Abstract
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. H-1, C-13, and D-1, D-2 INAQUEDATE refocused and J-resolved P-31 solid-state NMR confirm the well-defined structure [(equivalent to TiO)(2)(eta(2)-O2C-C6H4-NH2)RhCl-cis-(PPh3)(2)]. New immobilized catalysts show interesting activity in cyclohexene hydroformylation. (C) 2015 Published by Elsevier B.V.