PC(sp(3))P pincer carbonyl complexes of iridium(I), and iridium(III)
(2015) In RSC Advances 5(20). p.15534-15538- Abstract
- The previously reported complex trans-[IrHCl{cis-1,3-bis-(di-tert-butylphosphino)methyl} cyclohexane] (2) forms the 18-electron carbonyl compound anti-[Ir(CO)HCl{cis-1,3-bis-((di-tert-butylphosphino)methyl)} cyclohexane] (5a)upon reaction with 1 atm CO. The structural isomer syn-[IrH(CO)Cl{cis-1,3-bis-((di-tert- butylphosphino)methyl)}cyclohexane] (5b)is obtained directly upon complexation of the ligand (1) with IrCl3 center dot H2O in refluxing DMF syn-5b is the first iridium aliphatic pincer complex with this orientation of the hydrogens and is the thermodynamically more stable isomer. Both compounds 5a and 5b afford the Ir(I)complex trans-[Ir(CO){cis-1,3-bis-((di-tert-butylphosphino)methyl)}cyclohexane] (4)upon treatment with KO'Bu.... (More)
- The previously reported complex trans-[IrHCl{cis-1,3-bis-(di-tert-butylphosphino)methyl} cyclohexane] (2) forms the 18-electron carbonyl compound anti-[Ir(CO)HCl{cis-1,3-bis-((di-tert-butylphosphino)methyl)} cyclohexane] (5a)upon reaction with 1 atm CO. The structural isomer syn-[IrH(CO)Cl{cis-1,3-bis-((di-tert- butylphosphino)methyl)}cyclohexane] (5b)is obtained directly upon complexation of the ligand (1) with IrCl3 center dot H2O in refluxing DMF syn-5b is the first iridium aliphatic pincer complex with this orientation of the hydrogens and is the thermodynamically more stable isomer. Both compounds 5a and 5b afford the Ir(I)complex trans-[Ir(CO){cis-1,3-bis-((di-tert-butylphosphino)methyl)}cyclohexane] (4)upon treatment with KO'Bu. Complex 4 was also synthesised in a more straightforward fashion from the previously known terminal nitrogen complex trans-[Ir(N-2){cis-1,3-bis-((di-tert-butylphosphino)-methyl)} cyclohexane] (3)under atmospheric CO. The complexes 4, 5a and 5b were characterised spectroscopically and in the solid state. IR data point to a more electron rich metal centre as compared to the corresponding aromatic complexes. (Less)
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https://lup.lub.lu.se/record/5180109
- author
- Jonasson, Klara LU ; Polukeev, Alexey LU and Wendt, Ola LU
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- in
- RSC Advances
- volume
- 5
- issue
- 20
- pages
- 15534 - 15538
- publisher
- Royal Society of Chemistry
- external identifiers
-
- wos:000349435000072
- scopus:84922511238
- ISSN
- 2046-2069
- DOI
- 10.1039/c4ra15562a
- language
- English
- LU publication?
- yes
- id
- 1b9638df-4541-4f2f-b1c1-c975a0a3d350 (old id 5180109)
- date added to LUP
- 2016-04-01 13:16:09
- date last changed
- 2022-01-27 18:13:21
@article{1b9638df-4541-4f2f-b1c1-c975a0a3d350,
abstract = {{The previously reported complex trans-[IrHCl{cis-1,3-bis-(di-tert-butylphosphino)methyl} cyclohexane] (2) forms the 18-electron carbonyl compound anti-[Ir(CO)HCl{cis-1,3-bis-((di-tert-butylphosphino)methyl)} cyclohexane] (5a)upon reaction with 1 atm CO. The structural isomer syn-[IrH(CO)Cl{cis-1,3-bis-((di-tert- butylphosphino)methyl)}cyclohexane] (5b)is obtained directly upon complexation of the ligand (1) with IrCl3 center dot H2O in refluxing DMF syn-5b is the first iridium aliphatic pincer complex with this orientation of the hydrogens and is the thermodynamically more stable isomer. Both compounds 5a and 5b afford the Ir(I)complex trans-[Ir(CO){cis-1,3-bis-((di-tert-butylphosphino)methyl)}cyclohexane] (4)upon treatment with KO'Bu. Complex 4 was also synthesised in a more straightforward fashion from the previously known terminal nitrogen complex trans-[Ir(N-2){cis-1,3-bis-((di-tert-butylphosphino)-methyl)} cyclohexane] (3)under atmospheric CO. The complexes 4, 5a and 5b were characterised spectroscopically and in the solid state. IR data point to a more electron rich metal centre as compared to the corresponding aromatic complexes.}},
author = {{Jonasson, Klara and Polukeev, Alexey and Wendt, Ola}},
issn = {{2046-2069}},
language = {{eng}},
number = {{20}},
pages = {{15534--15538}},
publisher = {{Royal Society of Chemistry}},
series = {{RSC Advances}},
title = {{PC(sp(3))P pincer carbonyl complexes of iridium(I), and iridium(III)}},
url = {{http://dx.doi.org/10.1039/c4ra15562a}},
doi = {{10.1039/c4ra15562a}},
volume = {{5}},
year = {{2015}},
}