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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1021/acs.organomet.8b00870
|2 doi
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|a pubmed24n0986.xml
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|a (DE-627)NLM295841575
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|a (NLM)30962670
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Rummelt, Stephan M
|e verfasserin
|4 aut
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|a Oxidative Addition of Dihydrogen, Boron Compounds, and Aryl Halides to a Cobalt(I) Cation Supported by a Strong-Field Pincer Ligand
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|c 2019
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 28.09.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Cationic cobalt(I) dinitrogen complexes with a strong-field tridentate pincer ligand were prepared and the oxidative addition of polar and non-polar bonds was studied. Addition of H2 to [(iPrPNP)Co(N2)]+ (iPrPNP = 2,6-bis((diisopropylphosphaneyl)methyl)pyridine) in THF-d8 resulted in rapid oxidative addition and formation of the cis-Co(III) dihydride complex, cis-[(iPrPNP)Co(H)2L]+ where L = THF or N2. The addition of H2 was reversible as evidenced by the dynamics observed by variable temperature 1H NMR spectroscopy and the regeneration of [(iPrPNP)Co(N2)]+ upon exposure to dinitrogen. In contrast, addition of HBPin, (Pin = pinacolato) B2Pin2 and aryl halides resulted in the formation of net one-electron oxidation products: cationic Co(II)-boryl and Co(II)-halide/aryl complexes, respectively. All products were structurally characterized by X-ray crystallography and the electronic structures were determined by a combination of magnetic moment measurements, EPR spectroscopy and DFT calculations. Monitoring the addition of HBPin to [(iPrPNP)Co(N2)]+ provided evidence for a transient Co(III) oxidative addition product that likely undergoes comproportionation with the cobalt(I) starting material to generate the observed Co(II) products
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|a Journal Article
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1 |
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|a Zhong, Hongyu
|e verfasserin
|4 aut
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1 |
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|a Léonard, Nadia G
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Semproni, Scott P
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chirik, Paul J
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Organometallics
|d 1998
|g 38(2019), 5 vom: 11. März, Seite 1081-1090
|w (DE-627)NLM098167103
|x 0276-7333
|7 nnns
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| 773 |
1 |
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|g volume:38
|g year:2019
|g number:5
|g day:11
|g month:03
|g pages:1081-1090
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| 856 |
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|u http://dx.doi.org/10.1021/acs.organomet.8b00870
|3 Volltext
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|d 38
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|h 1081-1090
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