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Phosphate bioisostere containing amphiphiles: a novel class of squaramide-based lipids

22-Jul-2016 | Abhishek Saha; Subhankar Panda; Saurav Paul; Debasis Manna, Chemical Communication, 2016

We describe a novel class of amphiphiles with squaramide moiety as a phosphate bioisostere. Most synthesized squaramide-based amphiphiles have the favorable physicochemical properties of lipids, such as: formation of stable liposomes or giant unilamellar vesicles in aqueous solution, high ...

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Bis(mesitoyl)phosphinic acid: Photo-Triggered Release of Metaphosphorous Acid in Solution

22-Jul-2016 | David E. Fast; Michal Zalibera; Andrea Lauer; Anna Eibel; Caroline Schweigert; Anne-Marie Kelterer; Martin Spichty; ..., Chemical Communication, 2016

Bis(mesitoyl)phosphinic acid and its sodium salt display a unique photo-induced reactivity: both derivatives stepwise release two mesitoyl radicals and, remarkably, metaphosphorous acid (previously postulated as transient species in the gas phase), providing a new phosphorus-based reagent.

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Effects of organic acids and initial solution pH on photocatalytic degradation of bisphenol A (BPA) in a photo-Fenton-like process using Goethite ([small alpha]-FeOOH)

22-Jul-2016 | Guangshan Zhang; Qiao Wang; Wen Zhang; Tian Li; Yixing Yuan; Peng Wang, Photochemical & Photobiological Sciences, 2016

This work investigated the effects of organic acids and initial solution pH on the photodegradation of BPA in a photo-Fenton-like process using α-FeOOH as a catalyst. The results showed that the additions of different organic acids affected the formation of the ferric-carboxylate complexes and ...

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Pyridylphosphinate Metal Complexes: Synthesis, Structural Characterisation and Biological Activity

22-Jul-2016 | Jasmine Mary Cross; Natalie Gallagher; Jason H Gill; Mohit Jain; Archibald W McNeillis; Kimberly L Rockley; Fiona H ..., Dalton Transactions, 2016

For the first time, a series of 25 pseudo-octahedral pyridylphosphinate metal complexes (Ru, Os, Rh, Ir) has been synthesised and assessed in biological systems. Each metal complex incorporates a pyridylphosphinate ligand, a monodentate halide and a capping η6-bound aromatic ligand. Solid- and ...

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Control of the Intermolecular Photodimerization of Anthracene Derivatives by the Hydrogen Bonding of Urea Groups in Dilute Solution

19-Jul-2016 | Hisato Matsumoto; Yoshinobu Nishimura; T Arai, Photochemical & Photobiological Sciences, 2016

The photodimerization reaction of anthracene derivatives was performed by capitalizing on intermolecular hydrogen bonds. Anthracene derivatives that can control the dimerization reaction depending on the substitution site were designed by using two anthryl moieties and one urea group, referred to ...

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A highly selective colorimetric chemosensor for cyanide and sulfide in aqueous solution: experimental and theoretical studies

19-Jul-2016 | Cheal Kim; Soo Min Kim; Minjae Kang; Isaac Choi; Jae J Lee, New Journal of Chemistry, 2016

A new colorimetric chemosensor 1 was developed by combination of 4-(p-tolyl)thiazol-2-amine and 2-hydroxy-1-naphthaldehyde. The sensor 1 showed selective colorimetric responses to CN- and S2- in aqueous solution. A clear color change of 1 from yellow to colorless was observed with CN- through a ...

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Photothermally responsive gold nanoparticles conjugated polymer-grafted porous hollow silica nanocapsules

19-Jul-2016 | David Paramelle; Sergey Gorelik; Ye Liu; Jatin Kumar, Chemical Communication, 2016

Polymer-grafted porous hollow silica nanoparticles prepared by reversible addition–fragmentation chain transfer polymerisation have an upper critical solution temperature of 45 °C. Conjugation of 5 nm gold nanoparticles onto polymer-grafted porous hollow silica nanoparticles enables remarkable ...

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First Evidence of Metal Transfer into Hydrophobic Deep Eutectic and Low-Transition-Temperature Mixtures: Indium Extraction from Hydrochloric and Oxalic Acids

19-Jul-2016 | Evgeny Tereshatov; Maria Boltoeva; Charles M Folden III, Green Chemistry, 2016

This is the first report on metallic species transfer from aqueous solution into hydrophobic deep eutectic and low-transition-temperature mixtures. The near-critical and strategic metal, indium, has been successfully extracted from hydrochloric and oxalic acid media into quaternary ammonium- and ...

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Electrocatalytic Water Oxidation by a Chair-like Tetranuclear Copper(II) Complex in a Neutral Aqueous Solution

19-Jul-2016 | Ting-Ting Li; Yue-Qing Zheng, Dalton Transactions, 2016

The development of viable molecular water oxidation catalysts is an important issue in the conversion of electricityor solar fuel into chemical fuels via water splitting and copper complexes have become promising candidates for catalyzing water oxidation because of their low cost, well-defined ...

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Solution-processable bipolar S,S-dixiode-dibenzothiophene chromophores for single-layer organic light-emitting diodes

19-Jul-2016 | Sen Zhao; Yuan Xie; Junfei Liang; Ting Guo; Lei Ying; Hongbin Wu; Wei Yang; Junbiao Peng; YONG CAO, New Journal of Chemistry, 2016

A series of novel bipolar chromophores consisting of 4-(9H-carbazole-9-yl)aniline (TCz) moiety as the electron-donating unit and the isomeric meta- or para-linked S,S-dioxide-dibenzothiophene (SO) unit as the electron-withdrawing unit were designed and synthesized. These chromophores exhibited ...

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