<sup>Et</sup>IDip (<sup>Et</sup>IPr)—Synthesis, Characterisation and Reactivity of a Robust, Backbone-Modified N-Heterocyclic Carbene and Group 13 Element Complexes

<sup>Et</sup>IDip (<sup>Et</sup>IPr)—Synthesis, Characterisation and Reactivity of a Robust, Backbone-Modified N-Heterocyclic Carbene and Group 13 Element Complexes

We report the synthesis, characterisation and reactivity of the stable imidazol-2-ylidene <sup>Et</sup>IDip (<sup>Et</sup>IPr), {EtCN(Dip)}<sub>2</sub>C:, Dip = 2,6-<i>i</i>Pr<sub>2</sub>C<sub>6</sub>H<sub>3</sub>, a...

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Bibliographic Details
Main Authors:	Huanhuan Dong, Albert Martinez-Segura, Riley W. Kelehan, Connor Bourne, Aidan P. McKay, Alexandra M. Z. Slawin, David B. Cordes, Andreas Stasch
Format:	Article
Language:	English
Published:	MDPI AG 2025-01-01
Series:	Inorganics
Subjects:	group 13 complexes hydrides N-heterocyclic carbenes stable carbenes sterically demanding ligands
Online Access:	https://www.mdpi.com/2304-6740/13/1/27
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Summary:	We report the synthesis, characterisation and reactivity of the stable imidazol-2-ylidene <sup>Et</sup>IDip (<sup>Et</sup>IPr), {EtCN(Dip)}<sub>2</sub>C:, Dip = 2,6-<i>i</i>Pr<sub>2</sub>C<sub>6</sub>H<sub>3</sub>, as a chemically robust alternative to IDip (IPr), {HCN(Dip)}<sub>2</sub>C:. The N-heterocyclic carbene <sup>Et</sup>IDip could be further converted to the oxidised species [<sup>Et</sup>IDipCl]Cl, <sup>Et</sup>IDipF<sub>2</sub>, <sup>Et</sup>IDipO, and <sup>Et</sup>IDipSe, and the group 13 element complexes <sup>Et</sup>IDipEX<sub>3</sub>, with E = B, X = Br; E = Al, X = I; E = Ga, X = I; E = Al, X = H. The properties of the <sup>Et</sup>IDip and IDip ligands are compared and the molecular structures of (DipNCEt)<sub>2</sub>, [<sup>Et</sup>IDipH]Cl, [<sup>Et</sup>IDipH]I, <sup>Et</sup>IDip, [<sup>Et</sup>IDipCl]Cl, <sup>Et</sup>IDipF<sub>2</sub>, <sup>Et</sup>IDipO, <sup>Et</sup>IDipBBr<sub>3</sub>, <sup>Et</sup>IDipAlI<sub>3</sub>, <sup>Et</sup>IDipGaI<sub>3</sub>, and <sup>Et</sup>IDipAlH<sub>3</sub> have been determined.
ISSN:	2304-6740