9 research outputs found
μ-Oxido-bis[hydridotris(trimethylphosphane-κP)iridium(III)](Ir—Ir) bis(tetrafluoridoborate) dihydrate
No full textThe title compound, [Ir2H2O(C3H9P)6](BF4)2·2H2O, was isolated from the reaction between [Ir(COD)(PMe3)3]BF4 and H2 in water (COD is cycloocta-1,5-diene). The asymmetric unit consists of one IrIII atom bonded to three PMe3 groups, one hydride ligand and half an oxide ligand, in addition to a BF4− counter-ion and one water molecule of hydration. The single oxide ligand bridging two IrIII atoms is disordered across an inversion center with each O atom having a 50% site occupancy. Each IrIII atom has three PMe3 groups occupying facial positions, with the half-occupancy O atoms, a hydride ligand and an Ir—Ir bond completing the coordination sphere. The Ir—Ir distance is 2.8614 (12) Å, comparable to other iridium(III) metal–metal bonds. Two water molecules hydrogen bond to two BF4− anions in the unit cell
Aqueous Organometallic Chemistry of <i>mer</i>-Ir(H)<sub>2</sub>(PMe<sub>3</sub>)<sub>3</sub>X Complexes
No full textA series of IrÂ(H)<sub>2</sub>(PMe<sub>3</sub>)<sub>3</sub>X compounds
where X = various anionic ligands has been synthesized. The most studied
of this group with X = Cl has been characterized fully, including
by X-ray crystallography. For X = Cl, PhCO<sub>2</sub><sup>–</sup>, dissolution in water results in the establishment of the equilibrium
IrÂ(H)<sub>2</sub>(PMe<sub>3</sub>)<sub>3</sub>X + H<sub>2</sub>O ⇌
[IrÂ(H)<sub>2</sub>(PMe<sub>3</sub>)<sub>3</sub>(H<sub>2</sub>O)]<sup>+</sup>X<sup>–</sup>, which is responsible for the reaction
of these compounds with unsaturated organic compounds. Reactions between
the dihydrides and alkynes in water as well as the thermodynamics
of the aqueous equilibrium are discussed
Aqueous Organometallic Chemistry of <i>mer</i>-Ir(H)<sub>2</sub>(PMe<sub>3</sub>)<sub>3</sub>X Complexes
No full textA series of IrÂ(H)<sub>2</sub>(PMe<sub>3</sub>)<sub>3</sub>X compounds
where X = various anionic ligands has been synthesized. The most studied
of this group with X = Cl has been characterized fully, including
by X-ray crystallography. For X = Cl, PhCO<sub>2</sub><sup>–</sup>, dissolution in water results in the establishment of the equilibrium
IrÂ(H)<sub>2</sub>(PMe<sub>3</sub>)<sub>3</sub>X + H<sub>2</sub>O ⇌
[IrÂ(H)<sub>2</sub>(PMe<sub>3</sub>)<sub>3</sub>(H<sub>2</sub>O)]<sup>+</sup>X<sup>–</sup>, which is responsible for the reaction
of these compounds with unsaturated organic compounds. Reactions between
the dihydrides and alkynes in water as well as the thermodynamics
of the aqueous equilibrium are discussed
Aqueous Organometallic Chemistry of <i>mer</i>-Ir(H)<sub>2</sub>(PMe<sub>3</sub>)<sub>3</sub>X Complexes
No full textA series of IrÂ(H)<sub>2</sub>(PMe<sub>3</sub>)<sub>3</sub>X compounds
where X = various anionic ligands has been synthesized. The most studied
of this group with X = Cl has been characterized fully, including
by X-ray crystallography. For X = Cl, PhCO<sub>2</sub><sup>–</sup>, dissolution in water results in the establishment of the equilibrium
IrÂ(H)<sub>2</sub>(PMe<sub>3</sub>)<sub>3</sub>X + H<sub>2</sub>O ⇌
[IrÂ(H)<sub>2</sub>(PMe<sub>3</sub>)<sub>3</sub>(H<sub>2</sub>O)]<sup>+</sup>X<sup>–</sup>, which is responsible for the reaction
of these compounds with unsaturated organic compounds. Reactions between
the dihydrides and alkynes in water as well as the thermodynamics
of the aqueous equilibrium are discussed
Reactions of Perfluoroisopropyl Iodide with Cyclopentadienyl−Rhodium Complexes in Methanol. An Unexpected Route to a Rhodium−Fulvalene Complex.
No full text
Ancillary Ligand-Controlled Selectivity for Metal or Cyclopentadienyl Ring Fluoroalkylation in Reactions of Fluoroalkyl Iodides with Cyclopentadienylrhodium Complexes
No full text
