DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, BK | ko |
dc.contributor.author | Miah, MA | ko |
dc.contributor.author | Kang, H | ko |
dc.contributor.author | Lee, K | ko |
dc.contributor.author | Cho, YJ | ko |
dc.contributor.author | Churchill, David G | ko |
dc.contributor.author | Park, S | ko |
dc.contributor.author | Choi, MG | ko |
dc.contributor.author | Park, Joon Taik | ko |
dc.date.accessioned | 2009-08-31 | - |
dc.date.available | 2009-08-31 | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2005-02 | - |
dc.identifier.citation | ORGANOMETALLICS, v.24, pp.675 - 679 | - |
dc.identifier.issn | 0276-7333 | - |
dc.identifier.uri | http://hdl.handle.net/10203/10860 | - |
dc.description.abstract | A brief thermolysis of the bis-phosphine-substituted tetrairidium cluster Ir-4(CO)(10)(PPh3)(2) (1) in chlorobenzene (CB) converts it rapidly to the diphosphine cluster Ir-4(CO)(7)(mu-CO)(3){kappa(2)- Ph2P(O-C6H4)PPh2} (2) in 53% yield, providing evidence for ortho phosphorylation at the tetrairidium cluster framework. Treatment of 2 with excess C-60 affords the "butterfly" Ir-4-C-60 complex Ir-4(CO)(6)(mu-CO){mu(3)-kappa(2)-Ph2P(o-C6H4)P(eta(1)-o-C6H4)}(mu(3)-eta(2):eta(2):eta(2)-C-60) (3) in 71% yield. Interestingly, compound 3 can be prepared directly from the thermolysis of 1 with excess C-60 in moderate yield (52%). Compounds 2 and 3 have been characterized by microanalysis, spectroscopy, and single-crystal X-ray diffraction studies. A molecular structure determination reveals that complex 2 adopts a regular tetrahedral geometry with three edge-bridging CO groups around the basal triangle and a diphosphine kappa(2)-Ph2P(O-C6H4)PPh2 ligand chelating one of the basal iridium atoms. In contrast, complex 3 possesses a "butterfly" geometry in which the C-60 ligand is coordinated to the lower wing of the "butterfly" by an arene type mu(3)-eta(2):eta(2):eta(2)-C-60 bonding mode. One unique feature of 3 is the presence of both ortho phosphorylated and ortho-metalated phenyl rings forming five-membered [Ir-P-C-C-P] and [Ir-Ir-P-C-C] metallocycles joined in a spiro union at the iridium-iridium-bridged phosphorus atom. A crossover experiment confirms that the conversion of 1 to 2 is intramolecular. Plausible reaction pathways for the formation of 2 and 3 are proposed. | - |
dc.description.sponsorship | This work was supported by the National Research Laboratory (NRL) Program of the Ministry of Science & Technology of Korea (MOST) and the Korea Science & Engineering Foundation (Project No. 1999-1-122-001-5). | en |
dc.language | English | - |
dc.language.iso | en_US | en |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | ELECTRONIC COMMUNICATION | - |
dc.subject | CRYSTAL-STRUCTURE | - |
dc.subject | SANDWICH-COMPLEX | - |
dc.subject | METAL-COMPLEXES | - |
dc.subject | CO | - |
dc.subject | LIGAND | - |
dc.subject | C-60 | - |
dc.subject | DERIVATIVES | - |
dc.subject | FULLERENES | - |
dc.subject | CLUSTERS | - |
dc.title | Ortho phosphorylation of PPh3 to give a diphosphine and formation of a "butterfly" structure on a tetrairidium framework | - |
dc.type | Article | - |
dc.identifier.wosid | 000226924800028 | - |
dc.identifier.scopusid | 2-s2.0-14544294889 | - |
dc.type.rims | ART | - |
dc.citation.volume | 24 | - |
dc.citation.beginningpage | 675 | - |
dc.citation.endingpage | 679 | - |
dc.citation.publicationname | ORGANOMETALLICS | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Churchill, David G | - |
dc.contributor.localauthor | Park, Joon Taik | - |
dc.contributor.nonIdAuthor | Park, BK | - |
dc.contributor.nonIdAuthor | Miah, MA | - |
dc.contributor.nonIdAuthor | Kang, H | - |
dc.contributor.nonIdAuthor | Lee, K | - |
dc.contributor.nonIdAuthor | Cho, YJ | - |
dc.contributor.nonIdAuthor | Park, S | - |
dc.contributor.nonIdAuthor | Choi, MG | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | ELECTRONIC COMMUNICATION | - |
dc.subject.keywordPlus | CRYSTAL-STRUCTURE | - |
dc.subject.keywordPlus | SANDWICH-COMPLEX | - |
dc.subject.keywordPlus | METAL-COMPLEXES | - |
dc.subject.keywordPlus | CO | - |
dc.subject.keywordPlus | LIGAND | - |
dc.subject.keywordPlus | C-60 | - |
dc.subject.keywordPlus | DERIVATIVES | - |
dc.subject.keywordPlus | FULLERENES | - |
dc.subject.keywordPlus | CLUSTERS | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.