Source:http://linkedlifedata.com/resource/pubmed/id/19736909
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
19
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pubmed:dateCreated |
2009-9-28
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pubmed:abstractText |
The syntheses of meridionally ligated tricarbonyl complexes (PNP)Mn(CO)(3) and (PNP)Re(CO)(3) are described (PNP = [2-P(CHMe(2))(2)-4-MeC(6)H(3)](2)N(-)). Cyclic voltammograms show reversible one-electron redox couples for both parent compounds (-0.34 V vs Cp(2)Fe(0/+) for (PNP)Mn(CO)(3), -0.25 V vs Cp(2)Fe(0/+) for (PNP)Re(CO)(3)), and chemical oxidation with AgOTf results in formation of the corresponding paramagnetic triflate salts [(PNP)Mn(CO)(3)]OTf and [(PNP)Re(CO)(3)]OTf. Electron paramagnetic resonance spectra and computational results indicate that this event is primarily ligand centered; allylation of the organic ligand moiety of [(PNP)Mn(CO)(3)]OTf with allyltributylstannane is consistent with this assignment. The oxidation (PNP)Mn(CO)(3) to [(PNP)Mn(CO)(3)]OTf results in a shift in average CO stretching frequency of 30 cm(-1); protonation of (PNP)Mn(CO)(3) with TfOH to form [(PNHP)Mn(CO)(3)]OTf results in a similar magnitude shift.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Ligands,
http://linkedlifedata.com/resource/pubmed/chemical/Manganese,
http://linkedlifedata.com/resource/pubmed/chemical/Oxygen,
http://linkedlifedata.com/resource/pubmed/chemical/Phosphines,
http://linkedlifedata.com/resource/pubmed/chemical/Rhenium,
http://linkedlifedata.com/resource/pubmed/chemical/phosphine
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pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
1520-510X
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:day |
5
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pubmed:volume |
48
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
9214-21
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pubmed:meshHeading |
pubmed-meshheading:19736909-Catalysis,
pubmed-meshheading:19736909-Electrochemistry,
pubmed-meshheading:19736909-Ligands,
pubmed-meshheading:19736909-Manganese,
pubmed-meshheading:19736909-Molecular Structure,
pubmed-meshheading:19736909-Oxidation-Reduction,
pubmed-meshheading:19736909-Oxygen,
pubmed-meshheading:19736909-Phosphines,
pubmed-meshheading:19736909-Photochemistry,
pubmed-meshheading:19736909-Rhenium
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pubmed:year |
2009
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pubmed:articleTitle |
Ligand reactivity in diarylamido/bis(phosphine) PNP complexes of Mn(CO)3 and Re(CO)3.
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pubmed:affiliation |
Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.,
Research Support, Non-U.S. Gov't,
Research Support, N.I.H., Extramural
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