Results 61 to 70 of about 109,300 (351)

Iridium-Catalyzed Silylation of Five-Membered Heteroarenes: High Sterically Derived Selectivity from a Pyridyl-Imidazoline Ligand. [PDF]

open access: yes, 2020
The steric effects of substituents on five-membered rings are less pronounced than those on six-membered rings because of the difference in bond angles. Thus, the regioselectivities of reactions of five-membered heteroarenes that occur with selectivities
Hartwig, John F   +3 more
core   +1 more source

In-Ir (Indium-Iridium) [PDF]

open access: yesJournal of Phase Equilibria, 2000
The In-Ir phase diagram was unknown in [Massalski2]. A partial phase diagram up to 50 at.% Ir was reported by [2000Anr] (see [2001Oka]). Two compounds, In3Ir and In2Ir, were shown, but the liquidus boundaries were unknown except that for In3Ir. The work of [2000Anr] was updated by [2002Fla] based on x-ray diffraction, electron probe microanalysis, and ...
openaire   +2 more sources

Electrochemical deposition of iridium and iridium-nickel-alloys

open access: yesIOP Conference Series: Materials Science and Engineering, 2017
To develop durable and reliable electronic contacts, precious metals are still very important for finish plating of contact surfaces. The lesser-known iridium might be an interesting alternative to substitute gold alloys, platinum or rhodium for applications with highest demands to wear and corrosion resistance such as sliding and plug contacts.
J Näther   +4 more
openaire   +2 more sources

Establishment and biological characterization of radioresistant colorectal cancer cell lines

open access: yesFEBS Open Bio, EarlyView.
Under ionizing radiation exposure, radiation‐sensitive cancer cells exhibit oxidative stress and DNA damage, while radiation‐resistant cancer cells exhibit strong antioxidant properties and DNA damage repair. Radiotherapy resistance is a major cause of recurrence and metastasis in colorectal cancer (CRC).
Tian‐Yin Qu   +10 more
wiley   +1 more source

Comparative study of adenosine 3′‐pyrophosphokinase domains of MuF polymorphic toxins

open access: yesFEBS Open Bio, EarlyView.
With the ultimate goal of understanding the association of toxin‐immunity modules to temperate phages, we characterized toxins from three prophages and examined cross‐protection from immunity proteins. The toxins exhibit adenosine 3′‐pyrophosphokinase activity and are toxic in Escherichia coli.
Eloïse M. Paulet   +6 more
wiley   +1 more source

Rigid biimidazole ancillary ligands as an avenue to bright deep blue cationic iridium(III) complexes [PDF]

open access: yes, 2014
EZ-C acknowledges the University of St Andrews for financial support. Date of Acceptance: 03/06/2014Herein we report the synthesis and optoelectronic characterisation of three deep blue-emitting cationic iridium complexes, of the form [Ir(dFppy)2(N^N ...
Evariste, Sloane   +3 more
core   +2 more sources

THE RADIOCHEMISTRY OF IRIDIUM [PDF]

open access: yes, 1961
The general and analytical chemistry of Ir are reviewed and applications to the radiochemistry of Ir are discussed. Topics covered include dissolution of samples containing Ir, counting techniques for radioactive Ir isotopes, radiochemical procedures for Ir radionuclides, and safety practices. A list is included of the radioactive nuclides of Ir.
openaire   +3 more sources

Non-radiative decay and stability of $N$-heterocyclic carbene iridium(III) complexes [PDF]

open access: yesInorg. Chem. 57, 8881 (2018), 2018
Devices based on deep-blue emitting iridium (III) complexes with N-heterocyclic carbene (NHC) ligands have recently been shown to give excellent performance as phosphorescent organic light-emitting diodes (PHOLEDs). To facilitate the design of even better deep-blue phosphorescent emitters we carried out density functional theory (DFT) calculations of ...
arxiv   +1 more source

Stereotactic body radiotherapy (SBRT) as a treatment for localized prostate cancer: a retrospective analysis

open access: yesRadiation Oncology
Background External beam radiotherapy (EBRT) is a standard treatment for localized prostate cancer, with recent advancements favoring a reduced number of treatment sessions.
Brecht De Cooman   +9 more
doaj   +1 more source

A drift free nernstian iridium oxide PH sensor [PDF]

open access: yes, 1997
A novel way of eliminating drift problems in metal oxide pH sensors is presented. The method employs a FET-structure under the electrode that uses the metal oxide as a gate contact.
Bergveld, P., Hendrikse, J., Olthuis, W.
core   +4 more sources

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