Abstract
ABSTRACT Reaction of the dinuclear complex [{Ru(CO) 3 Cl 2 } 2 ] with the ligand 2-(diphenylphosphineoxide)pyridine (PyPOPh 2 ) in ethanol solution gave the neutral mononuclear complex [Ru(k 2 -PyPOPh 2 -N,O)(CO) 2 Cl 2 ]. The complex was characterized by elemental analysis, IR and RMN spectroscopy, and its molecular structure was determined by single-crystal X-ray diffraction. Keywords: Ruthenium, 2-(diphenylphosphineoxide)pyridine complexes, Dicarbonyl complexes, Crystal structure.e-mail: jmvalder@puc.cl INTRODUCTION The unsymmetrical bidentate ligand 2-(diphenylphosphine)pyridine (PyPPh 2 ) shows a N,P-donor set, where the donor atoms can connect two identical or different metal centres. Due to the presence of the pyridyl ring this ligand presents a small flexibility (rigid short-bite ligand) and can be used to stabilize heterobinuclear complexes acting as bridging ligand. 1 Moreover, this compound can also act as a chelating ligand to give four-membered chelate complexes. 2 An example of this behaviour is the reaction of the trinuclear complex [Ru(CO)
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