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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
5952
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pubmed:dateCreated |
2009-11-10
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pubmed:abstractText |
Compared with the enormous arsenal of catalysts used to produce organic compounds, complementary species that are able to mediate sophisticated organometallic transformations are virtually nonexistent. We found that stable N-heterocyclic carbenes (NHCs) can mediate unusual organometallic transformations in solution at room temperature. Depending on the choice of NHC initiator, stoichiometric or catalytic reactions of bis(cyclooctatetraene)iron [Fe(COT)2] ensue. The stoichiometric reaction leads to the isolation of a previously unknown mixed-valent species, featuring distinct and directly bonded Fe(0) and Fe(I) centers. In the catalytic process, three iron atoms are fused to afford the tri-iron cluster Fe3(COT)3, which is a hydrocarbon analog of Dewar's classic Fe3(CO)12 complex. The key step in both of these processes is proposed to involve the NHC's ability to induce metal-metal bond formation. These NHC-mediated reactions provide a foundation on which to develop future organometallic transformations that are catalyzed by organic species.
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pubmed:grant |
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pubmed:commentsCorrections |
http://linkedlifedata.com/resource/pubmed/commentcorrection/19900894-12642671,
http://linkedlifedata.com/resource/pubmed/commentcorrection/19900894-15326350,
http://linkedlifedata.com/resource/pubmed/commentcorrection/19900894-15584700,
http://linkedlifedata.com/resource/pubmed/commentcorrection/19900894-15725003,
http://linkedlifedata.com/resource/pubmed/commentcorrection/19900894-16179432,
http://linkedlifedata.com/resource/pubmed/commentcorrection/19900894-17446400,
http://linkedlifedata.com/resource/pubmed/commentcorrection/19900894-17991827,
http://linkedlifedata.com/resource/pubmed/commentcorrection/19900894-18588321,
http://linkedlifedata.com/resource/pubmed/commentcorrection/19900894-18719279,
http://linkedlifedata.com/resource/pubmed/commentcorrection/19900894-18778100,
http://linkedlifedata.com/resource/pubmed/commentcorrection/19900894-19331408,
http://linkedlifedata.com/resource/pubmed/commentcorrection/19900894-19368393,
http://linkedlifedata.com/resource/pubmed/commentcorrection/19900894-19534492,
http://linkedlifedata.com/resource/pubmed/commentcorrection/19900894-19900887,
http://linkedlifedata.com/resource/pubmed/commentcorrection/19900894-9836629
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
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pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
1095-9203
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pubmed:author |
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pubmed:issnType |
Electronic
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pubmed:day |
23
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pubmed:volume |
326
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
559-62
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pubmed:dateRevised |
2011-9-26
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pubmed:meshHeading |
pubmed-meshheading:19900894-Catalysis,
pubmed-meshheading:19900894-Crystallization,
pubmed-meshheading:19900894-Crystallography, X-Ray,
pubmed-meshheading:19900894-Ferrous Compounds,
pubmed-meshheading:19900894-Heterocyclic Compounds,
pubmed-meshheading:19900894-Iron,
pubmed-meshheading:19900894-Ligands,
pubmed-meshheading:19900894-Methane,
pubmed-meshheading:19900894-Models, Chemical,
pubmed-meshheading:19900894-Molecular Structure,
pubmed-meshheading:19900894-Organometallic Compounds,
pubmed-meshheading:19900894-Physicochemical Processes,
pubmed-meshheading:19900894-Temperature
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pubmed:year |
2009
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pubmed:articleTitle |
Carbenes as catalysts for transformations of organometallic iron complexes.
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pubmed:affiliation |
Arnold and Mabel Beckman Laboratory of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.,
Research Support, N.I.H., Extramural
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