Precursor Transformation during Molecular Oxidation Catalysis with Organometallic Iridium Complexes

Autor: Alexander R. Parent, Daniel H. Ess, Patrick H. Vaccaro, David T. Richens, Gary W. Brudvig, Robert H. Crabtree, Stafford W. Sheehan, Ulrich Hintermair

Publikováno v: Hintermair, U, Sheehan, S W, Parent, A R, Ess, D H, Richens, D T, Vaccaro, P H, Brudvig, G W & Crabtree, R H 2013, ' Precursor transformation during molecular oxidation catalysis with organometallic iridium complexes ', Journal of the American Chemical Society, vol. 135, no. 29, pp. 10837-10851 . https://doi.org/10.1021/ja4048762

We present evidence for Cp* being a sacrificial placeholder ligand in the [Cp*Ir(III)(chelate)X] series of homogeneous oxidation catalysts. UV-vis and (1)H NMR profiles as well as MALDI-MS data show a rapid and irreversible loss of the Cp* ligand und

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2671d433a122aa1faa3f38e12d2d6b8b
https://doi.org/10.1021/ja4048762

Low temperature reaction of [Fe(TPA)(CH3CN)2]2+ with excess 3-chloroperoxybenzoic acid in semi-frozen acetonitrile; EPR detection of an acylperoxo iron(III) adduct

Autor: Andrew M. Harkins, Gregorio Guisado-Barrios, Yiteng Zhang, David T. Richens

Publikováno v: Inorganic Chemistry Communications. 20:81-85

Treatment of [(TPA)FeII(CH3CN)2]2+ (TPA = tris(2-pyridylmethyl)amine) with excess (≥ 2 Eq) of 3-chloroperoxybenzoic acid (mCPBA) in semi-frozen acetonitrile in liquid N2 vapour generates a rhombic EPR signal assigned to the S = ½ low spin acylpero

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e43f5a3010ba0a9e849b1edade6a6fb8
https://doi.org/10.1016/j.inoche.2012.02.022

RuO2–TiO2 mixed oxides prepared from the hydrolysis of the metal alkoxides

Autor: Julian R. Osman, David T. Richens, Allin Sidney Pratt, Joe A. Crayston

Publikováno v: Materials Chemistry and Physics. 110:256-262

The hydrolysis of ruthenium alkoxide/titanium tetraethoxide mixtures to gels and powders containing 30–40 mol% Ru was investigated. Basic or neutral conditions led to powders consisting of 2–10 nm diameter crystalline RuO 2 nanoparticles embedded

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2417bf1a22e50f39680779438ad78a93
https://doi.org/10.1016/j.matchemphys.2008.02.003

High spin d5 complexes of tris(6-hydroxymethyl-2-pyridylmethyl)amine (H3L): hepta-coordinated [Mn(H3L)]Cl2and linear trinuclear [Fe3L2](ClO4)3

Autor: David T. Richens, Yang Li, Euan K. Brechin, Gregorio Guisado-Barrios, Alexandra M. Z. Slawin, Ian A. Gass, Paul R. Murray, Lesley J. Yellowlees

Publikováno v: Dalton Trans.. :551-558

Reaction of MnCl(2).4H(2)O with H(3)L (H(3)L = tris(6-hydroxymethyl-2-pyridylmethyl)amine) in methanol gives hepta-coordinated [Mn(H(3)L)]Cl(2) involving attachment of Mn(II) to all four nitrogens and three hydroxymethyl arms. Reaction of H(3)L with

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b967ad9156f5a46d80a375f397b4f60
https://doi.org/10.1039/b712188a

Combined Experimental and Theoretical Approach to the Study of Structure and Dynamics of the Most Inert Aqua Ion [Ir(H2O)6]3+ in Aqueous Solution

Autor: Rafael R. Pappalardo, Francisco Torrico, Flora Carrera, José M. Martínez, David T. Richens, Adela Muñoz-Páez, Enrique Sánchez Marcos

Publikováno v: The Journal of Physical Chemistry B. 111:8223-8233

Quantitative determination of the hydration structure of hexaaquairidium(III), [Ir(H2O)6]3+, in aqueous solution, the most inert aqua ion known, has been achieved for the first time by a combined experimental-theoretical approach employing X-ray abso

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb0d20fc14b24cf9a0992476c2774d65
https://doi.org/10.1021/jp0713716