Linked Life Data

18026592

Source:http://linkedlifedata.com/resource/pubmed/id/18026592

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
46
pubmed:dateCreated
2007-11-20
pubmed:abstractText
New and improved preparative routes to the previously known PCP ligands cis-1,3-bis(di-isopropylphosphinito)cyclohexane and cis-1,3-bis[(di-tert-butylphosphino)methyl]cyclohexane are reported. They react with 1 equivalent of dichloro(1,5-cyclooctadiene)platinum(II) [(COD)PtCl2] to give the cis coordinated complex cis-[PtCl2{cis-1,3-bis(di-isopropylphosphinito)}cyclohexane] and the C(sp3)-H activated complex trans-[PtCl{cis-1,3-bis(di-tert-butylphosphino)}cyclohexane]. The new PCP ligand cis-1,3-bis(di-tert-butylphosphinito)cyclohexane was synthesised and reacts with [(COD)PtCl2] giving the di-nuclear trans-[PtCl2{cis-1,3-bis(di-tert-butylphosphinito)cyclohexane}]2, which is highly insoluble. All metal complexes were characterised with X-ray crystallography. DFT calculations indicate that the inability of the phosphinite ligands to cyclometallate is due to a kinetic barrier, possibly involving an axial-equatorial conformational change necessary for the C-H activation process.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Dec
pubmed:issn
1477-9226
pubmed:author
pubmed:issnType
Print
pubmed:day
14
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
5427-33
pubmed:year
2007
pubmed:articleTitle
Synthesis and characterisation of PC(sp3)P phosphine and phosphinite platinum(II) complexes. Cyclometallation and simple coordination.
pubmed:affiliation
Organic Chemistry, Department of Chemistry, Lund University, PO Box 124, S-221 00 Lund, Sweden.
pubmed:publicationType
Journal Article