Browsing Chemistry by Title
Now showing items 551-570 of 1269
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Kinetic and mechanistic aspects of the oxygen evolution reaction at hydrous iron oxide films in base
(2013)The oxygen evolution reaction atmulti-cycled iron oxy-hydroxide films in aqueous alkaline solution is discussed. The factors affecting the growth and electrocatalytic properties of the latter are described. In particular, ... -
Kinetic resolution of sec-alcohols using a new class of readily assembled (S)-proline-derived 4-(pyrrolidino)-pyridine analogues
(2005)We report the development of a new class of readily prepared chiral 4-(pyrrolidino)-pyridine catalysts capable of exploiting both van der Waals (?) and H-bonding interactions, thus allowing remote chiral information to ... -
Konformativer Umbau von Porphyrinen als Rezeptoren mit schaltbaren N‐H⋅⋅⋅X‐Bindungsmodi
(2019)Die Selektivität und funktionale Variabilität von Porphyrinkofaktoren basiert typischerweise auf der Substratbindung durch Metalloporphyrine, wobei die Pyrrolstickstoffatome nur zur Chelatisierung der Metallionen dienen. ... -
Lanthanide directed self-assembly formations of Tb(iii) and Eu(iii) luminescent complexes from tryptophan based pyridyl amide ligands
(2011)The formation of self-assembly complexes between the ligands 1 (SS) and 2 (RR) and terbium or europium was undertaken and shown (using various spectroscopic titrations) to give rise to the exclusive formation of 2 : 1 (L ... -
Lanthanide luminescence sensing of copper and mercury ions using an iminodiacetate based Tb(III)-cyclen chemosensor
(2010)The design, synthesis and photophysical evaluation of 1.Tb.Na, a Tb(III)-cyclen based sensor, possessing a phenyl iminodiacetate based receptor, for the selective detection of Cu(II) and Hg(II) ions in water is demonstrated. ... -
A Lanthanide luminescent cation exchange material derived from a flexible tricarboxylic acid 2,6-Bis(1,2,3-Triazol-4-yl)pyridine (btp) tecton
(2018)The synthesis of the three-dimensional metal–organic framework material, [Zn7L6]·(H2NMe2)4·(H2O)45 (1), derived from a flexible tricarboxylic acid 2,6-bis(1,2,3-triazol-4-yl)pyridine (btp) ligand, is presented. The btp ... -
Lanthanide luminescent gold nanoparticles: pH-driven self-assembly formation between Eu(III)-cyclen conjugated AuNPs and sensitising β-diketonate antenna in water
(2009)The formation of a self-assembly between water soluble gold nanoparticles AuNP-1.Eu, functionalised with a heptadentate macrocyclic Eu(III) cyclen conjugate via an alkyl thiol spacer, and a naphthalene -diketone antenna ... -
Lanthanide luminescent self-assembly complexes : from solution studies to mechanical sensing on gold surfaces
(Trinity College (Dublin, Ireland). School of Chemistry, 2009)This thesis entitled "Lanthanide Luminescent Self-Assembly Complexes: From Solution Studies to Mechanical Sensing on Gold Surfaces" is divided into five Chapters. Chapter 1 gives a detailed account of lanthanide-based ... -
Lanthanide macrocyclic quinolyl conjugates as luminescent molecular switches and integrated logic gates using H+ and O2 as inputs
(2009)The design and synthesis of 1Tb, a Tb(III) quinoline?cyclen based complex, are described. The results from the photophysical investigation of 1Tb are compared with the results observed from its Eu(III) analogue, 1Eu. The ... -
Lanthanide-directed self-assembly formations from novel dipicolinic acid derivatives
(Trinity College (Dublin, Ireland). School of Chemistry, 2014)This thesis, entitled “Lanthanide-Directed Self-Assembly Formations from Novel Dipicolinic Acid Derivatives” is divided into six chapters. Chapter 1, the introduction, gives an overview of the lanthanide ions including ... -
Large area quantum dot luminescent solar concentrators for use with dye-sensitised solar cells
(2018)Luminescent solar concentrators (LSCs) have the potential to significantly contribute to solar energy harvesting strategies in the built environment. For the practical realisation of LSC technology, the ability to create ... -
Large-area integration of two-dimensional materials and their heterostructures by wafer bonding
(2021)Integrating two-dimensional (2D) materials into semiconductor manufacturing lines is essential to exploit their material properties in a wide range of application areas. However, current approaches are not compatible with ... -
Layered CeSO and LiCeSO Oxide Chalcogenides Obtained via Topotactic Oxidative and Reductive Transformations
(2019)The chemical accessibility of the CeIV oxidation state enables redox chemistry to be performed on the naturally coinage-metal-deficient phases CeM1–xSO (M = Cu, Ag). A metastable black compound with the PbFCl structure ... -
Layered double hydroxide as a potent non-viral vector for nucleic acid delivery using gene-activated scaffolds for tissue regeneration applications
(2020)Nonviral vectors offer a safe alternative to viral vectors for gene therapy applications, albeit typically exhibiting lower transfection efficiencies. As a result, there remains a significant need for the development of a ... -
A lead BODIPY-phenylanthracene dyad for application in photodynamic therapy
(2019)Over the past four years we have developed BODIPY dyads capable of triplet state generation from a charge transfer states generated by photoinduced electron transfer. In the current work we identify a lead compound for ... -
Lead structures for applications in photodynamic therapy 7. Efficient synthesis of amphiphilic glycosylated lipid porphyrin derivatives: Refining linker conjugation for potential PDT applications
(2015)Herein, we report synthetic strategies towards a library of amphiphilic tetraphenyl porphyrins anchored to synthetic saccharides and lipid modalities. The carbohydrates and lipid functionalities are covalently linked to ... -
Lead structures for Applications in Photodynamic Therapy. 2. Synthetic studies for photo-triggered release systems of bioconjugate porphyrin photosensitizers
(2009)Photodynamic therapy (PDT) selectivity and specificity can be improved by binding the photosensitizers to target receptors. One approach is to cross-link porphyrins to a biological target receptor via the photocleavable ... -
Lead structures for applications in photodynamic therapy. 3. Temoporfin (Foscan?, 5,10,15,20-Tetra(m-hydroxyphenyl)chlorin), a Second Generation Photosensitizer
(2011)ABSTRACT This review traces the development and study of the second generation photosensitizer 5,10,15,20-tetra(m-hydroxyphenyl)chlorin through to its acceptance and clinical use in modern photodynamic (cancer) therapy ... -
Lead structures for applications in photodynamic therapy. 5. Synthesis and biological evaluation of water soluble phosphorus (V) 5,10,15,20-tetraalkylporphyrins for PDT.
(2014)Summary Improved photosensitizers for use in photomedicine must possess good water-solubility and optimal photophysical properties. Phosphorus(V) porphyrins fulfill these criteria and are a class of porphyrins with ...
