Carbonyl substitution of the dicobalt-iron complex (μ3-S)FeCo2(CO)9 with monophosphane or diphosphane ligands
![Carbonyl substitution of the dicobalt-iron complex (μ3-S)FeCo2(CO)9 with monophosphane or diphosphane ligands](/image/eyJ1cmkiOiJ0YW5kZm9ubGluZS5jb20vbmExMDEvaG9tZS9saXRlcmF0dW0vcHVibGlzaGVyL3RhbmRmL2pvdXJuYWxzL2NvbnRlbnQvZ2NvbzIwLzAvZ2NvbzIwLmFoZWFkLW9mLXByaW50LzAwOTU4OTcyLjIwMTcuMTM3Mjc1Mi8yMDE3MDkwNS9pbWFnZXMvbWVkaXVtL2djb29fYV8xMzcyNzUyX3VmMDAwMV9vYy5qcGciLCJmb3JtYXQiOiJ3ZWJwIiwicXVhbGl0eSI6MTAwLCJub0NhY2hlIjp0cnVlfQ==.webp)
Eight new dicobalt-iron clusters have been synthesised and structurally characterized. Treatment of (μ3-S)FeCo2(CO)9 (A) with monophosphane ligands tris(4-fluorophenyl)phosphane, tris(4-methoxyphenyl)phosphane, or tris(2-furyl)phosphane in the presence of Me3NO∙2H2O afforded monosubstituted complexes (μ3-S)FeCo2(CO)8L [L = P(4-C6H4F)3, 1; P(4-C6H4OMe)3, 3; P(2-C4H3O)3, 5] and disubstituted complexes (μ3-S)FeCo2(CO)7L2 [L = P(4-C6H4F)3, 2; P(4-C6H4OMe)3, 4; P(2-C4H3O)3, 6]. Reaction of complex A with Ph2PN[CH(CH3)2]PPh2 in refluxing toluene gave complex (μ3-S)FeCo2(CO)7{Ph2PN[CH(CH3)2]PPh2} (7) with an intramolecular bridging diphosphane ligand. Reaction of complex A with trans-1,2-bis(diphenylphosphino)ethylene (trans-dppv) and Me3NO∙2H2O yielded complex [(μ3-S)FeCo2(CO)8]2(trans-Ph2PCH = CHPPh2) (8) with an intermolecular bridging diphosphane ligand. The new complexes 1–8 were characterized by elemental analysis, IR, 1H NMR, 31P{1H} NMR, and 13C{1H} NMR spectroscopy, particularly for 1, 3, and 6–8 by X-ray crystallography.
Publisher URL: http://www.tandfonline.com/doi/full/10.1080/00958972.2017.1372752
DOI: 10.1080/00958972.2017.1372752
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