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Ammonia decomposition catalysis using lithium–calcium imide

27-Apr-2016 | Joshua W. Makepeace; Hazel M. A. Hunter; Thomas J. Wood; Ronald I. Smith; Claire A. Murray; William I. F. David, Faraday Discussions, 2016

Lithium–calcium imide is explored as a catalyst for the decomposition of ammonia. It shows the highest ammonia decomposition activity yet reported for a pure light metal amide or imide, comparable to lithium imide–amide at high temperature, with superior conversion observed at lower temperatures. ...

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Dynamics and spectroscopy of CH2OO excited electronic states

26-Apr-2016 | Jaroslaw Kalinowski; Elizabeth S. Foreman; Kara M. Kapnas; Craig Murray; Markku Räsänen; R. Benny Gerber, Physical Chemistry Chemical Physics, 2016

The excited states of the Criegee intermediate CH2OO are studied in molecular dynamics simulations using directly potentials from multi-reference perturbation theory (MR-PT2). The photoexcitation of the species is simulated, and trajectories are propagated in time on the excited state. Some of ...

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Helium permeability of polymer materials as liners for composite overwrapped pressure vessels

19-Apr-2016 | Brendan R. Murray, Sean B. Leen, Christopher O. A. Semprimoschnig, Conchúr M. Ó Brádaigh, Journal of Applied Polymer Science, 2016

ABSTRACT Polymers have been identified as replacement materials for metallic liners in composite overwrapped pressure vessels (COPVs) for future space launchers. PEEK, Nylon, and PVDF plastics formed from base powder grades have been permeability tested to determine their susceptibility to the ...

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Individual differences in frontolimbic circuitry and anxiety emerge with adolescent changes in endocannabinoid signaling across species [Psychological and Cognitive Sciences]

19-Apr-2016 | Dylan G. Gee; Robert N. Fetcho; Deqiang Jing; Anfei Li; Charles E. Glatt; Andrew T. Drysdale; Alexandra O. Cohen; Da ..., Proceedings of the National Academy of Sciences current issue, 2016

Anxiety disorders peak in incidence during adolescence, a developmental window that is marked by dynamic changes in gene expression, endocannabinoid signaling, and frontolimbic circuitry. We tested whether genetic alterations in endocannabinoid signaling related to a common polymorphism in fatty ...

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Mechanism for accurate, protein-assisted DNA annealing by Deinococcus radiodurans DdrB [Biochemistry]

19-Apr-2016 | Seiji N. Sugiman-Marangos; Yoni M. Weiss; Murray S. Junop, Proceedings of the National Academy of Sciences current issue, 2016

Accurate pairing of DNA strands is essential for repair of DNA double-strand breaks (DSBs). How cells achieve accurate annealing when large regions of single-strand DNA are unpaired has remained unclear despite many efforts focused on understanding proteins, which mediate this process. Here we ...

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Synthesis of PF-04995274

18-Apr-2016 | D W Widlicka; J C Murray; K J Coffman; C Xiao; M A Brodney; J P Rainville; B Samas, Synfacts, 2016

Synfacts 2016; 12: 0449-0449DOI: 10.1055/s-0035-1561981 ©Georg Thieme Verlag Stuttgart · New York Artikel in Thieme eJournals:Inhaltsverzeichnis|Volltext

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Near-UV photodissociation dynamics of CH2I2

13-Apr-2016 | Benjamin W. Toulson; Jonathan P. Alaniz; J. Grant Hill; Craig Murray, Physical Chemistry Chemical Physics, 2016

The near-UV photodissociation dynamics of CH2I2 has been investigated using a combination of velocity-map (slice) ion imaging and ab initio calculations characterizing the excited states. Ground state I(2P3/2) and spin–orbit excited I*(2P1/2) atoms were probed using 2 + 1 resonance-enhanced ...

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Engineering titania nanostructure to tune and improve its photocatalytic activity [Chemistry]

12-Apr-2016 | Matteo Cargnello; Tiziano Montini; Sergey Y. Smolin; Jacqueline B. Priebe; Juan J. Delgado Jaén; Vicky V. T. Doan-Ng ..., Proceedings of the National Academy of Sciences current issue, 2016

Photocatalytic pathways could prove crucial to the sustainable production of fuels and chemicals required for a carbon-neutral society. Electron−hole recombination is a critical problem that has, so far, limited the efficiency of the most promising photocatalytic materials. Here, we show the ...

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ChemInform Abstract: Catalyst‐Free Preparation of Heterocyclic Thienyl Sulfides

08-Apr-2016 | Kristen Barrett, James McKee, Murray Zanger, ChemInform, 2016

Abstract Title compounds [(III), (V), and (VII)] are easily synthesized under mild conditions using a neat and catalyst‐free procedure.

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