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- * In the complex [(μ-O){Rh(cod)}(μ-O){Au(PPh)}][BF] (1), the μ-oxo ligand demonstrated enough Lewis basicity to coordinate with another gold species, leading to the formation of a new complex (2).
- * Conversely, when lithium was added to complex 1, it resulted in the elimination of [Au(PPh)] due to theμ-oxo ligand's weak Lewis basicity, suggesting the formation of a pentanuclear species (3) before [Au(PPh)] dissociated.
Article Abstract
The Lewis basicity of a μ-oxo ligand for (μ-O)[Rh(cod)](μ-O)M (cod = 1,5-cyclooctadiene) complexes was controllable by metal species on the μ-oxo ligand locating at the opposite site of the μ-oxo ligand. Coordination of the μ-oxo ligand of [(μ-O){Rh(cod)}(μ-O){Au(PPh)}][BF] (1) to [Au(PPh)] indicated sufficient Lewis basicity of the μ-oxo ligand in 1 to form [{(PhP)Au}(μ-O){Rh(cod)}(μ-O){Au(PPh)}][BF] (2). In contrast, the addition of Li to 1 induced elimination of the originally coordinated [Au(PPh)] due to the weak Lewis basicity of the μ-oxo ligand for (μ-O){Rh(cod)}(μ-O)Li(THF), in which a pentanuclear species, [{(PhP)Au}(μ-O){Rh(cod)}(μ-O){Li(THF)}][BF] (3), was assumed to be generated before the dissociation of [Au(PPh)].
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| http://dx.doi.org/10.1039/d4dt00932k | DOI Listing |
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