Results 91 to 100 of about 25,864 (264)

(4-Butyl-1-ethyl-1,2,4-triazol-5-ylidene)[(1,2,5,6-η)-cycloocta-1,5-diene](triphenylphosphane)iridium(I) tetrafluoridoborate

IUCrData
The title compound, [Ir(C8H12)(C8H15N3)(C18H15P)]BF4, a new triazole-based N-heterocyclic carbene iridium(I) cationic complex with a tetrafluoridoborate counter-anion, crystallizes with two cations and two anions in the asymmetric unit of space group Pc.
Timothy G. Lerch, Michael Gau, Daniel R. Albert, Edward Rajaseelan   +3 more
doaj   +1 more source

Alkyne hydroarylation with Au N-heterocyclic carbene catalysts

Beilstein Journal of Organic Chemistry, 2013
Mono- and dinuclear gold complexes with N-heterocyclic carbene (NHC) ligands have been employed as catalysts in the intermolecular hydroarylation of alkynes with simple unfunctionalised arenes.
Cristina Tubaro, Marco Baron, Andrea Biffis, Marino Basato   +3 more
doaj   +1 more source

trans-Bis{1-[2-(2,6-diisopropylanilino)phenyl]-3-isopropylimidazolin-2-ylidenyl-κC2}diiodidopalladium(II) benzene disolvate

Acta Crystallographica Section E, 2011
In the title complex, [PdI2(C24H31N3)2]·2C6H6, the Pd2+ ion is located on an inversion centre in a slightly distorted square-planar geometry. The angle between the I2C2 square plane and the mean plane of the N-heterocyclic carbene ring is 79.8 ...
Christopher G. Daly, Kuldip Singh, Warren B. Cross   +2 more
doaj   +1 more source

Shedding Light on Synthetic Autocatalysis: From Conventional Closed‐Shell Chemistries to Overlooked Open‐Shell Occurrences

Chemistry – A European Journal, EarlyView.
Why add another catalyst when the product itself holds the power to catalyze its own formation? Autocatalysis in synthetic chemistry enhances reaction efficiency and uncovers novel catalytic behavior across both closed‐shell and open‐shell systems, expanding reactivity and enabling innovative design strategies.
Jaspreet Kaur, Joshua P. Barham
wiley   +1 more source

Changing N^C^O to C^N^O Coordination in Cyclometalated Pt(II) and Pd(II) Complexes Modulates Stability and Emission Characteristics: Toward Brighter Versatility

Chemistry – A European Journal, EarlyView.
A new class of cyclometalated metal complexes with pincer luminophores (C^N^O and N^C^O) is reported. They unite high photoluminescence efficiencies in liquid solutions at r.t. with tunable colors across the visible spectrum and convenient synthetic accessibility.
Joschua Lüke, Yokari Godinez‐Loyola, Alexander Hepp, Jutta Kösters, Cristian A. Strassert   +4 more
wiley   +1 more source

[(1,2,5,6-η)-Cycloocta-1,5-diene](1-ethyl-4-isobutyl-1,2,4-triazol-5-ylidene)(triphenylphosphane)iridium(I) tetrafluoridoborate dichloromethane hemisolvate

IUCrData
A new triazole-based N-heterocyclic carbene IrI cationic complex with a tetrafluoridoborate counter-anion and hemi-solvating dichloromethane, [Ir(C8H12)(C8H15N3)(C18H15P)]BF4·0.5CH2Cl2, has been synthesized and structurally characterized.
Timothy G. Lerch, Michael Gau, Daniel R. Albert, Edward Rajaseelan   +3 more
doaj   +1 more source

Monosubstituted N‐Arylhydroxylamine Chemistry: Integrating Contemporary Synthetic Approaches for the Efficient Construction of Diverse Heterocyclic Scaffolds

Chemistry – A European Journal, EarlyView.
Monosubstituted N‐arylhydroxylamines represent a unique subclass of hydroxylamines that act as pivotal intermediates in redox transformations and as versatile platforms for further synthetic transformations. They serve as key building blocks in the synthesis of architecturally complex heterocycles and other valuable organic compounds.
Michael G. Kallitsakis, Kyriakos D. Nikopoulos, Ioannis N. Lykakis   +2 more
wiley   +1 more source

Synthesis, metal complexes, reduction chemistry and antimicrobial applications of a novel bis(imino)acenaphthene (BIAN)-supported N-heterocyclic carbene

, 2013
textThe use of N-heterocyclic carbenes (NHCs) as ligands in catalysis is one of the most significant developments in modern catalysis and organometallic chemistry.
Butorac, Rachel Renee
core   +1 more source

Palladium-NHC Catalyzed Enantioselective Synthesis of Fused Indolines via Inert C(sp3)-H Activation

CHIMIA, 2012
New sterically hindered chiral N-heterocyclic carbene (NHC) ligands were used in palladium catalysis to bring about a highly enantioselective C(sp3)-H activation on the methylene site of a cycloalkane moiety. The intramolecular coupling reaction
Masafumi Nakanishi, Dmitry Katayev, Céline Besnard, E. Peter Kündig   +3 more
doaj   +1 more source

Lewis‐Acidic Properties and Catalytic Behavior of Hydroboration‐ and Diolysis‐Derived NHC‐Stabilized Borenium Cations

Chemistry – A European Journal, EarlyView.
A series of thirteen (N‐heterocyclic carbene) NHC‐stabilized borenium cations is synthesized from NHC→BH3 complexes via hydroboration and condensation with diols. The novel compounds are fully characterized. Eight crystal structures are presented. Kinetic and NMR data show how the structural features translate to catalytic activity in hydrosilylation ...
Michał Jakubczyk, Michaela Buziková, Matouš Kloda, Miroslava Litecká, Karel Škoch   +4 more
wiley   +1 more source