TY - JOUR
T1 - Synthesis and characterisation of new pyrazole-phosphinite ligands and their ruthenium(II) arene complexes
AU - Tribó, Rosa
AU - Muñoz, Sergi
AU - Pons, Josefina
AU - Yáñez, Ramón
AU - Álvarez-Larena, Ángel
AU - Piniella, Joan Francesc
AU - Ros, Josep
PY - 2005/9/1
Y1 - 2005/9/1
N2 - The new potentially bidentate pyrazole-phosphinite ligands [(3,5-dimethyl-1H-pyrazol-1-yl)methyl diphenylphosphinite] (L1) and [2-(3,5-dimethyl-1H-pyrazol-1-yl)ethyl diphenylphosphinite] (L2) were synthesised and characterised. The reaction of L1 and L2 with the dimeric complexes [Ru(η6-arene)Cl2] 2 (arene = p-cymene, benzene) led to the formation of neutral complexes [Ru(η6-arene)Cl2(L)] (L = L1, L2) where the pyrazole-phosphinite ligand is κ1-P coordinated to the metal. The subsequent reaction of these complexes with NaBPh4 or NaBF4 produced the [Ru(η6-p- cymene)Cl(L2)][BPh4] and [Ru(η6-benzene) Cl(L2)][BF4] compounds which contain the pyrazole-phosphinite ligand κ2-P,N bonded to ruthenium. All the complexes were fully characterised by analytical and spectroscopic methods. The structure of the complex [Ru(η6-p-cymene)Cl(L 2)][BPh4] was also determined by a X-ray single crystal diffraction study. © 2005 Elsevier B.V. All rights reserved.
AB - The new potentially bidentate pyrazole-phosphinite ligands [(3,5-dimethyl-1H-pyrazol-1-yl)methyl diphenylphosphinite] (L1) and [2-(3,5-dimethyl-1H-pyrazol-1-yl)ethyl diphenylphosphinite] (L2) were synthesised and characterised. The reaction of L1 and L2 with the dimeric complexes [Ru(η6-arene)Cl2] 2 (arene = p-cymene, benzene) led to the formation of neutral complexes [Ru(η6-arene)Cl2(L)] (L = L1, L2) where the pyrazole-phosphinite ligand is κ1-P coordinated to the metal. The subsequent reaction of these complexes with NaBPh4 or NaBF4 produced the [Ru(η6-p- cymene)Cl(L2)][BPh4] and [Ru(η6-benzene) Cl(L2)][BF4] compounds which contain the pyrazole-phosphinite ligand κ2-P,N bonded to ruthenium. All the complexes were fully characterised by analytical and spectroscopic methods. The structure of the complex [Ru(η6-p-cymene)Cl(L 2)][BPh4] was also determined by a X-ray single crystal diffraction study. © 2005 Elsevier B.V. All rights reserved.
KW - Arene ruthenium(II) complexes
KW - Phosphinite
KW - Pyrazole
KW - X-ray structure
U2 - 10.1016/j.jorganchem.2005.05.047
DO - 10.1016/j.jorganchem.2005.05.047
M3 - Article
SN - 0022-328X
VL - 690
SP - 4072
EP - 4079
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
IS - 17
ER -