Synthesis, Reactivity, X‐ray Crystal Structures and Electrochemical Behaviour of Water‐Soluble [Tris(pyrazolyl)borato]ruthenium(II) Complexes of 1,3,5‐Triaza‐7‐phosphaadamantane (PTA)
2007; Wiley; Volume: 2007; Issue: 35 Linguagem: Inglês
10.1002/ejic.200700672
ISSN1099-0682
AutoresS. Bolaño, Jorge Bravo, Jesús Castro, M.M. Rodriguez-Rocha, M. Fátima C. Guedes da Silva, Armando J. L. Pombeiro, Luca Gonsalvi, Maurizio Peruzzini,
Tópico(s)Lanthanide and Transition Metal Complexes
ResumoAbstract A series of chloridoruthenium(II) complexes bearing the tripodal ligand tris(pyrazolyl)borate (Tp), the water‐soluble cage phosphane 1,3,5‐triaza‐7‐phosphaadamantane (PTA) and its N ‐boranyl adduct PTA(BH 3 ), together with PPh 3 , have been synthesised. The corresponding monohydrido complexes have also been obtained by treating the chlorides withNaOMe. The X‐ray crystal structures of [TpRuCl(PTA)(PPh 3 )] ( 2 ) and [TpRuCl(PTA) 2 ] ( 3 ) are also described. Cyclic voltammetry (CV) studies in MeCN and dmso generally show reversible Ru II/III oxidation waves and the values of E 1/2 ox reflect the electron‐donating character of the ligands [Tp (each arm) > PTA > PTA(BH 3 )], whose Lever electrochemical parameter ( E L ) has been estimated for the first time.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
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