Addition of H 2 Across a Cobalt–Phosphorus Bond
Abstract Addition of H 2 across the cobalt–phosphorus bond of (PPP)CoPMe 3 ( 3 ) is demonstrated, where PPP is a monoanionic diphosphine pincer ligand with a central N‐heterocyclic phosphido (NHP − ) donor. The chlorophosphine Co II complex (PP Cl P)CoCl 2 ( 2 ) can be generated through coordination...
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| Published in | Angewandte Chemie Vol. 130; no. 6; pp. 1513 - 1516 |
|---|---|
| Main Authors | , , , , |
| Format | Journal Article |
| Language | English |
| Published |
05.02.2018
|
| Online Access | Get full text |
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| Summary: | Abstract
Addition of H
2
across the cobalt–phosphorus bond of (PPP)CoPMe
3
(
3
) is demonstrated, where PPP is a monoanionic diphosphine pincer ligand with a central N‐heterocyclic phosphido (NHP
−
) donor. The chlorophosphine Co
II
complex (PP
Cl
P)CoCl
2
(
2
) can be generated through coordination of the chlorophosphine ligand (PP
Cl
P,
1
) to CoCl
2
. Subsequent reduction of
2
with KC
8
in the presence of PMe
3
generates (PPP)CoPMe
3
(
3
), in which both the phosphorus and cobalt centers have been reduced. The addition of 1 atm of H
2
to complex
3
cleanly affords (PP
H
P)Co(H)PMe
3
(
4
), in which H
2
has ultimately been added across the metal–phosphorus bond. Complex
4
was characterized spectroscopically and using computational methods to predict its geometry. |
|---|---|
| ISSN: | 0044-8249 1521-3757 |
| DOI: | 10.1002/ange.201710100 |