Title of article :
Synthesis and structural characterization of new piano-stool ruthenium(II) complexes bearing 1-butylimidazole heteroaromatic ligand
Author/Authors :
Tânia S. Morais، نويسنده , , M. Helena Garcia، نويسنده , , M. Paula Robalo، نويسنده , , M.F.M. Piedade، نويسنده , , M. Teresa Duarte، نويسنده , , M. José Villa de Brito، نويسنده , , Paulo J. Amorim Madeira، نويسنده ,
Issue Information :
دوفصلنامه با شماره پیاپی سال 2012
Abstract :
New cationic ruthenium(II) complexes with the formula [Ru(η5-C5H5)(LL)(1-BuIm)] [Z], with (LL) = 2PPh3 or DPPE, and Z = CF3SO3−, PF6−, BPh4−, have been synthesized and fully characterized. Spectroscopic and electrochemical studies revealed that the electronic properties of the coordinated 1-butylimidazole were clearly influenced by the nature of the phosphane coligands (LL) and also by the different counter ions. The solid state structures of the six complexes determined by X-ray crystallographic studies, confirmed the expected distorted three-legged piano stool structure. However the geometry of the 1-butylimidazole ligand was found considerably different in all six compounds, being governed by the stereochemistry of the mono and bidentate coligands (PPh3 or DPPE).
Keywords :
Cyclic voltametry , X-ray crystal structures , Monocyclopentadienyl complexes , 1-Butylimidazole , Ruthenium(II)
Journal title :
Journal of Organometallic Chemistry
Journal title :
Journal of Organometallic Chemistry