Browsing Chemistry by Title
Now showing items 773-792 of 1270
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Palladium bis(phosphinite) 'PCP'-pincer complexes and their application as catalysts in the Suzuki Reaction
(2000)Palladium complexes of inexpensive, easily synthesised bis(phosphinite) `PCP ?-pincer ligands show good activity in the Suzuki coupling of deactivated and sterically hindered aryl bromides -
Passing it up the ranks: hierarchical ion-size dependent supramolecular response in 1D coordination polymers
(2018)The synthesis and structural characterisations of four 1D coordination polymers based on the 1,3,5-tris(4-carboxyphenyl)benzene (H3btb) and 2,4,6-tris(2-pyridyl)-1,3,5-triazine (2-tpt) ligands are reported: [MII(Hbtb)(2- ... -
Paving the way to the integration of smart nanostructures: Part II: Nanostructured microdispersed hydrated metal oxides for electrochemical energy conversion and storage applications
(2011)The use of hydrogen gas produced by the electrolysis of water is the basis of a long term energy conversion and storage option that has been and still continues to be the subject of considerable research. Alkaline water ... -
PbO2: from semi-metal to transparent conducting oxide by defect chemistry control
(2013)Lead dioxide has been studied for over 150 years as a component of the lead-acid battery. Based on first-principles calculations, we predict that by tuning the concentration ofelectrons in the material, through control ... -
Pdots, a new type of nanoparticle, bind to mTHPC via their lipid modified surface and exhibit very high FRET efficiency between the core and the sensitizer
(2015)Pdots are a new type of nanoparticle which exhibit strong potential for future applications in biophysics and cell biology. They are composed of organic chromophoric polymers, whose surfaces can be modified with different ... -
Perfluorinated phosphine and hybrid P-O ligands for Pd catalysed C-C bond forming reactions in solution and on Teflon supports
(2019)The synthesis of two types of phosphine ligands that feature perfluorinated ponytails is reported. A bidentate (RfCH2CH2)2PCH2CH2P(CH2CH2Rf)2 (Rf = CF3(CF2)n; n = 5, 7) and an alkoxyphosphine made by ring opening a fluorous ... -
Perforating Freestanding Molybdenum Disulfide Monolayers with Highly Charged Ions
(2019)Porous single-layer molybdenum disulfide (MoS2) is a promising material for applications such as DNA sequencing and water desalination. In this work, we introduce irradiation with highly charged ions (HCIs) as a new technique ... -
Phenol Oxidation by a Nickel(III)-Fluoride Complex: Exploring the Influence of the Proton Accepting Ligand in PCET Oxidation
(2020)In order to gain insight into the influence of the H+‐accepting terminal ligand in high‐valent oxidant mediated proton coupled electron transfer (PCET) reactions, the reactivity of a high valent nickel–fluoride complex ... -
Photocatalytic Initiation of Radical Thiol-ene Reactions Using Carbon-Bi2O3 Nanocomposites
(2018)A mild, inexpensive, and general photocatalytic initiation protocol for anti-Markovnikov hydrothiolation of olefins using carbon nanomaterial/metal oxide (carbon NM-MO) composites is reported. Graphene oxide (GO), nanodiamonds ... -
Photochemical [2 + 2] cycloaddition reactions of 6-alkenyl-3-phenylcyclohex-2-en-1-ones: using biradical conformation control to account for exceptions to the "rule of five"
(2011)A series of 6-alkenyl-3-phenylcyclohex-2-enones has been synthesised and the structures of the products obtained from them on irradiation have been determined. The 6-propenyl compounds afforded a tricyclic `parallel? [2 + ... -
Photochemical Transformations Involving Porphyrins and Phthalocyanines
(CRC Press, 2012)Photochemistry of the porphyrins and their relatives has been largely inspired by photosynthetic processes in nature. As a result of this, most current studies generally utilize the chemistry of magnesium and zinc porphyrin ... -
Photochromic molecular switches: Thienyl-based polyphenylenes and the π-delocalisation effect on photochemical properties
(Trinity College Dublin. School of Chemistry. Discipline of Chemistry, 2018)Information storage is at the forefront of materials science due to an exponential increase in demand for faster, more efficient, higher density data storage units. Light-driven photochromic switches form one of the most ... -
Photodynamic therapy against oesophageal cancer : In vitro testing of potential new agents
(Trinity College (Dublin, Ireland). School of Chemistry, 2014)Oesophageal malignancies are one of the leading causes of death in the Western World. The incidence of these diseases is currently on the rise alternative but powerful therapies are being developed against them, an example ... -
Photoluminescence of a quantum-dot molecule
(2015)The coherent coupling of quantum dots is a sensitive indicator of the energy and phase relaxation processes taking place in the nanostructure components. We formulate a theory of low-temperature, stationary photoluminescence ... -
Photoluminescence properties of open and closed uranium compounds in non-aqueous media
(Trinity College (Dublin, Ireland). School of Chemistry, 2013)Luminescence spectroscopy has been successfully applied to elucidate the photophysical properties of a family of uranium halides and pseudohalides, in two oxidation states (U IV and U VI) in non-aqueous media. The first ...