Toluene-p-sulphonate as a metal–metal bond bridging ligand; the crystal structure of [{Rh<sub>2</sub>(6-methylpyridin-2-olato)<sub>3</sub>(p-MeC<sub>6</sub>H<sub>4</sub>SO<sub>2</sub>O)}<sub>2</sub>]·Et<sub>2</sub>O
作者:William Clegg、Lalarukh Akhter、C. David Garner
DOI:10.1039/c39840000101
日期:——
Toluene-p-sulphonic acid displaces one of the 6-methylpyridin-2-olato (mhp)ligands of[Rh2(mhp)4]; the product dimerises to form [Rh2(mhp)3(p-MeC6H4SO2O)}2],in which each toluene-p-sulphonate ligand bridges a RhâRh bond, as demonstrated by a crystal structure determination.
Optimizing the Electronic Properties of Photoactive Anticancer Oxypyridine-Bridged Dirhodium(II,II) Complexes
作者:Zhanyong Li、Amanda David、Bryan A. Albani、Jean-Philippe Pellois、Claudia Turro、Kim R. Dunbar
DOI:10.1021/ja5078359
日期:2014.12.10
ligands exerting a stronger trans effect. In the case of cis-[Rh2(chp)2(CH3CN)6][BF4]2 (5), light irradiation enhances the production of the aqua adducts in which eq CH3CN is replaced by H2O molecules, whereas the formation of the aqua species for cis-[Rh2(fhp)2(CH3CN)6][BF4]2 (7) is only slightly increased by irradiation. The potential of both compounds to act as photochemotherapy agents was evaluated. A
The reaction of [Rh2(O2CPrn)4] or [Rh2(mhp)4] (Hmhp = 2-hydroxy-6-methylpyridine) with a trialkylchlorosilane followed by crystallization from a nitrile unexpectedly gave [Rh4(O2CPrn)4Cl4(CH3CN)4] 1 or an isomer of [Rh4(mhp)4Cl4(PhCN)2] both with a ‘twisted-cage’ Rh4(µ-Cl)4 core, which were studied by X-ray crystallography, cyclic voltammetry and UV/VIS spectroscopy; 1 catalyzed the hydrogenation of
Crystal structure and u.v. photoelectron spectra of tetrakis-(6-methyl-2-oxopyridinato)dirhodium
作者:Madeline Berry、C. David Garner、Ian H. Hillier、Alistair A. Macdowell、William Clegg
DOI:10.1039/c39800000494
日期:——
Rh2(mhp)4(where Hmhp = 6-methyl-2-hydroxypyridine) has been prepared and characterised by X-ray crystallography and shown to involve a metal–metal separation of 2·359(1)Å; the He I and He II photoelectronspectra of Rh2(mhp)4 provide evidence for the presence of a metal–metal single bond.