Insertion of a phospholide unit into a metal-metal bond: Synthesis and X-ray structure of [Ru<inf>3</inf>(CO)<inf>9</inf>(μ:η¹: η⁵-PC<inf>4</inf>H<inf>2</inf>Me<inf>2</inf>)(η¹- C<inf>6</inf>H<inf>5</inf>)]

Abstract:

The reaction of [Ru3(CO)12] with 3,4-dimethyl-1- phenylphosphole under mild conditions affords three derivatives which were identified by means of spectroscopic methods as the substitution compounds [Ru3(CO)12-x(PhPC4H 2Me2)x] (x = 1, 2, 3) in which the phosphole ligand acts as a tertiary phosphine bonded through the phosphorus atom. Thermolysis of the monosubstituted [Ru3(CO)11(PhPC 4H2Me2)] in cyclohexane affords two new clusters, characterised as [Ru3(CO)9(μ3: η2:η2:η2-PhPC4H 2Me2)] and [Ru3(CO)9(μ: η1:η5-PC4H2Me 2)(η1-C6H5)], where the phosphole ring behaves as a six- and seven-electron donor ligand respectively. The reaction with [Os3H2(CO)10] gives the new species [Os3(μ-H)(CO)9(μ3: η1:η1:η2-PhPC4H 3Me2)] in which the ligand behaves as a five-electron donor. © 2012 Elsevier B.V. All rights reserved.

Año de publicación:

2012

Keywords:

• Phospholes
• Phospholide
• Triosmium clusters
• Triruthenium clusters

Fuente:

scopus