The new Pd-MOP acetyl acetonate complexes [Pd(acac)(10a or 10b)]BF4, 12a,b, were prepared starting from [Pd(acac)(CH3CN)(2)]BF4, whereas [Pd(acac)(11-H)], 13, was obtained directly from Pd(acac)(2) by adding 11. [Ligand 10a, MeO-MOP = (R)-2-(diphenylphosphino)-2'-methoxy-1,1'-binaphthyl; ligand 11, HO-MOP = (R)-2-(diphenylphosphino)-2'-hydroxy-1,1'-binaphthyl]. The solid-state structures for cationic 12a and neutral 13 were determined via X-ray diffraction methods and reveal that both structures contain Pd-C sigma-bonds arising from the MOP naphthyl backbone. In structure 13, the hydroxyl function in 11 has lost a proton to afford a keto-anionic chelating ligand. C-13 NMR studies confirm that the solution structures are the same as those found in the solid state and, for 12, describe how the organic cation distributes the positive charge.

Pd-(MOP) chemistry: Novel bonding modes and interesting charge distribution / P. Dotta, P. Kumar, P. Pregosin, A. Albinati, S. Rizzato. - In: ORGANOMETALLICS. - ISSN 0276-7333. - 22:25(2003), pp. 5345-5349.

Pd-(MOP) chemistry: Novel bonding modes and interesting charge distribution

A. Albinati
Penultimo
;
S. Rizzato
Ultimo
2003

Abstract

The new Pd-MOP acetyl acetonate complexes [Pd(acac)(10a or 10b)]BF4, 12a,b, were prepared starting from [Pd(acac)(CH3CN)(2)]BF4, whereas [Pd(acac)(11-H)], 13, was obtained directly from Pd(acac)(2) by adding 11. [Ligand 10a, MeO-MOP = (R)-2-(diphenylphosphino)-2'-methoxy-1,1'-binaphthyl; ligand 11, HO-MOP = (R)-2-(diphenylphosphino)-2'-hydroxy-1,1'-binaphthyl]. The solid-state structures for cationic 12a and neutral 13 were determined via X-ray diffraction methods and reveal that both structures contain Pd-C sigma-bonds arising from the MOP naphthyl backbone. In structure 13, the hydroxyl function in 11 has lost a proton to afford a keto-anionic chelating ligand. C-13 NMR studies confirm that the solution structures are the same as those found in the solid state and, for 12, describe how the organic cation distributes the positive charge.
Settore CHIM/03 - Chimica Generale e Inorganica
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/191591
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