نتایج جستجو برای: iridium

تعداد نتایج: 4262  

2015
Bin Li Guiqin Huang Jian Sun Zhongwen Xing

In the original version of this Article, the affiliations for Bin Li were incorrectly listed as ‘College of Science, Nanjing University of Posts and Telecommunications, Nanjing 210023, China’, ‘National Laboratory of Solid State Microstructures and School of Physics, Nanjing University, Nanjing 210093, China’ and ‘Collaborative Innovation Center of Advanced Microstructures, Nanjing University, ...

Journal: :Physical chemistry chemical physics : PCCP 2014
Patryk Zaleski-Ejgierd

A new class of binary iridium hydrides (IrxHy) is investigated in the 1 atm to 125 GPa pressure range at the ab initio level, using DFT. Upon compression a number of hydrides are predicted to stabilize in the excess hydrogen environment. Static stabilization pressure is calculated to be ∼14 and ∼5 GPa at which a dihydride (Ibam, Z = 2) and a trihydride (P63mc, Z = 2) stabilize thermodynamically...

2005
L. B. Hunt

The use in unmanned space craft of iridium to encapsulate the radioisotope thermoelectric generators, where temperatures of up to 20OO0C have to be withstood over several years of operation, with possible impact velocities of 90 metres per second, has focused greater attention on the remarkable properties of this member of the platinum group of metals. But these same properties of very high mel...

Journal: :Chemical communications 2012
Andrew J Hallett Nathan White Wanhua Wu Xiaoneng Cui Peter N Horton Simon J Coles Jianzhang Zhao Simon J A Pope

The iridium(III) cyclometalation of alkylated pyrene-benzimidazole ligands proceeds in an unprecedented manner. The resultant complexes display remarkably enhanced photooxidation capabilities using 1,5-dihydroxynaphthalene as a substrate.

Journal: :Dalton transactions 2010
Anna Maria Talarico Iolinda Aiello Anna Bellusci Alessandra Crispini Mauro Ghedini Nicolas Godbert Teresa Pugliese Elisabeta Szerb

The solvent induced polymorphism observed in a cyclometalated iridium(iii) ethylenediamine ionic complex is a new tool to modulate and enhance emission in the solid crystalline state.

Journal: :Chemical communications 2008
Xia Meng Guang-Rong Tang Guo-Xin Jin

Half-sandwich iridium complexes bearing hydroxyindanimine ligands were synthesized and employed as catalysts for the ROMP and vinyl-type polymerization of norbornene in the presence of methylaluminoxane (MAO).

Journal: :Chemical communications 2015
Midori Nagamoto Takahiro Nishimura

Asymmetric cyclization of alkenoic acids was realized by the use of an iridium/chiral bisphosphine catalyst, giving high yields of the corresponding γ-lactones with good enantioselectivity.

Journal: :Journal of Research of the National Bureau of Standards, Section C: Engineering and Instrumentation 1964

Journal: :Synfacts 2022

Key words iridium catalysis - chiral phosphoric acid photocatalyst 2+2 cycloaddition

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