Nature Chemistry Contents July 2016 Volume 8 Number 7 pp 635 - 732

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Advertisement Solve our challenge and win $200,000.  Identify novel small molecules that bind glucose and improve diabetes treatments. Visit our challenge here. TABLE OF CONTENTS July 2016 Volume 8, Issue 7 Editorial Thesis News and Views Review Articles In Your Element Subscribe   Facebook   RSS   Recommend to library   Twitter   Advertisement Nature Publishing Group offers a free open access funding support service to enable authors to discover and apply for article processing charge funding available to them. Visit our website for further advice on the funding options available, and guidance in approaching funders and institutions, or email openaccess@nature.com for more information.     Editorial Top Now we NO   p635 doi:10.1038/nchem.2562 Nitric oxide (NO) is an important signalling molecule in biological systems, but it is unclear exactly how it interacts with some metalloproteins. Now, a collection of articles in this issue reveal how NO binds to proteins containing type-1 copper sites. Thesis Top Strangers to fiction   pp636 - 637 Michelle Francl doi:10.1038/nchem.2560 Michelle Francl wonders if more chemists should be reading science fiction on the job. News and Views Top Carbon materials: MOF morphologies in control   pp638 - 639 Jing Tang and Yusuke Yamauchi doi:10.1038/nchem.2548 The calcination of metal-organic framework (MOF) precursors is promising for the preparation of nanoscale carbon materials, but the resulting morphologies have remained limited. Now, controlling the growth of precursor MOFs has enabled 1D carbon nanorods to be fabricated — these can then be readily unravelled into 2D graphene nanoribbons. See also: Article by Pachfule et al. Metalloproteins: A switch for blue copper proteins?   pp639 - 641 Subhra Samanta and Nicolai Lehnert doi:10.1038/nchem.2561 Nitric oxide (NO) has important functions in all forms of life and serves, for example, as a signalling molecule in mammals. Now, two complementary studies have uncovered how NO binds to blue copper proteins. This research suggests a mechanism by which NO could regulate the activity of blue copper proteins involved in denitrification. See also: Article by Zhang et al. | Article by Tian et al. Battery materials: Operating through oxygen   pp641 - 643 Claude Delmas doi:10.1038/nchem.2558 Combining conventional transition-metal oxidation with oxygen oxidation in 'lithium-excess' materials is a recently discovered route to improving the capacity of lithium-ion batteries. Now two studies, one experimental and one theoretical, have investigated the processes, states and structures involved. See also: Article by Seo et al. | Article by Luo et al. Heterocycle synthesis: Back in the ring   p643 Marshall Brennan doi:10.1038/nchem.2559 Chemistry JOBS of the week Postdoctoral Research Scientist Cancer Research UK Beatson Institute in Glasgow Head of Academic Therapy Development Accelerator University of Zurich Postdoctoral Fellow University of Missouri International Institute of Nano and Molecular Medicine Dean of the School of Basic Sciences Ecole Polytechnique Fédérale de Lausanne (EPFL) Research Technician Roskamp Institute More Science jobs from Chemistry EVENT International Conference on Medicinal and Pharmaceutical Chemistry 05.12.16 Dubai More science events from Review Top Dynamic molecular crystals with switchable physical properties   pp644 - 656 Osamu Sato doi:10.1038/nchem.2547 Numerous dynamic molecular crystals whose physical properties can be switched by external stimuli have recently been developed. This Review discusses how the precise control of the electron, proton and molecular movement within the crystals through the application of external stimuli can lead to considerable changes in their properties. Advertisement Nature Chemistry in the community Nature Chemistry is now on Facebook. Like our page to keep up to date with developments in the field and links to the latest research.     Articles Top Quasicrystallinity expressed in two-dimensional coordination networks   pp657 - 662 José I. Urgel, David Écija, Guoqing Lyu, Ran Zhang, Carlos-Andres Palma et al. doi:10.1038/nchem.2507 Quasicrystalline materials exhibit long-range order but no translational periodicity. Now, a random tiling quasicrystal has been fabricated on a Au(111) surface by coordination interactions between europium centres and linear dicarbonitrile linkers under stoichiometry control. The 2D metal–organic network exhibits the simultaneous presence of four-, five- and six-fold vertices and dodecagonal symmetry. A motif for reversible nitric oxide interactions in metalloenzymes   pp663 - 669 Shiyu Zhang, Marie M. Melzer, S. Nermin Sen, Nihan Çelebi-Ölçüm and Timothy H. Warren doi:10.1038/nchem.2502 NO participates in numerous physiological processes of which many involve the reaction of NO with metalloenzymes to form a metal–nitrosyl (M–NO). Now, addition of NO to models of type 1 Cu sites has provided a fully characterized S-nitrosothiol adduct, [CuI](κ1-N(O)SR), that reversibly loses NO upon purging with an inert gas. These findings suggest a new motif for reversible binding of nitric oxide at bioinorganic metal centres. Chemical compounds See also: News and Views by Samanta & Lehnert Reversible S-nitrosylation in an engineered azurin   pp670 - 677 Shiliang Tian, Jing Liu, Ryan E. Cowley, Parisa Hosseinzadeh, Nicholas M. Marshall et al. doi:10.1038/nchem.2489 S-Nitrosylation has emerged as an important pathway for dynamic post-translational regulation of many classes of proteins. Now, the reversible insertion of NO into a copper–thiolate bond has been observed under physiologically relevant conditions using an engineered azurin. DFT calculation indicates that the reaction proceeds via a radical combination mechanism. See also: News and Views by Samanta & Lehnert Imaging single-molecule reaction intermediates stabilized by surface dissipation and entropy   pp678 - 683 Alexander Riss, Alejandro Pérez Paz, Sebastian Wickenburg, Hsin-Zon Tsai, Dimas G. De Oteyza et al. doi:10.1038/nchem.2506 The single-bond-resolved chemical structures of transient intermediates in a complex bimolecular reaction cascade were imaged by noncontact atomic force microscopy. Theoretical simulations reveal that the kinetic stabilization of experimentally observable intermediates is governed by selective energy dissipation to the substrate and entropic changes along the reaction pathway. Chemical compounds Charge-compensation in 3d-transition-metal-oxide intercalation cathodes through the generation of localized electron holes on oxygen   pp684 - 691 Kun Luo, Matthew R. Roberts, Rong Hao, Niccoló Guerrini, David M. Pickup et al. doi:10.1038/nchem.2471 The energy that can be stored in lithium-ion batteries is typically limited by the redox chemistry of the transition metals within the cathodes. Now it is shown that for Li1.2[Ni2+0.13Co3+0.13Mn4+0.54]O2, a 3d-transition-metal oxide that breaks this limit, Li-ion extraction is charge compensated not just by transition-metal oxidation but also through the generation of localized electron-holes on oxygen. See also: News and Views by Delmas The structural and chemical origin of the oxygen redox activity in layered and cation-disordered Li-excess cathode materials   pp692 - 697 Dong-Hwa Seo, Jinhyuk Lee, Alexander Urban, Rahul Malik, ShinYoung Kang et al. doi:10.1038/nchem.2524 The chemistry of the transition metals within the oxide cathodes of lithium-ion batteries typically limits their capacity, however, reversible oxygen redox could potentially break this limit. It is now demonstrated that Li-excess and cation disorder create specific environments around oxygen atoms that lead to labile oxygen electrons that participate in the practical capacity of cathodes. See also: News and Views by Delmas A synthetic molecular system capable of mirror-image genetic replication and transcription   pp698 - 704 Zimou Wang, Weiliang Xu, Lei Liu and Ting F. Zhu doi:10.1038/nchem.2517 A mirror-image polymerase—a version of African swine fever virus polymerase X made from D-amino acids—has now been chemically synthesized. This polymerase can catalyse template-directed L-DNA replication and transcription from L-DNA into L-RNA. These reactions represent two key steps in the central dogma of molecular biology—but demonstrated using the opposite chirality. In situ mapping of the energy flow through the entire photosynthetic apparatus   pp705 - 710 Jakub Dostál, Jakub Pšencík and Donatas Zigmantas doi:10.1038/nchem.2525 Effective light capture in photosynthetic organisms depends on the efficiency of all energy-transfer steps in the photosynthetic unit. Two-dimensional electronic spectroscopy has now been used on intact cells in situ to reveal and characterize the functional connectivity between individual complexes in the photosynthetic apparatus of green sulfur bacteria. Dynamic control over supramolecular handedness by selecting chiral induction pathways at the solution–solid interface   pp711 - 717 Yuan Fang, Elke Ghijsens, Oleksandr Ivasenko, Hai Cao, Aya Noguchi et al. doi:10.1038/nchem.2514 The formation of homochiral supramolecular networks at solution–solid interfaces typically relies on the soldier-and-sergeant approach, in which a small amount of chiral modifier defines the handedness of the network. Now, judicious choice of the sergeant, solvent, temperature and concentration has enabled chiral induction pathways to be controlled so that a homochiral surface of either handedness can be assembled from the same system. Chemical compounds Fabrication of carbon nanorods and graphene nanoribbons from a metal–organic framework   pp718 - 724 Pradip Pachfule, Dhanraj Shinde, Mainak Majumder and Qiang Xu doi:10.1038/nchem.2515 A rod-shaped metal–organic framework can be converted into one-dimensional carbon nanorods through a catalyst-free thermal transformation in which the morphology of the material is preserved. The as-synthesized nanorods can be unravelled to form 2–6-layer graphene nanoribbons by ultrasonication in the presence of KOH, followed by thermal activation. See also: News and Views by Tang & Yamauchi Dissipative self-assembly of vesicular nanoreactors   pp725 - 731 Subhabrata Maiti, Ilaria Fortunati, Camilla Ferrante, Paolo Scrimin and Leonard J. Prins doi:10.1038/nchem.2511 Dissipative self-assembly processes are energetically uphill and require the continuous consumption of energy. Now, by using ATP as a chemical fuel, the dissipative self-assembly of vesicles has been demonstrated. These transiently formed supramolecular assemblies are able to sustain a chemical reaction and it is shown that the yield depends on the lifetime of the vesicles. Chemical compounds In Your Element Top The world of krypton revisited   p732 Gary J. Schrobilgen and Matic lozinsek doi:10.1038/nchem.2538 Matic Lozinsek and Gary J. Schrobilgen consider krypton — namesake of Superman's home planet — its superoxidant compounds, and their roles in coaxing elements into their highest oxidation states. Top   Natureevents is a fully searchable, multi-disciplinary database designed to maximise exposure for events organisers. The contents of the Natureevents Directory are now live. The digital version is available here. Find the latest scientific conferences, courses, meetings and symposia on natureevents.com. For event advertising opportunities across the Nature Publishing Group portfolio please contact natureevents@nature.com More Nature Events

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