Iridium complexes with monodentate N-heterocyclic carbene ligands
Gellért Sipos,Reto Dorta +1 more
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TL;DR: In this article, a comprehensive overview on synthetic methods available to access NHC-Ir compounds, the stoichiometric activity of the resulting complexes as well as their use in catalysis and other applications is given in the following pages.
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About: This article is published in Coordination Chemistry Reviews. The article was published on 01 Dec 2017. and is currently open access.
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Citations
N-Heterocyclic Carbene Complexes in C–H Activation Reactions
TL;DR: Through discussing the role of NHC ligands in promoting challenging C-H activation methods, the reader is provided with an overview of this important area and its crucial role in forging carbon-carbon and carbon-heteroatom bonds by directly engaging ubiquitous C- H bonds.
520
Cationic iridium complexes bearing imidazol-2-ylidene ligands as transfer hydrogenation catalysts
Anna C. Hillier,Hon Man Lee,Steven P. Nolan +2 more
- 01 Jan 2001
TL;DR: In this article, the synthesis and characterization of the PF6 and diazabutadienes complexes were reported. But their activity was not compared with that of the related cationic iridium(I) species.
147
Recent progress in phosphorescent Ir(III) complexes for nondoped organic light-emitting diodes
TL;DR: In this paper, the authors provide an update on recent advances in the development of Ir(III) complexes and their applications in nondoped PHOLEDs fabricated by both vacuum deposition and solution-processed approaches.
89
A simple 1H NMR method for determining the σ-donor properties of N-heterocyclic carbenes
TL;DR: In this article, the σ-donor properties of NHC ligands were measured using a simple 1H NMR measurement of ligand precursors to determine the selectivity and reactivity in transition-metal-catalysis.
85
BIAN-NHC Ligands in Transition-Metal-Catalysis: A Perfect Union of Sterically Encumbered, Electronically Tunable N-Heterocyclic Carbenes?
TL;DR: BIAN-NHC ligands take advantage of the stronger σσ-donation, lower lying LUMO orbitals, the presence of an extended ππ-system, and the rigid backbone that pushes the N-wingtip substituents closer to the metal center by buttressing effect, resulting in a significantly improved control of the catalytic center and enhanced air-stability of BIAN- NHC-metal complexes at low oxidation state.
67
References
Unsymmetrically Substituted Iridium(III)−Carbene Complexes by a CH-Activation Process†
TL;DR: In this paper, the metalhydride Cp*(L ǫ)IrH+OTf was synthesized by a cyclohexane-to-cyclohexene transformation at the N-hete.
102
Bimetallic N-Heterocyclic Carbene−Iridium Complexes: Investigating Metal−Metal and Metal−Ligand Communication via Electrochemistry and Phosphorescence Spectroscopy
Andrew G. Tennyson,Evelyn L. Rosen,Mary S. Collins,Vincent M. Lynch,Christopher W. Bielawski +4 more
TL;DR: Results suggest that N-heterocyclic carbenes (NHCs) such as 1 could link together two emissive fragments without altering their fundamental phosphorescence profiles, and could facilitate the rational design of new phosphorescent materials as well as second-generation phosphor dopants.
101
C-H oxidative addition of bisimidazolium salts to iridium and rhodium complexes, and N-heterocyclic carbene generation. A combined experimental and theoretical study
Mónica Viciano,Macarena Poyatos,Mercedes Sanau,Eduardo Peris,Andrea Rossin,Gregori Ujaque,Agustí Lledós +6 more
TL;DR: A series of bis-N-heterocyclic carbenes of rhodium and iridium have been obtained and characterized in this article, and the formation of the M−C bond has been studied according to experimental and theoretical data.
101
Design, Synthesis, and Study of Main Chain Poly(N-Heterocyclic Carbene) Complexes: Applications in Electrochromic Devices
TL;DR: Electrochemical analyses of the polymer thin films revealed that they exhibited highly reversible electrochromic phenomena.
99
Ligand effects of NHC–iridium catalysts for signal amplification by reversible exchange (SABRE)
B.J.A. van Weerdenburg,Stefan Glöggler,Nan Eshuis,Anthonius H. J. Engwerda,Jan M. M. Smits,R. de Gelder,Stephan Appelt,Stephan Appelt,S.S. Wymenga,Marco Tessari,Martin C. Feiters,Bernhard Blümich,Floris P. J. T. Rutjes +12 more
TL;DR: SABRE hyperpolarizes substrates by polarization transfer from para-hydrogen in a metal complex by measuring the signal enhancement of pyridine and its exchange rate in various [Ir(NHC)(Py)3(H)2](+) complexes to gain insight into their dependence on the N-Heterocyclic Carbene ligand's steric and electronic properties.
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