title: Hydroxymethylpyridine containing half-sandwich complexes of Rh(III), Ir(III) or Ru(II).
abstract: Complexes of the formula [(η(n)-ring)M(NOH){(R)-P1}][SbF6]2 ((η(n)-ring)M = (η(5)-C5Me5)Rh, (η(5)-C5Me5)Ir, (η(6)-p-MeC6H4iPr)Ru; NOH = hydroxymethylpyridine ligand; {(R)-P1} = (R)-monophos) have been prepared from the corresponding dimers [{(η(n)-ring)MCl}2(μ-Cl)2] through routes involving [(η(5)-C5Me5)RhCl2{(R)-P1}] or [(η(n)-ring)MCl(NOH)][SbF6] intermediates. The new complexes have been characterized by analytical and spectroscopic means, including the determination of the crystal structures of [(η(5)-C5Me5)IrCl2{(R)-P1}] (1b), [(η(6)-p-MeC6H4iPr)RuCl(NOH-1)][SbF6] (2c), [(η(5)-C5Me5)IrCl{(R)-NOH-2}][SbF6] ((R)-3b), [(η(5)-C5Me5)Rh(NOH-1){(R)-P1}][SbF6]2 (4a) and [(η(6)-p-MeC6H4iPr)Ru{(R)-NOH-2}{(S)-P1}][SbF6]2 ((R)-5c') by X-ray diffractometric methods. From NMR and X-ray data, the absolute configuration of the new chiral compounds was established.
authors.affiliation: Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC - Universidad de Zaragoza, Departamento de Química Inorgánica, Pedro Cerbuna 12, 50009 Zaragoza, Spain. dcarmona@unizar.es plamata@unizar.es.
authors.forename: Daniel
authors.initials: D
authors.lastname: Carmona
authors.forename: Pilar
authors.initials: P
authors.lastname: Lamata
authors.forename: Antonio
authors.initials: A
authors.lastname: Sánchez
authors.forename: Pilar
authors.initials: P
authors.lastname: Pardo
authors.forename: Ricardo
authors.initials: R
authors.lastname: Rodríguez
authors.forename: Paola
authors.initials: P
authors.lastname: Ramírez
authors.forename: Fernando J
authors.initials: FJ
authors.lastname: Lahoz
authors.forename: Pilar
authors.initials: P
authors.lastname: García-Orduña
authors.forename: Luis A
authors.initials: LA
authors.lastname: Oro