Labile Ligand-Substitution Reactions of Intermediate-Spin Six-Coordinate Cobalt(III) Complexes
Three intermediate-spin, six-coordinate Co(III) complexes, [Co(CNCH 2 Ph) 4 {OAs(C 6 H 4 Me-p) 3 } 2 ](BF 4 ) 3 , [Co(CNC 6 H 11 ) 4 (OSbPh 3 ) 2 ](ClO 4 ) 3 , and [Co(CNCH 2 Ph) 4 (OSbPh 3 ) 2 ](BF 4 ) 3 , are shown to undergo labile ligand-substitution reactions with selected trialkylphosphine lig...
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| Published in | Synthesis and reactivity in inorganic and metal-organic chemistry Vol. 34; no. 9; pp. 1543 - 1549 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
Taylor & Francis Group
01.11.2004
|
| Subjects | |
| Online Access | Get full text |
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| Summary: | Three intermediate-spin, six-coordinate Co(III) complexes, [Co(CNCH
2
Ph)
4
{OAs(C
6
H
4
Me-p)
3
}
2
](BF
4
)
3
, [Co(CNC
6
H
11
)
4
(OSbPh
3
)
2
](ClO
4
)
3
, and [Co(CNCH
2
Ph)
4
(OSbPh
3
)
2
](BF
4
)
3
, are shown to undergo labile ligand-substitution reactions with selected trialkylphosphine ligands. Percent yields in reactions of [Co(CNCH
2
Ph)
4
{OAs(C
6
H
4
Me-p)
3
}
2
](BF
4
)
3
increase significantly when reactions are performed at lowered temperatures. [Co(CNC
6
H
11
)
4
(OSbPh
3
)
2
](ClO
4
)
3
and [Co(CNCH
2
Ph)
4
(OSbPh
3
)
2
](BF
4
)
3
react with P(C
3
H
7
-n)
3
and P(C
4
H
9
-n)
3
immediately at 0 °C to produce the known complexes, trans-[Co(CNR)
4
(PR′
3
)
2
]X
3
, in good yields. |
|---|---|
| ISSN: | 0094-5714 1532-2440 |
| DOI: | 10.1081/SIM-200026582 |