Synthesis and characterisation of a RuII([14]aneS4) complex immobilised in MCM-41-type mesoporous silica

Electrochemical properties of dinuclear [Ru([n]aneS4)] complexes of 2,3-bis(2-pyridyl)pyrazine

“…FAB spectra were obtained on a Kratos MS80 machine working in positive ion mode, with m-nitrobenzyl alcohol matrix. Complexes [RuCl( [12]aneS 4 )(DMSO)][PF 6 ], [RuCl( [14]-aneS 4 )(DMSO)][PF 6 ], and [RuCl( [16]aneS 4 )(DMSO)][PF 6 ] were synthesised using literature methods. 13 Cyclic voltammograms were recorded using an EG & G model versastat II potentiostat and the EG & G electrochemistry power suite software package.…”

“…15 Even similar isomers may show large structural differences. For example, due to the small binding pocket of the coordinated macrocycle, [Ru( [12]aneS 4 )(bpy)] 2+ (bpy = 2,2bipyridine) displays a highly distorted coordination geometry, 14 whereas the [Ru( [14]aneS 4 )(bpy)] 2+ cation is close to an ideal octahedral structure. 13 Such changes in the coordination sphere of dinuclear ligandbridged metal complexes could alter the extent of orbital overlap between the metal ions and the bridge, thus perturbing electron delocalisation pathways.…”

Synthesis and Reactivity of Ru-, Os-, Rh-, and Ir-Halide−Sulfoxide Complexes

“…275,276 The reaction between 8 and the larger tetradentate macrocycle 1,4,7,10-tetrathiacyclododecane ( [12] 278 ) was structurally characterized by X-ray crystallography as PF 6 -salt, and proved to be a useful starting material for a series of complexes upon replacement of the two monodentate ligands. 277,279 …”

A reusable CuII based metal–organic framework as a catalyst for the oxidation of olefins

“…Many of the mentioned heterogeneous catalysts are solid inorganic species or transition metal complexes immobilized in mesoporous matrices or grafted on surfaces. 9,10 The anchoring of metal species on solid supports not only exhibits improved catalyst stability and selectivity of the product but also enables easy recovery and reuse of the catalyst. 11,12 Since the preparation of heterogeneous catalysts without the need of an organic or inorganic support is still of great need and remains of immense interest, another group of catalysts has been investigated in recent years, metal-organic frameworks (MOFs).…”