Synthesis and structural characterisation of tetranuclear palladium–cobalt clusters
Abstract
The reactions between the palladium compounds
[Pd
4
(µ
3
-CH)(µ-Cl)
3
(PBu
t
3
)
4
] or
[Pd
2
(µ-X)
2
(PBu
t
3
)
2
] (X = Br or I) and [Co
2
(CO)
8
]
have led to the novel palladium–cobalt tetranuclear compounds
[CoPd
3
(µ
3
-X)(µ-CO)
3
(µ
3
-CO)(CO)(PBu
t
3
)
3
]
(X = Cl, Br or I). Structural characterisation of one of
them (X = Cl) has shown that the metal cluster geometry is
intermediate between a tetrahedron and a butterfly. A second product
detected in this reaction {and additionally with
[Fe
2
(CO)
9
] and
[Pd
2
(µ-Br)
2
(PBu
t
3
)
2
]} is also reported and has been structurally characterised
as
[Pd
6
(µ-Br)
4
(µ-CO)
4
(PBu
t
3
)
4
] (when X = Br). This
hexanuclear cluster has triangular cluster moieties linked by double
bromide bridges.
Please wait while we load your content...
