Aliphatic pincer-type POCOP ligands and their complexation behaviour with iridium: Crystal structure of an iridium(III) phosphinite complex
(2011) In Inorganica Chimica Acta 379(1). p.76-80- Abstract
- Reaction of 2 equivalents of 1,3-bis-(di-tert-butylphosphinito)-2-methyl-propane (1a) with [Ir(COD)Cl](2) affords the first aliphatic diphosphinite PCP pincer complex with iridium, Ir(H){(t-Bu2POCH2)(2)C(Me)}Cl (2). The poor yield of 2 is partly explained by the formation of a di-nuclear byproduct [IrCl(COD)](2)(mu(2)-{(t-Bu2POCH2)(2)CH(Me)}) (3). Reaction of 1,3-bis-(di-iso-propylphosphinito)-2-methyl-propane (1b) under the same condition does not give any cyclometallation, and reaction with IrCl3 center dot H2O in DMF leads to complete decomposition of the pincer ligand under the formation of Ir(H)(i-Pr2P(OH))(3)(CO) (4), underpinning the comparatively low thermal stability of aliphatic phosphinite pincer systems. (C) 2011 Elsevier B.V.... (More)
- Reaction of 2 equivalents of 1,3-bis-(di-tert-butylphosphinito)-2-methyl-propane (1a) with [Ir(COD)Cl](2) affords the first aliphatic diphosphinite PCP pincer complex with iridium, Ir(H){(t-Bu2POCH2)(2)C(Me)}Cl (2). The poor yield of 2 is partly explained by the formation of a di-nuclear byproduct [IrCl(COD)](2)(mu(2)-{(t-Bu2POCH2)(2)CH(Me)}) (3). Reaction of 1,3-bis-(di-iso-propylphosphinito)-2-methyl-propane (1b) under the same condition does not give any cyclometallation, and reaction with IrCl3 center dot H2O in DMF leads to complete decomposition of the pincer ligand under the formation of Ir(H)(i-Pr2P(OH))(3)(CO) (4), underpinning the comparatively low thermal stability of aliphatic phosphinite pincer systems. (C) 2011 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2272086
- author
- Jonasson, Klara LU ; Ahlsten, Nanna and Wendt, Ola LU
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Aliphatic pincer complexes, Cyclometallation, Iridium, Phosphinites
- in
- Inorganica Chimica Acta
- volume
- 379
- issue
- 1
- pages
- 76 - 80
- publisher
- Elsevier
- external identifiers
-
- wos:000297266200012
- scopus:81755165854
- ISSN
- 0020-1693
- DOI
- 10.1016/j.ica.2011.09.034
- 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
- 433668aa-fcae-49e6-8ba9-25de6fc0cbf7 (old id 2272086)
- date added to LUP
- 2016-04-01 14:01:31
- date last changed
- 2022-01-27 22:27:58
@article{433668aa-fcae-49e6-8ba9-25de6fc0cbf7, abstract = {{Reaction of 2 equivalents of 1,3-bis-(di-tert-butylphosphinito)-2-methyl-propane (1a) with [Ir(COD)Cl](2) affords the first aliphatic diphosphinite PCP pincer complex with iridium, Ir(H){(t-Bu2POCH2)(2)C(Me)}Cl (2). The poor yield of 2 is partly explained by the formation of a di-nuclear byproduct [IrCl(COD)](2)(mu(2)-{(t-Bu2POCH2)(2)CH(Me)}) (3). Reaction of 1,3-bis-(di-iso-propylphosphinito)-2-methyl-propane (1b) under the same condition does not give any cyclometallation, and reaction with IrCl3 center dot H2O in DMF leads to complete decomposition of the pincer ligand under the formation of Ir(H)(i-Pr2P(OH))(3)(CO) (4), underpinning the comparatively low thermal stability of aliphatic phosphinite pincer systems. (C) 2011 Elsevier B.V. All rights reserved.}}, author = {{Jonasson, Klara and Ahlsten, Nanna and Wendt, Ola}}, issn = {{0020-1693}}, keywords = {{Aliphatic pincer complexes; Cyclometallation; Iridium; Phosphinites}}, language = {{eng}}, number = {{1}}, pages = {{76--80}}, publisher = {{Elsevier}}, series = {{Inorganica Chimica Acta}}, title = {{Aliphatic pincer-type POCOP ligands and their complexation behaviour with iridium: Crystal structure of an iridium(III) phosphinite complex}}, url = {{http://dx.doi.org/10.1016/j.ica.2011.09.034}}, doi = {{10.1016/j.ica.2011.09.034}}, volume = {{379}}, year = {{2011}}, }