نتایج جستجو برای: heterocyclic ligand

تعداد نتایج: 116213  

Journal: :Dalton transactions 2007
Tetsuaki Fujihara Yasushi Obora Makoto Tokunaga Yasushi Tsuji

Rh(III) complexes with a bidentate N-heterocyclic carbene ligand bearing flexible dendritic frameworks have been synthesized and fully characterized by X-ray crystallographic analysis, NMR measurements and theoretical calculations.

Journal: :Chemical communications 2007
Sébastien Richeter Aurélie Hadj-Aïssa Céline Taffin Arie van der Lee Dominique Leclercq

The functionalisation of two neighboring beta-pyrrolic positions of a porphyrin by a fused N-heterocyclic carbene ligand, the subsequent metallation of this external coordination site by palladium(II) and the structural characterisation of the resulting compounds are presented.

Journal: :Chemical communications 2009
Ulrich Siemeling Christian Färber Clemens Bruhn

A stable six-membered N-heterocyclic carbene with a redox-active ferrocene-based backbone was prepared, characterised by X-ray crystallography and utilised as a ligand for the preparation of expected and unexpected metal complexes.

Journal: :Chemical communications 2008
Juan Urbano A Jesús Hormigo Pierre de Frémont Steven P Nolan M Mar Díaz-Requejo Pedro J Pérez

Styrene can be polymerized at room temperature in the presence of equimolar mixtures of the gold(III) complexes (NHC)AuBr3 (NHC = N-heterocyclic carbene ligand) and NaBAr'4, in the first example of a gold-induced olefin polymerization reaction.

Journal: :Chemical communications 2007
Heather A Spinney Ilia Korobkov Darrin S Richeson

A 1,8-bis(alkylamido)naphthalene framework has been applied to the construction of N-heterocyclic arsenium and stibenium cations; a novel synthetic route, involving protonation of an ancillary amido ligand, was used to generate the base-stabilized stibenium cation.

Journal: :International Journal of Pharmaceutical Chemistry 2012

Journal: :Oriental journal of chemistry 2023

This is a report of the studies conducted on synthesis, spectral, biological viz. antibacterial and antitumorous activities some Copper complexes synthesized from multidentate thiosemicarbazone ligand, HL2. based reaction between secondary amine viz.N-phenyl piperazine an N-substituted heterocyclic ketone 2-Benzoylpyridine. The ligand exhibits mode coordination through N,N,S donor atoms in copp...

Journal: :Chemical & pharmaceutical bulletin 2012
Masami Kuriyama

Effective methods of ligand design have been highly sought due to the significant roles of ligands in controlling metal catalyses. In particular, easy-to-handle ligands to realize high reaction efficacy, substrate tolerance, and environmental friendliness are desirable. Novel bidentate ligands containing N-heterocyclic carbene and thioether moieties were developed based on findings of hemilabil...

Journal: :Dalton transactions 2015
Ginger E Tyson Kenan Tokmic Casey S Oian Daniel Rabinovich Henry U Valle T Keith Hollis John T Kelly Kristina A Cuellar Louis E McNamara Nathan I Hammer Charles Edwin Webster Allen G Oliver Min Zhang

Treatment of 1,3-bis(3'-butylimidazolyl-1'-yl)benzene diiodide with elemental sulfur in the presence of a base produced a bis(N-heterocyclic thione) (NHT) pincer ligand precursor. Its reaction with PdCl2(CH3CN)2 produced chloro[1,3-bis(3'-butylimidazole-2'-thione-κ-S)benzene-κ-C]palladium(ii), a 6,6-fused ring SCS-NHT palladium pincer complex. This air stable compound is, to our knowledge, the ...

Journal: :Chemical communications 2015
Manuel Iglesias Amaia Iturmendi Pablo J Sanz Miguel Victor Polo Jesús J Pérez-Torrente Luis A Oro

A new PCP-type ligand based on an N-heterocyclic olefin (NHO) scaffold has been prepared. The flexibility of this ligand, which is able to adopt facial coordination modes in Ir(I) or meridional in Ir(III) complexes, can be attributed to the dual nature (ylide-olefin) of the NHO scaffold. This results in a rare case of olefin "slippage" that is supported by X-ray crystallography and DFT calculat...

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