Immobilization of a cationic ruthenium(II) complex containing the hemilabile phosphaallyl ligand in hexagonal mesoporous silica (HMS) and application of this material as hydrogenation catalyst

Duraczyńska, Dorota; Serwicka, Ewa M.; Waksmundzka-Góra, Anna; Drelinkiewicz, A.; Olejniczak, Zbigniew

doi:10.1016/j.jorganchem.2007.11.032

Cited by 10 publications

(2 citation statements)

References 49 publications

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“…[46] Various attempts towards catalytic applications of the immobilized Wilkinsons catalyst and its analogues have been undertaken previously. [7,[47][48][49][50] Although [RhClA C H T U N G T R E N N U N G (PPh 3 ) 3 ] tethered to the inorganic support has shown high activity and stability during catalytic processes, the structure of the heterogenized catalyst is still under discussion. [51] The immobilization of the catalyst on an inorganic support combines molecular chemistry with surface science and solid-state chemistry.…”

Section: Introductionmentioning

confidence: 99%

Solid‐State NMR Characterization of Wilkinson’s Catalyst Immobilized in Mesoporous SBA‐3 Silica

Grünberg

Breitzke

et al. 2010

Chemistry A European J

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The Wilkinson's catalyst [RhCl(PPh(3))(3)] has been immobilized inside the pores of amine functionalized mesoporous silica material SBA-3 and The structure of the modified silica surface and the immobilized rhodium complex was determined by a combination of different solid-state NMR methods. The successful modification of the silica surface was confirmed by (29)Si CP-MAS NMR experiments. The presence of the T(n) peaks confirms the successful functionalization of the support and shows the way of binding the organic groups to the surface of the mesopores. (31)P-(31)P J-resolved 2D MAS NMR experiments were conducted in order to characterize the binding of the immobilized catalyst to the amine groups of the linkers attached to the silica surface. The pure catalyst exhibits a considerable (31)P-(31)P J-coupling, well resolvable in 2D MAS NMR experiments. This J-coupling was utilized to determine the binding mode of the catalyst to the linkers on the silica surface and the number of triphenylphosphine ligands that are replaced by coordination bonds to the amine groups. From the absence of any resolvable (31)P-(31)P J-coupling in off-magic-angle-spinning experiments, as well as slow-spinning MAS experiments, it is concluded, that two triphenylphosphine ligands are replaced and that the catalyst is bonded to the silica surface through two linker molecules.

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Section: Introductionmentioning

confidence: 99%

Solid‐State NMR Characterization of Wilkinson’s Catalyst Immobilized in Mesoporous SBA‐3 Silica

Grünberg

Breitzke

et al. 2010

Chemistry A European J

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“…HMS is beneficial to catalytic reaction due to its hive or sponge pore structure [7][8][9][10]. Extensive researches have been underway to achieve control over the characteristics of ordered mesoporous silica with special emphasis on pore size and morphology [4,[11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Molecular self-assembly synthesis of nano-sphere of La-containing hexagonal mesoporous solid

Guo¹,

Lai²,

Zhao³

et al. 2009

Journal of Alloys and Compounds

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Schüth¹

2020

Catalysis From a to Z

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Immobilization of a cationic ruthenium(II) complex containing the hemilabile phosphaallyl ligand in hexagonal mesoporous silica (HMS) and application of this material as hydrogenation catalyst

Cited by 10 publications

References 49 publications

Solid‐State NMR Characterization of Wilkinson’s Catalyst Immobilized in Mesoporous SBA‐3 Silica

Solid‐State NMR Characterization of Wilkinson’s Catalyst Immobilized in Mesoporous SBA‐3 Silica

Molecular self-assembly synthesis of nano-sphere of La-containing hexagonal mesoporous solid

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