Carbonylmetalate-induced phosphorus migration and Ph[sub 2]PCH[sub 2]PPh[sub 2]- (dppm-) assisted synthesis of bimetallic complexes and clusters of Pd and Pt with Mo, W, Mn, and Co
- Universite Louis Pasteur, Strasbourg (France)
The new triangular clusters [PtCo[sub 2](CO)[sub 7]([mu]-dppm)] (1), [PtMo[sub 2]Cp[sub 2](CO)[sub 5]([mu]-dppm)] (2), and [PtW[sub 2]Cp[sub 2](CO)[sub 5]([mu]-dppm)] (3) were obtained from the reactions of [PtCl[sub 2]([eta][sup 2]-dppm)] with 2 equiv of the carbonylmetalates [Co(CO)[sub 4]][sup [minus]], [Mo(CO)[sub 3]Cp][sup [minus]], or [W(CO)[sub 3]Cp][sup [minus]], respectively. In the case of [Mn(CO)[sub 5]][sup [minus]] and depending on the stoichiometry used, the bimetallic [([eta][sup 2]-dppm)PtCl[l brace]Mn(CO)[sub 5][r brace]] (4) or the trinuclear chain [(OC)[sub 5]Mn[ovr Pt(CO)([mu]-dppm)M]n(CO)[sub 4]] (5) were obtained instead. Clusters 2 and 3 react reversibly with CO to give respectively the chain complexes [Cp(OC)[sub 3]Mo[ovr Pt(CO)([mu]-dppm)M]o(CO)[sub 2]Cp] (6) and [Cp(OC)[sub 3]W[ovr Pt(CO)([mu]-dppm)W](CO)[sub 2]Cp] (7), analogous to 5. Cluster 1 undergoes CO substitution by dppm to give [PtCo[sub 2](CO)[sub 5]([mu]-dppm)[sub 2]] (8) in which the Pt-Co bonds are bridged by dppm ligands. Alternate methods of synthesis for the above compounds were found. On the basis of these results, the influence of the nature of the d[sup 8] metal (Pd or Pt), of the carboxymetalates, and of the dppm stoichiometry of the products is discussed. 35 refs.
- OSTI ID:
- 6298980
- Journal Information:
- Inorganic Chemistry; (United States), Journal Name: Inorganic Chemistry; (United States) Vol. 32:9; ISSN 0020-1669; ISSN INOCAJ
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400201* -- Chemical & Physicochemical Properties
ANIONS
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CARBONYLS
CHALCOGENIDES
CHARGED PARTICLES
CHEMICAL PREPARATION
COBALT COMPLEXES
COMPLEXES
IONS
LIGANDS
MANGANESE COMPLEXES
MOLYBDENUM COMPLEXES
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PALLADIUM COMPLEXES
PHOSPHINES
PHOSPHORUS COMPOUNDS
PLATINUM COMPLEXES
STOICHIOMETRY
SYNTHESIS
TRANSITION ELEMENT COMPLEXES
TUNGSTEN COMPLEXES