Results 191 to 200 of about 18,776 (234)

Cytotoxicity of piano‐stool ruthenium cyclopentadienyl complexes bearing different imidato ligands

Applied Organometallic Chemistry, 2022
AbstractIn these studies, we investigated a cytotoxic and genotoxic potential of four ruthenium cyclopentadienyl complexes bearing different imidato ligands: (η5‐cyclopentadienyl)Ru (CO)2(η1‐N‐maleimidato) (1), (η5‐cyclopentadienyl)Ru (CO)2‐N‐methoxysuccinimidato (2), (η5‐cyclopentadienyl)Ru (CO)2‐N‐ethoxysuccinimidato (3), and (η5‐cyclopentadienyl)Ru (
Michał Juszczak, Magdalena Kluska, Aneta Kosińska, Marcin Palusiak, Agnieszka J. Rybarczyk‐Pirek, Kinga Wzgarda‐Raj, Bogna Rudolf, Katarzyna Woźniak   +7 more
openaire   +1 more source

Insights into Formate Oxidation by a Series of Cobalt Piano-Stool Complexes Supported by Bis(phosphino)amine Ligands.

Inorganic Chemistry, 2021
A series of (cyclopentadienyl)cobalt(III) half-sandwich complexes (1-4) supported by bidentate bis(phosphino)amine ligands was synthesized and characterized by NMR spectroscopy, X-ray crystallography, and cyclic voltammetry. The CoIII-hydride complex 4-H
Andrew W. Cook, T. Emge, Kate M. Waldie
semanticscholar   +1 more source

Binding of piano‐stool Ru(II) complexes to DNA; QM/MM study

Journal of Computational Chemistry, 2012
AbstractRu(II) “piano‐stool” complexes belong to group of biologically active metallocomplexes with promising anticancer activity. In this study, we investigate the reaction mechanism of [(η6‐benzene)Ru(II)(en)(H2O)]2+(en = ethylenediamine) complex binding to DNA by hybrid QM/MM computational techniques.
Zdeněk Futera, J. Platts, J. Burda
semanticscholar   +3 more sources

Iron piano-stool phosphine complexes for catalytic hydrosilylation reaction

Inorganica Chimica Acta, 2012
Abstract A family of six cyclopentadienyl–iron carbonyl complexes bearing phosphine ligands (PPh3, PMe2Ph and PCy3) with iodide or PF6 as a counter-anion were prepared and used as catalysts for the hydrosilylation of carbonyl derivatives. Aldehydes were reduced at 30 °C, using PMHS as the silane, whereas ketones were reduced at 70 °C using PhSiH3.
Zheng, Jianxia, Misal Castro, Luis C, Roisnel, Thierry, Darcel, Christophe, Sortais, Jean-Baptiste   +4 more
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Organometallic Chirality Sensing via "Click"-like η6-Arene Coordination with an Achiral Cp*Ru(II) Piano Stool Complex.

Angewandte Chemie
Piano stool complexes have been studied over many years and found widespread applications in organic synthesis, catalysis, materials and drug development.
E. Nelson, Jeffery A. Bertke, F. Y. Thanzeel, Christian Wolf   +3 more
semanticscholar   +1 more source

Reaction mechanism of Ru(II) piano‐stool complexes: Umbrella sampling QM/MM MD study

Journal of Computational Chemistry, 2014
Biologically relevant interactions of piano‐stool ruthenium(II) complexes with ds‐DNA are studied in this article by hybrid quantum mechanics—molecular mechanics (QM/MM) computational technique. The whole reaction mechanism is divided into three phases: (i) hydration of the [RuII(η6‐benzene)(en)Cl]+complex, (ii) monoadduct formation between the ...
Zdeněk Futera, J. Burda
semanticscholar   +3 more sources

Piano-stool (pentamethylcyclopentadienyl)iron complexes: syntheses and simple coordination chemistry

Organometallics, 1984
Preparation de (Fp'CO) + PF 6 − (Fp'=(η 5 -C 5 Me 5 ) Fe(CO) 2 ) et de (Fp'S) + PF 6 − (s=solvant).
Daniel Catheline, Didier Astruc
openaire   +1 more source

Trispyrazolylmethane piano stool complexes of iron(II) and cobalt(II)

Inorganica Chimica Acta, 2006
A series of cationic trispyrazolylmethane complexes of the general form [Tm R M(CH 3 CN) 3 ] 2+ (Tm = tris(pyrazolyl)methane, 1 , R = 3,5-Me 2 , M = Fe(II); 2 , R = 3-Ph, M = Fe(II); 3 , R = 3,5-Me 2 , M = Co(II); 4 , R = 3-Ph, M = Co(II)) with ‘piano-stool’ structures was prepared by the reaction of the N 3 tripodal ligands (Tm R )with [(CH 3 CN)
Peter G. Edwards, Andrew Harrison, Paul D. Newman, Wenjian Zhang   +3 more
openaire   +1 more source

One-electron electrochemistry of parent piano-stool complexes

Coordination Chemistry Reviews, 2013
Abstract Whereas the oxidation of ferrocene and other sandwich complexes has been widely utilized in both chemistry and biochemistry, the one-electron chemistry of half-sandwich complexes is still underdeveloped. Here we review the known electrochemistry of the “parent” half-sandwich complexes containing only carbonyl groups and one planar ...
openaire   +1 more source

Geometric distortions in four-legged piano-stool cyclopentadienyl transition-metal complexes

Organometallics, 1993
Ab initio calculations with effective core potentials are used to obtain structural parameters of “four-legged piano-stool” (also viewed as pseudo-square-pyramidal) cyclopentadienyl transition-metal complexes, CpML4−nL′n (n = 0–3), where M = Ru, Os, Rh, and Ir, and L, L′ = PH3, CO, H, SiH3, Cl, Li, and Be.
Lin, Zhenyang, Hall, Michael B.
openaire   +2 more sources