Cited by Iron-catalysed highly selective hydroalkoxycarbonylation of alkynes using CO as C1 source

Low-Valent Transition Metalate Anions in Synthesis, Small Molecule Activation, and Catalysis DOI

Vanessa R. Landaeta, Thomas M. Horsley Downie, Robert Wolf

et al.

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(4), P. 1323 - 1463

Published: Feb. 14, 2024

This review surveys the synthesis and reactivity of low-oxidation state metalate anions d-block elements, with an emphasis on contributions reported between 2006 2022. Although field has a long rich history, chemistry transition been greatly enhanced in last 15 years by application advanced concepts complex ligand design. In recent years, potential highly reactive complexes fields small molecule activation homogeneous catalysis become increasingly evident. Consequently, exciting applications have developed, including catalytic transformations. article intends to guide reader through fascinating world low-valent metalates. The first part describes metalates stabilized assortment frameworks, carbonyls, isocyanides, alkenes polyarenes, phosphines phosphorus heterocycles, amides, redox-active nitrogen-based ligands. Thereby, will be familiarized impact different types physical chemical properties addition, ion-pairing interactions metal–metal bonding may dramatic influence structures reactivities. ramifications these effects are examined separate section. second is devoted toward inorganic molecules such as H2, N2, CO, CO2, P4 related species. It shown that use electron-rich translates into impressive hydrogenation organic reduction CO2. results discussed this illustrate being tapped for challenging processes relevance energy conversion. Therefore, it hoped serve useful resource inspire further developments dynamic research field.

Language: Английский

Citations

Redox‐active BIAN‐based Diimine Ligands in Metal‐Catalyzed Small Molecule Syntheses** DOI

Josef Bernauer,

Jennifer Pölker,

Axel Jacobi von Wangelin

et al.

ChemCatChem, Journal Year: 2021, Volume and Issue: 14(1)

Published: Sept. 28, 2021

α-Diimine ligands have significantly shaped the coordination chemistry of most transition metal complexes. Among them, bis(imino)acenaphthene (BIANs) recently been matured to great versatility and applicability catalytic reactions. Besides variations ligand periphery, BIAN resides within their ability undergo facile electronic manipulations. This review highlights key aspects in complexes summarizes recent contributions metal-BIAN catalysts syntheses small functionalized organic molecules.

Language: Английский

Citations

Advances in the chemistry of redox-active bis(imino)acenaphthenes (BIAN): A case of transition metal complexes DOI

Iakov S. Fomenko⧫, N. F. Romashev, Artem L. Gushchin

et al.

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 514, P. 215845 - 215845

Published: May 9, 2024

Language: Английский

Citations

Effects of Bis(imino)acenaphthene (Bian)-Derived Ligands on the Cytotoxicity, DNA Interactions, and Redox Activity of Palladium(II) Bipyridine Complexes DOI

V. I. Komlyagina,

N. F. Romashev, Victoria K. Besprozvannykh

et al.

Inorganic Chemistry, Journal Year: 2023, Volume and Issue: 62(29), P. 11541 - 11553

Published: July 7, 2023

A series of heteroleptic bipyridine Pd(II) complexes based on 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene (dpp-Bian) or 1,2-bis[(2,4,6-trimethylphenyl)imino]acenaphthene (tmp-Bian) were prepared. All fully characterized by spectrochemical methods, and their crystal structures confirmed X-ray diffraction analysis. The 72 h stability with Bian ligands under physiological conditions was investigated using 1H NMR spectroscopy. anticancer activity all assessed in a panel cancer cell lines comparison uncoordinated clinically used drugs cisplatin doxorubicin. ability the to bind DNA several including EtBr replacement assay, density functional theory calculations, circular dichroism spectroscopy, gel electrophoresis, TUNEL assay. electrochemical studied cyclic voltammetry, reactive oxygen species production cells confocal microscopy. Heteroleptic PdII-Bian cytotoxic low micromolar concentration range showed some selectivity toward noncancerous MRC-5 lung fibroblasts.

Language: Английский

Citations

Cobalt-Catalyzed Alkylation of Nitriles with Alcohols DOI

Arpita Singh, Michael Findlater

Organometallics, Journal Year: 2022, Volume and Issue: 41(22), P. 3145 - 3151

Published: Feb. 17, 2022

Herein, we report an operationally convenient, cobalt-catalyzed alkylation of aryl nitriles employing primary and secondary alcohols (>30 examples, up to 86% yield). The use readily available cobalt precursors the widely employed BIAN (BIAN = bis(arylimino)acenaphthene) ligand affords efficient catalytic reaction that is environmentally benign, leading formation water as only byproduct.

Language: Английский

Citations

Novel Copper(II) Complexes with BIAN Ligands: Synthesis, Structure and Catalytic Properties of the Oxidation of Isopropylbenzene DOI

Iakov S. Fomenko⧫, O. S. Koshcheeva, Н. И. Кузнецова

et al.

Catalysts, Journal Year: 2023, Volume and Issue: 13(5), P. 849 - 849

Published: May 8, 2023

Two new isomeric complexes [CuBr2(R-bian)] (R = 4-Me-Ph (1), 2-Me-Ph (2)) were obtained by reacting copper(II) bromide with 1,2-bis[(2-methylphenyl)imino]acenaphthene ligands and characterized. The crystal structure of 2 was determined X-ray diffraction analysis. copper atom has a distorted square-planar environment; the ω angle between CuN2 CuBr2 planes is 37.004°. calculated parameters for optimized structures 1 76.002° 43.949°, indicating significant deviations from ideal tetrahedral square-plane geometries, respectively. Molecules form dimers due to non-covalent Cu···Br contacts, which analyzed DFT calculations. also characterized cyclic voltammetry UV-Vis spectroscopy. A quasi-reversible Cu(II)/Cu(I) redox event E1/2 potentials 0.81 0.66 V (vs. SHE) found 2, electronic absorption spectra showed presence Cu(I) species as result partial reduction in acetonitrile solution. Both tested homogenous catalysts oxidation isopropylbenzene (IPB) at low temperatures. Differences mechanism catalytic reaction composition products depending on oxidizing ability catalyst revealed.

Language: Английский

Citations

Iridium Complexes with BIAN-Type Ligands: Synthesis, Structure and Redox Chemistry DOI

N. F. Romashev, I. V. Bakaev,

V. I. Komlyagina

et al.

International Journal of Molecular Sciences, Journal Year: 2023, Volume and Issue: 24(13), P. 10457 - 10457

Published: June 21, 2023

A series of iridium complexes with bis(diisopropylphenyl)iminoacenaphtene (dpp-bian) ligands, [Ir(cod)(dpp-bian)Cl] (1), [Ir(cod)(NO)(dpp-bian)](BF4)2 (2) and [Ir(cod)(dpp-bian)](BF4) (3), were prepared characterized by spectroscopic techniques, elemental analysis, X-ray diffraction analysis cyclic voltammetry (CV). The structures 1-3 feature a square planar backbone consisting two C = π-bonds 1,5-cyclooctadiene (cod) nitrogen atoms dpp-bian supplemented chloride ion (for 1) or NO group 2) to complete square-pyramidal geometry. In the nitrosyl complex 2, Ir-N-O has bent geometry (the angle is 125°). CV data for 1 3 show reversible waves between 0 -1.6 V (vs. Ag/AgCl). Reversible oxidation was also found at E1/2 0.60 1. Magnetochemical measurements 2 in range from 1.77 300 K revealed an increase magnetic moment increasing temperature up 1.2 μB (at K). Nitrosyl unstable solution loses its yield (3). paramagnetic complex, [Ir(cod)(dpp-bian)](BF4)2 (4), detected as result decomposition. EPR spectrum 4 CH2Cl2 described spin Hamiltonian Ĥ gβHŜ S 1/2 gxx gyy 2.393 gzz 1.88, which are characteristic low-spin 5d7-Ir(II) state. DFT calculations carried out order rationalize experimental results.

Language: Английский

Citations

An Interactive Exploration of the Societal Impacts of Inorganic Chemistry─A Base Metal View on Sustainable Catalysis DOI

Marissa L. Clapson, Emma C. Davy, Connor S. Durfy

et al.

Journal of Chemical Education, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 10, 2025

Language: Английский

Citations

Cadmium Complexes—A Novel Family in the Coordination Chemistry of 1,2-bis(arylimino)acenaphthenes DOI

Egor V. Chekhov,

I. V. Bakaev,

Alisa K. Gukova

et al.

Inorganics, Journal Year: 2025, Volume and Issue: 13(5), P. 145 - 145

Published: May 2, 2025

This work presents the synthesis routes for first representatives of cadmium complexes based on 1,2-bis(arylimino)acenaphthene (Ar-bian). The reaction CdCl2 with bis-(2,4,6-trimethylphenylimino)acenaphthene (tmp-bian) in a 1-to-1 molar ratio led to dimeric complex [Cd2(tmp-bian)2Cl2(µ-Cl)2] (1). Further treatment 1 silver triflate as chloride-eliminating agent, followed by addition one equivalent tmp-bian, resulted formation mixture consisting [Cd2(tmp-bian)2(H2O)4(µ-Cl)2](OTf)2 (2) and [Cd(tmp-bian)2(OTf)2] (3). To obtain 3 its individual form, Cd(OTf)2 two equivalents tmp-bian was carried out. characterization conducted through range analytical methods, including X-ray diffraction analysis, elemental well IR 1H NMR-spectroscopies. Redox properties were investigated means cyclic voltammetry. Cyclic voltammograms revealed irreversible reduction processes centered ligand, which confirmed quantum chemical calculations.

Language: Английский

Citations

Palladium(II) Coordination Compound Based on 2-Monophenylhydrazinoacenaphthene-1-One: Synthesis, Structure, and Properties DOI

Alisa K. Gukova,

V. I. Komlyagina,

I. V. Bakaev

et al.

Journal of Structural Chemistry, Journal Year: 2025, Volume and Issue: 66(4), P. 868 - 876

Published: April 1, 2025

Language: Английский

Citations