Reaction of 1,3-dimesitylimidazol-2-ylidene and trichloro-oxo-vanadium(V) yields an air stable 1:1 adduct, which demonstrates the utility of N-heterocyclic carbenes to stabilize metal complexes in high oxidation states. (strath.ac.uk)
Previous studies indicated that this orbital was not involved in the bonding of N-heterocyclic carbenes to transition metals. (strath.ac.uk)
N-Heterocyclic carbenes (NHCs) are an emerging alternative to thiols for the formation of stable self-assembled monolayers (SAMs) on gold. (beilstein-journals.org)
Compounds5
While monodentate phosphine ligands such as triphenylphosphine and tricyclohexylphosphine are most common, bidentate phosphine ligands can also be useful in organoruthenium compounds. (wikipedia.org)
The metal complexes of the compounds had stronger cytotoxic effects and cleaved caspase-3 expression than their ligands. (ijpsonline.com)
Nanoformulated calix[8]arenes functionalized with N -heterocyclic carbene (NHC)-palladium complexes were found to be efficient nano-reactors for Suzuki-Miyaura cross-coupling reactions of water soluble iodo- and bromoaryl compounds with cyclic triol arylborates at low temperature in water without any organic co-solvent. (mdpi.com)
It allowed the preparation of a wide range of heterocyclic biaryl and heterocyclic-heterocyclic biaryl compounds, with a low Pd catalyst loading. (rsc.org)
1994. Anaerobic biodegradation of halogenated and nonhalogenated N -, S -, and other O -heterocyclic compounds in aquifer slurries. (cdc.gov)
Catalysts4
Here, we demonstrate a versatile screening platform for NHC ligand based catalysts by coating fused- silica micro capillaries with a bonded 1,3-bismesityl-2-imidazolidinylidene ligand . (rsc.org)
BINAP, in particular, is a useful asymmetric ligand for many asymmetric ruthenium catalysts. (wikipedia.org)
Thus, it could be possible to develop new, more active catalysts that incorporate the very weakly binding HFB ligands. (chemistryviews.org)
2022. "Molecular Catalysts with Diphosphine Ligands Containing Pendant Amines. (pnnl.gov)
Chemistry4
He remained there to study for a Ph.D developing the coordination chemistry of bidentate antimony containing ligands, graduating in 1975. (southampton.ac.uk)
Bill's research interests are in synthetic inorganic chemistry and include the design and coordination of neutral bi- and multi-dentate ligands containing heavy group 15 and 16 donor atoms (P, As, Sb, Bi, Se and Te), transition metal coordination chemistry, especially in high oxidation states, and metal halide and oxo-halide chemistry. (southampton.ac.uk)
as preprint: "Carbenaporphyrins: A Missing Ligand in N-Heterocyclic Carbene Chemistry", T. Maulbetsch, D. Kunz*, ChemRxiv , 2020 , DOI: 10.26434/chemrxiv.12804032.v2. (uni-tuebingen.de)
Coordination chemistry of bonds between main group elements and electron donating ligands as in L→E (where E is electron acceptor centre like C⁰, Si⁰, N¹, P¹, As¹, B¹ and L is an electron donating N-heterocyclic carbene) have been recently gaining attention. (ias.ac.in)
Carbene complexes1
mixed phosphine/N-heterocyclic carbene complexes of ruthenium of the type Ru(CO)(IR)3-n(PH3)n, where n = 1-3 and R = H (1,3-imidazol-2-ylidene) and R = Me (1,3-dimethylimidazol-2-ylidene) are reported. (bath.ac.uk)
Aminolysis reactions with the mesityl-substituted ligand precursor ((Mes)[NCN]H-2) and M(NMe2)(4) (M = Zr, Hf) provide bis(amido)-NHC-metal complexes that can be further converted to chloro and alkyl derivatives. (ubc.ca)
Nitrogen3
The hydrothermal reactions of CuSO 4 · 5H 2 O, a phosphonate ligand and an appropriate aromatic nitrogen heterocycle yield a series of materials of the Cu(II)/phosphonate/nitrogen ligand donor family. (syr.edu)
of ability of nitrogen-heterocyclic carbene ligands to promote intermol. (bath.ac.uk)
This work introduces a linearly aligned push-pull design principle that reaches from the ligand having nitrogen-based electron donors, over the Fe(ii) centre, to the ligand having an electron withdrawing carboxylic acid anchor group. (lu.se)
Ruthenium5
chloro(cyclopentadienyl)bis(triphenylphosphine)ruthenium pentamethylcyclopentadienyl ruthenium dichloride dimer As with other late transition metals, ruthenium binds more favorably with soft ligands. (wikipedia.org)
The most important ligands for ruthenium are: halides, especially chloride. (wikipedia.org)
The hapticity of the hexamethylbenzene ligand in Ru(C6Me6)2 depends on the oxidation state of the metal centre: The compound Ru(COD)(COT) is capable of dimerizing norbornadiene: Multinuclear organo-ruthenium complexes have been investigated for anti-cancer properties. (wikipedia.org)
Diggle, RA, Macgregor, SA & Whittlesey, MK 2004, ' Ability of N-Heterocyclic Carbene Ligands to Promote Intermolecular Oxidative Addition Reactions at Unsaturated Ruthenium Centers ', Organometallics , vol. 23, no. 8, pp. 1857-1865. (bath.ac.uk)
These two ruthenium(III) complexes have an octahedral geometry and contain four in-plane chlorido ligands as well as one dimethylsulfoxido and one imidazolo (NAMI-A) or two indazolo ligands (KP1019) in trans positions. (hindawi.com)
Catalysis4
NHC ligands can be prepared with precise steric and electronic parameters, and can be chiral for use in asymmetric catalysis. (wikipedia.org)
Highly fluorinated benzenes (HFB) are useful , but underused, solvents and ligands in organic synthesis and catalysis. (chemistryviews.org)
The team found that the complexes are useful in catalysis-even with weakly binding substrates-due to the weakly binding HFB ligand. (chemistryviews.org)
2. Utility of asymmetric amide-based ligand for asymmetric flow catalysis. (caltech.edu)
Synthesis2
The team also demonstrated that the HFB ligands can be readily substituted by other weakly binding ligands such as isobutene, opening up new opportunities in synthesis. (chemistryviews.org)
Saturated N-heterocyclic building blocks or SnAP Reagents are of growing importance for the convenient synthesis of medium-ring saturated N-heterocycles, including bicyclic and spirocyclic structures. (sigmaaldrich.com)
Reactions2
The ligand substitution reactions of hydrophobic vitamin B12 derivatives. (scielo.org.za)
EcoPd was found to have the ideal microstructure to promote complex Suzuki reactions without ligands or additives. (rsc.org)
Derivative1
Their crystal structures are similar and show a protonated amino group on the side chain of the ligand which is not very common for a simple heterocyclic derivative such as histamine. (hindawi.com)
Precursors1
They were prepared from precursors with norbornadiene ligands by hydrogenation. (chemistryviews.org)
Multidentate1
The introduction of chelatization, hemilability, bifunctionality, shielding effects, and chirality-transfer influences the catalyst's stability, reactivity, and selectivity, thus offering access to tailor-made systems including mono- and multidentate uNHC ligands. (tu-berlin.de)
Imidazole1
In this chapter, we will introduce the recent advances of the tetradentate cyclometalated platinum(II) complexes, including pyrazole, N-heterocyclic carbene, imidazole and pyridine-based complexes, molecular design, photophysical properties, and some of their device performances. (intechopen.com)
Artificial protein cavities as specific ligand-binding templates: characterization of an engineered heterocyclic cation-binding site that preserves the evolved specificity of the parent protein. (expasy.org)
Aryl1
The solid-state structure of 5 features an interaction between cobalt and a flanking aryl group of the anilide ligand, resulting in pyramidalization of the cobalt center. (figshare.com)
Triplet2
Engineering molecular ligand shells on quantum dots for quantitative harvesting of triplet excitons generated by singlet fission. (nature.com)
The challenge is to extend the lifetime of a short-lived triplet metal-to-ligand charge transfer (3MLCT) excited state by increasing the complex ligand field and destabilizing a low-lying metal-centered state (MC). (lu.se)
Complex1
In addition, most Au III -NHC complexes have only one or two NHC ligands, with only a single example of an Au(NHC) 4 -type complex to date. (chemistryviews.org)
Steric1
for the C2H6 reaction, and this trend is linked to increased steric bulk of the IMe ligand compared to IH. (bath.ac.uk)
Octahedral1
A new generation of octahedral iron(ii)-N-heterocyclic carbene (NHC) complexes, employing different tridentate C^N^C ligands, has been designed and synthesized as earth-abundant photosensitizers for dye sensitized solar cells (DSSCs) and related solar energy conversion applications. (lu.se)
Strongly2
Frederick, M. T., Amin, V. A. & Weiss, E. A. Optical properties of strongly coupled quantum dot−ligand systems. (nature.com)
Using strongly σ-donating N -heterocyclic carbene (NHC) ligands, the aim is to alter the energy of electronic states in iron complexes, making them potential candidates as photosensitizers in solar cells. (lu.se)
Early transition1
Early transition metal complexes employing a diamido N-heterocyclic carbene (NHC) ligand set (denoted [NCN]) render the centrally disposed NHC moiety stable to dissociation. (ubc.ca)
Emission2
Control of Emission Color with N-Heterocyclic Carbene (NHC) Ligands in" by Valentina A. Krylova, Peter I. Djurovich et al. (carleton.edu)
Variation of the NHC ligand leads to emission colour tuning over 200 nm range from blue to red, and emission efficiencies of 0.16-0.80 in the solid state. (carleton.edu)
Wide range1
A wide range of NHC ligands are commonly available which exhibit high activities. (sigmaaldrich.com)
State2
for L = P( t Bu) 2 (o-biphenyl), the P 3 (C t Bu) 3 ligand is significantly puckered in the solid state. (bris.ac.uk)
for L = P( tBu) 2(o-biphenyl), the P 3(C tBu) 3 ligand is significantly puckered in the solid state. (bris.ac.uk)