Homoleptic and heteroleptic Au(I) complexes containing the new [Co5C(CO)12]- cluster as ligand
| Autor: | Marco Bortoluzzi, Giuliano Longoni, Cristina Femoni, Mohammad Hayatifar, Tiziana Funaioli, Iacopo Ciabatti, Maria Carmela Iapalucci, Stefano Zacchini |
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| Přispěvatelé: | Marco Bortoluzzi, Iacopo Ciabatti, Cristina Femoni, Tiziana Funaioli, Mohammad Hayatifar, Maria Carmela Iapalucci, Giuliano Longoni, Stefano Zacchini |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
STRUCTURAL-CHARACTERIZATION
Aurophilicity metal carbide MOLECULAR STRUCTURE Stereochemistry METAL CLUSTERS homoleptic Electrochemistry Redox Inorganic Chemistry chemistry.chemical_compound Transition metal atoms CHEMISTRY Cluster (physics) Molecule COBALT Lewis acids and bases GOLD Homoleptic cluster Ligand TRANSITION-METAL ATOMS RAY CRYSTAL-STRUCTURES LEWIS-ACIDS Crystallography Gold complexes homoleptic cluster chemistry RAY CRYSTAL-STRUCTURES PLATINUM CARBONYL CLUSTERS TRANSITION-METAL ATOMS CARBIDE CLUSTERS STRUCTURAL-CHARACTERIZATION MOLECULAR-STRUCTURE COBALT SUBGROUP LEWIS-ACIDS GOLD CHEMISTRY PLATINUM CARBONYL CLUSTERS COBALT SUBGROUP Gold complexes MOLECULAR-STRUCTURE CARBIDE CLUSTERS |
| Popis: | The new [{Co5C(CO)(12)}Au{Co(CO)(4)}](-), [1](-), cluster has been obtained from the reaction of [Co6C(CO)(15)](2)(-) with two equivalents of [AuCl4](-). [1](-) reacts with an excess of HBF4 resulting in the formation of [{Co5C(CO)(12)}(2)Au](-), [2](-). The new derivatives [Co5C(CO)(12)(AuPPh3)], 3, and [Co5C(CO)(11)(AuPPh3)(3)], 4, have been obtained by reacting [2](-) with two and four equivalents of [Au(PPh3)Cl], respectively. All the new species have been structurally characterised by means of X-ray crystallography as their [NEt4][1], [NEt4][2], [NMe3(CH2Ph)][2], 3 and 4 center dot thf center dot 0.5C(6)H(14) salts and solvates. [2](-) may be viewed as a homoleptic Au(I) complex containing two [Co5C(CO)(12)](-) clusters as ligands. Similarly, [1](-) and 3 are heteroleptic Au(I) complexes containing one [Co5C(CO)(12)](-) cluster ligand as well as [Co(CO)(4)](-) or PPh3. Conversely, 4 contains the [Co5C(CO)(11)](3)(-) cluster stabilized by three [AuPPh3](+) fragments. [1](-) and [2](-) have been investigated in solution by means of electrochemical and spectroelectrochemical methods, revealing a very rich redox propensity to form the closely related [1](n-) (n = 1-3) and [2](n-) (n = 0-3) species. |
| Databáze: | OpenAIRE |
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