J. Espinas, R. Rahal, E. Abou-Hamad, M. El Eter, J.-M. Basset
of Organometallic Chemistry, volume 784, 103-108, (2015)
Wilkinson complex, Rhodium, Solid-state phosphorous NMR spectroscopy, Surface organometallic chemistry, Titanium dioxide, Well-defined immobilized complex
By exchange of ligands, Wilkinson complex RhCl(PPh3)3 are immobilized on p-aminobenzoate/TiO2 with different organic loading (6, 11 and 16%). This new hybrid material exhibit a linear correlation between the ligand content of the starting TiO2 and the rhodium loading, showing the accessibility of all surfaces amines fonctions on the non-porous parent materials. 1H, 13C, and 1D, 2D INAQUEDATE refocused and J-resolved 31P solid-state NMR confirm the well-defined structure [(≡TiO)2(ɳ2-O2C–C6H4–NH2)RhCl-cis-(PPh3)2]. New immobilized catalysts show interesting activity in cyclohexene hydroformylation.