Results 31 to 40 of about 57,500 (285)

Iridium-Catalyzed Enantioselective Allylic Substitution of Vinylcyclopropanes by Carboxylic Acids

open access: yes, 2023
An efficient method for a highly regio- and enantioselective allylic substitution of vinylcyclopropanes using carboxylic acids as oxygen nucleophile via iridium catalysis has been developed.
Amit Singh Adhikari (13910670)   +7 more
core   +2 more sources

Sol‐Gel‐Syntheses and Structural as well as Electrical Characterizations of Anatase‐ and Rutile‐Type Solid Solutions in the System IrO2−TiO2

open access: yesChemistryOpen, 2023
This paper describes solid solutions in the quasibinary oxide system iridium‐titanium IrO2−TiO2 with rutile and anatase crystal structures. Based on X‐ray diffraction evaluations using Rietveld refinements, changes of lattice parameters were determined ...
Dr. Daniel Reichert   +1 more
doaj   +1 more source

Study of chiral iridium N,P ligand complexes as catalysts for the asymmetric hydrogenation of different substrate classes [PDF]

open access: yes, 2014
The objective of this thesis was the synthesis and further development of different iridium N,P ligand complexes as well as the evaluation and application of different challenging substrate classes in the asymmetric hydrogenation using iridium-based ...
Müller, Marc-André
core   +1 more source

Synthesis and charaterisation of phosphorescent copper (I) complexes for light emitting devices [PDF]

open access: yes, 2013
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Over the last decade, many significant developments have been made to improve the active materials in a new generation of organic light emitting devices ...
Andrés-Tomé, María Inmaculada
core   +5 more sources

Iridium-catalyzed asymmetric hydrogenation of furan derivatives and thiophene 1,1-dioxides [PDF]

open access: yes, 2014
The main focus of the research presented in this dissertation was to broaden the substrate scope of the iridium-catalyzed asymmetric hydrogenation of heterocyclic compounds.
Pauli, Larissa
core   +1 more source

XAFS spectrum of Iridium

open access: yes
This dataset consists of X-ray absorption fine structure (XAFS) spectra at Ir L3-edge of Iridium measured at Photon Factory BL-12C, and is a part of XAFS database (MDR XAFS DB, https://doi.org/10.48505/nims.1447) as a collection of ...
Photon Factory
core   +3 more sources

Iridium anomaly in the cretaceous-paleogene boundary at Højerup (Stevns Klint, Denmark) and Woodside Creek (New Zealand): The question of an enormous proportion of extraterrestrial component [PDF]

open access: yesJournal of the Serbian Chemical Society, 2012
The Cretaceous-Paleogene boundary clays at Højerup and Woodside Creek show anomalous enrichments of iridium compared with the marine sedimentary rocks.
Premović Pavle I.   +2 more
doaj   +1 more source

Iridium-Catalyzed Hydrogenation of a Phenoxy Radical to the Phenol: Overcoming Catalyst Deactivation with Visible Light Irradiation

open access: yes, 2023
Piano-stool iridium hydride complexes bearing phenylpyridine ligands are effective precatalysts for promoting the formation of element-hydrogen bonds using H2 as the stoichiometric H-atom source.
Junho Kim (758076)   +2 more
core   +1 more source

Preparation of boron-carbide-supported iridium nanoclusters for the oxygen evolution reaction

open access: yesElectrochemistry Communications, 2020
Reducing the iridium loading for the oxygen evolution reaction (OER) is one of the main challenges of polymer electrolyte membrane water electrolysis (PEMWE).
Jahowa Islam   +5 more
doaj   +1 more source

Rapid SABRE Catalyst Scavenging Using Functionalized Silicas

open access: yesMolecules, 2022
In recent years the NMR hyperpolarisation method signal amplification by reversible exchange (SABRE) has been applied to multiple substrates of potential interest for in vivo investigation.
Thomas B. R. Robertson   +2 more
doaj   +1 more source

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