Results 21 to 30 of about 127,938 (332)

The development and use of novel iridium complexes as catalysts for ortho-directed hydrogen isotope exchange reactions [PDF]

open access: yes, 2010
The preparation and application of groups of new iridium complexes are described. In particular, iridium complexes possessing phosphine ligands and a bulky N-heterocyclic carbene have been shown to be robust and readily handled species and have been ...
Atzrodt   +42 more
core   +1 more source

Iridium Corroles Exhibit Weak Near-Infrared Phosphorescence but Efficiently Sensitize Singlet Oxygen Formation. [PDF]

open access: yes, 2020
Six-coordinate iridium(III) triarylcorrole derivatives, Ir[TpXPC)]L2, where TpXPC = tris(para-X-phenyl)corrole (X = CF3, H, Me, and OCH3) and L = pyridine (py), trimethylamine (tma), isoquinoline (isoq), 4-dimethylaminopyridine (dmap), and 4-picolinic ...
Borisov, Sergey M   +3 more
core   +2 more sources

Machine learning-based treatment couch parameter prediction in support of surface guided radiation therapy

open access: yesTechnical Innovations & Patient Support in Radiation Oncology, 2022
Purpose: A fully independent, machine learning-based automatic treatment couch parameters prediction was developed to support surface guided radiation therapy (SGRT)-based patient positioning protocols.
Geert De Kerf   +4 more
doaj  

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

ChemInform Abstract: Iridium‐Catalyzed Arylative Cyclization of Alkynones by 1,4‐Iridium Migration. [PDF]

open access: yesChemInform, 2014
Abstract1,4‐Metal migrations enable the remote functionalization of CH bonds, and have been utilized in a wide variety of valuable synthetic methods. The vast majority of existing examples involve the 1,4‐migration of palladium or rhodium. Herein, the stereoselective synthesis of complex polycycles by the iridium‐catalyzed arylative cyclization of ...
Benjamin M. Partridge   +5 more
openaire   +5 more sources

Iridium Corroles

open access: yesJournal of the American Chemical Society, 2008
This work reports the synthesis and full characterization of 5,10,15-tris-pentafluorophenylcorrolato-iridium(III) bis-trimethylamine 1 and its octabromo derivative 2. The corrole is planar in both cases (the mean deviation from the plane is as low as 0.0371 A for 1 and 0.0325 A for 2), the UV-vis spectra display a split Soret band with a shoulder ...
Palmer, Joshua H.   +5 more
openaire   +4 more sources

Assessing the impact of adaptations to the clinical workflow in radiotherapy using transit in vivo dosimetry

open access: yesPhysics and Imaging in Radiation Oncology, 2023
Background and Purpose: Currently in-vivo dosimetry (IVD) is primarily used to identify individual patient errors in radiotherapy. This study investigated possible correlations of observed trends in transit IVD results, with adaptations to the clinical ...
Evy Bossuyt   +4 more
doaj  

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

pH sensor properties of electrochemically grown iridium oxide [PDF]

open access: yes, 1990
The open-circuit potential of an electrochemically grown iridium oxide film is measured and shows a pH sensitivity between −60 and −80 mV/pH. This sensitivity is found to depend on the state of oxidation of the iridium oxide film; for a higher state of ...
Bergveld, P.   +4 more
core   +3 more sources

Investigation of geomagnetic reference models based on the Iridium $$^{\circledR }$$ ® constellation

open access: yesEarth, Planets and Space, 2022
The World Magnetic Model (WMM) is a geomagnetic main field model that is widely used for navigation by governments, industry and the general public. In recent years, the model has been derived using high accuracy magnetometer data from the Swarm mission.
Samuel Califf   +7 more
doaj   +1 more source

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