Synthesis and characterisation of PCsp3P phosphine and phosphinite platinum (II) complexes. Cyclometallation and simple coordination
(2007) In Dalton Transactions p.5427-5433- Abstract
- 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 Csp3-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... (More)
- 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 Csp3-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. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/936372
- author
- Olsson, Daniel LU ; Arunachalampillai, Athimoolam and Wendt, Ola LU
- organization
- publishing date
- 2007
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Dalton Transactions
- pages
- 5427 - 5433
- publisher
- Royal Society of Chemistry
- external identifiers
-
- wos:000251120300010
- scopus:36248983110
- ISSN
- 1477-9234
- DOI
- 10.1039/b712660c
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Organic chemistry (S/LTH) (011001240)
- id
- 3164ada2-d8a6-4be0-a9ff-069616326525 (old id 936372)
- date added to LUP
- 2016-04-01 11:34:21
- date last changed
- 2025-04-04 14:03:07
@article{3164ada2-d8a6-4be0-a9ff-069616326525, abstract = {{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 Csp3-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.}}, author = {{Olsson, Daniel and Arunachalampillai, Athimoolam and Wendt, Ola}}, issn = {{1477-9234}}, language = {{eng}}, pages = {{5427--5433}}, publisher = {{Royal Society of Chemistry}}, series = {{Dalton Transactions}}, title = {{Synthesis and characterisation of PCsp3P phosphine and phosphinite platinum (II) complexes. Cyclometallation and simple coordination}}, url = {{http://dx.doi.org/10.1039/b712660c}}, doi = {{10.1039/b712660c}}, year = {{2007}}, }