluoromethoxylation of alkenes with a new trifluoromethoxylation reagent pp546 - 551 Shuo Guo, Fei Cong, Rui Guo, Liang Wang and Pingping Tang doi:10.1038/nchem.2711
The first example of an asymmetric silver-catalysed intermolecular bromotrifluoromethoxylation of alkenes has been described with trifluoromethyl aryl sulfonate as a new trifluoromethoxylation reagent. This reaction is operationally simple, scalable and proceeds under mild reaction conditions, which can be applied to the late-stage trifluoromethoxylation of complex small molecules. Chemical compounds |
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Structural and functional synthetic model of mono-iron hydrogenase featuring an anthracene scaffold pp552 - 557 Junhyeok Seo, Taylor A. Manes and Michael J. Rose doi:10.1038/nchem.2707
Mono-iron hydrogenase promotes the heterolytic cleavage of H2 and subsequent hydride transfer to its organic substrate, H4MPT+, which serves as a CO2 ‘carrier’ in methanogenic pathways. Now, using an anthracene-scaffold-based approach, a synthetic model featuring enzyme-like Fe-C,N,S facial coordination has been developed. The model complex enables the bidirectional activity of H2 activation and evolution. Chemical compounds |
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Catalytic enantioselective synthesis of atropisomeric biaryls by a cation-directed O-alkylation pp558 - 562 John D. Jolliffe, Roly J. Armstrong and Martin D. Smith doi:10.1038/nchem.2710
A chiral ammonium salt mediates a dynamic kinetic resolution of racemic α-aryl ketones by atropselective O-alkylation. Oxidation with DDQ gives access to C2-symmetric and non-symmetric BINOL derivatives in high yields and with high enantioselectivity. Chemical compounds |
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A two-dimensional conjugated aromatic polymer via C–C coupling reaction pp563 - 570 Wei Liu, Xin Luo, Yang Bao, Yan Peng Liu, Guo-Hong Ning et al. doi:10.1038/nchem.2696
The synthesis of well-defined planar polymers presents a significant challenge for chemists seeking to investigate their potential for use in emerging technologies. Now, a two-dimensional conjugated aromatic polymer has been synthesized via endogenous solid-state polymerization of pre-arranged monomers, and its performance as an organic anode in an ambient temperature sodium cell tested. |
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Unique physicochemical and catalytic properties dictated by the B3NO2 ring system pp571 - 577 Hidetoshi Noda, Makoto Furutachi, Yasuko Asada, Masakatsu Shibasaki and Naoya Kumagai doi:10.1038/nchem.2708
Amidation is one of the most widely utilized organic reactions for the synthesis of pharmaceuticals and functional materials. DATB, characterized by the B3NO2 heterocycle, proved to act as a superb catalyst for the direct amidation with a distinct mechanistic pathway, displaying broadened applicability to a wide range of substrates. Chemical compounds |
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Actinide covalency measured by pulsed electron paramagnetic resonance spectroscopy pp578 - 583 Alasdair Formanuik, Ana-Maria Ariciu, Fabrizio Ortu, Reece Beekmeyer, Andrew Kerridge et al. doi:10.1038/nchem.2692
Covalency in actinide–ligand bonding is poorly understood compared to that in other parts of the periodic table due to the lack of experimental data. Here, pulsed electron paramagnetic resonance methods are used to directly measure the electron spin densities at coordinated ligands in molecular thorium and uranium complexes. |
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Prebiotic selection and assembly of proteinogenic amino acids and natural nucleotides from complex mixtures pp584 - 589 Saidul Islam, Dejan-Kreimir Bucar and Matthew W. Powner doi:10.1038/nchem.2703
2-aminothiazole — a hybrid of prebiotic amino acid and nucleotide precursors — sequentially accumulates and purifies glycolaldehyde and glyceraldehyde from complex mixtures in the order required for ribonucleotide synthesis, dynamically resolves glyceraldehyde from its ketose-isomer dihydroxyacetone, and provides the first strategy to select natural amino acids from abiotic aldehydes and ketones. Chemical compounds |
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Switchable regioselectivity in amine-catalysed asymmetric cycloadditions pp590 - 594 Zhi Zhou, Zhou-Xiang Wang, Yuan-Chun Zhou, Wei Xiao, Qin Ouyang et al. doi:10.1038/nchem.2698
The construction of diversified compound libraries from identical substrates is attractive but remains a challenge in asymmetric synthesis. Here, we demonstrate switchable regioselective [6+2], [4+2] or [2+2] cycloadditions with α′-alkylidene-2-cyclopentenones via mild aminocatalysis, producing a spectrum of chiral frameworks with high structural diversity and molecular complexity. Chemical compounds |
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Activation and discovery of earth-abundant metal catalysts using sodium tert-butoxide pp595 - 600 Jamie H. Docherty, Jingying Peng, Andrew P. Dominey and Stephen P. Thomas doi:10.1038/nchem.2697
NaOtBu — an alkoxide salt — enables simple access to low-oxidation-state catalysis using sustainable first-row transition metals (Fe, Co, Mn, Ni). The approach works across a wide range of reductive alkene and alkyne functionlization reactions including hydroboration, hydrosilylation, hydrogenation, hydrovinylation and [2π+2π] cyclization reactions. Chemical compounds |
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An open access, online-only, multidisciplinary research journal dedicated to publishing the most important scientific advances in the life sciences, physical sciences, and engineering fields that are facilitated by spaceflight and analogue platforms.
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In Your Element | Top |
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V for vanadium p602 Andrea Taroni doi:10.1038/nchem.2787 Andrea Taroni shares his experience with vanadium — a colourful element with a rich chemistry (and physics!) that is emblematic of all transition metals. |
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