Synthesis and reactivity of new bis(N-heterocyclic carbene) iridium(I) complexes

David J. Nelson; Byron J. Truscott; Alexandra M Z Slawin; Steven P. Nolan

doi:10.1021/ic4018773

Synthesis and reactivity of new bis(N-heterocyclic carbene) iridium(I) complexes

David J. Nelson, Byron J. Truscott, Alexandra M Z Slawin, Steven P. Nolan^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

New complexes of the type trans-[IrCl(η²-COE)(NHC) ₂] (COE = cis-cyclooctene; NHC = N-heterocyclic carbene) have been prepared in one step from the reaction of ca. 4 equiv of NHC or [AgCl(NHC)] with [IrCl(η²-COE)₂]₂ in benzene. These new complexes have been characterized by techniques including NMR and IR spectroscopy, X-ray crystallography, and elemental analysis. Exposing trans-[IrCl(COE)(IⁱPr^Me)₂] to CO yielded trans-[IrCl(CO)(IⁱPr^Me)₂], which is the only bis(NHC) analogue of Vaska's complex trans-[IrCl(CO)(PPh₃) ₂] known to date. The synthesis of trans-[Ir(CO)(IⁱPr ^Me)₂(R)] (R = MeO, PhCC, OSiPh₃, O ₂CPh) complexes has been achieved via deprotonation reactions involving the new hydroxide species trans-[Ir(OH)(CO)(IⁱPr ^Me)₂].

Original language	English
Pages (from-to)	12674-12681
Number of pages	8
Journal	Inorganic Chemistry
Volume	52
Issue number	21
Early online date	22 Oct 2013
DOIs	https://doi.org/10.1021/ic4018773
Publication status	Published - 4 Nov 2013
Externally published	Yes

Keywords

X-ray crystallography
elemental analysis
trans-[Ir(OH)(CO)(IiPrMe)2]

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10.1021/ic4018773

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@article{aef71cc733844773aea233f1f95779c4,

title = "Synthesis and reactivity of new bis(N-heterocyclic carbene) iridium(I) complexes",

abstract = "New complexes of the type trans-[IrCl(η2-COE)(NHC) 2] (COE = cis-cyclooctene; NHC = N-heterocyclic carbene) have been prepared in one step from the reaction of ca. 4 equiv of NHC or [AgCl(NHC)] with [IrCl(η2-COE)2]2 in benzene. These new complexes have been characterized by techniques including NMR and IR spectroscopy, X-ray crystallography, and elemental analysis. Exposing trans-[IrCl(COE)(IiPrMe)2] to CO yielded trans-[IrCl(CO)(IiPrMe)2], which is the only bis(NHC) analogue of Vaska's complex trans-[IrCl(CO)(PPh3) 2] known to date. The synthesis of trans-[Ir(CO)(IiPr Me)2(R)] (R = MeO, PhCC, OSiPh3, O 2CPh) complexes has been achieved via deprotonation reactions involving the new hydroxide species trans-[Ir(OH)(CO)(IiPr Me)2].",

keywords = "X-ray crystallography, elemental analysis, trans-[Ir(OH)(CO)(IiPrMe)2]",

author = "Nelson, {David J.} and Truscott, {Byron J.} and Slawin, {Alexandra M Z} and Nolan, {Steven P.}",

year = "2013",

month = nov,

day = "4",

doi = "10.1021/ic4018773",

language = "English",

volume = "52",

pages = "12674--12681",

journal = "Inorganic Chemistry",

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publisher = "American Chemical Society",

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TY - JOUR

T1 - Synthesis and reactivity of new bis(N-heterocyclic carbene) iridium(I) complexes

AU - Nelson, David J.

AU - Truscott, Byron J.

AU - Slawin, Alexandra M Z

AU - Nolan, Steven P.

PY - 2013/11/4

Y1 - 2013/11/4

N2 - New complexes of the type trans-[IrCl(η2-COE)(NHC) 2] (COE = cis-cyclooctene; NHC = N-heterocyclic carbene) have been prepared in one step from the reaction of ca. 4 equiv of NHC or [AgCl(NHC)] with [IrCl(η2-COE)2]2 in benzene. These new complexes have been characterized by techniques including NMR and IR spectroscopy, X-ray crystallography, and elemental analysis. Exposing trans-[IrCl(COE)(IiPrMe)2] to CO yielded trans-[IrCl(CO)(IiPrMe)2], which is the only bis(NHC) analogue of Vaska's complex trans-[IrCl(CO)(PPh3) 2] known to date. The synthesis of trans-[Ir(CO)(IiPr Me)2(R)] (R = MeO, PhCC, OSiPh3, O 2CPh) complexes has been achieved via deprotonation reactions involving the new hydroxide species trans-[Ir(OH)(CO)(IiPr Me)2].

AB - New complexes of the type trans-[IrCl(η2-COE)(NHC) 2] (COE = cis-cyclooctene; NHC = N-heterocyclic carbene) have been prepared in one step from the reaction of ca. 4 equiv of NHC or [AgCl(NHC)] with [IrCl(η2-COE)2]2 in benzene. These new complexes have been characterized by techniques including NMR and IR spectroscopy, X-ray crystallography, and elemental analysis. Exposing trans-[IrCl(COE)(IiPrMe)2] to CO yielded trans-[IrCl(CO)(IiPrMe)2], which is the only bis(NHC) analogue of Vaska's complex trans-[IrCl(CO)(PPh3) 2] known to date. The synthesis of trans-[Ir(CO)(IiPr Me)2(R)] (R = MeO, PhCC, OSiPh3, O 2CPh) complexes has been achieved via deprotonation reactions involving the new hydroxide species trans-[Ir(OH)(CO)(IiPr Me)2].

KW - X-ray crystallography

KW - elemental analysis

KW - trans-[Ir(OH)(CO)(IiPrMe)2]

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U2 - 10.1021/ic4018773

DO - 10.1021/ic4018773

M3 - Article

AN - SCOPUS:84887122326

SN - 0020-1669

VL - 52

SP - 12674

EP - 12681

JO - Inorganic Chemistry

JF - Inorganic Chemistry

IS - 21

ER -

Synthesis and reactivity of new bis(N-heterocyclic carbene) iridium(I) complexes

Abstract

Keywords

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