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Rhodium(I) complexes of the conformationally rigid IBioxMe4Ligand : preparation of mono-, bis-, and tris-ligated NHC complexes
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Chaplin, Adrian B. (2014) Rhodium(I) complexes of the conformationally rigid IBioxMe4Ligand : preparation of mono-, bis-, and tris-ligated NHC complexes. Organometallics, Volume 33 (Number 12). pp. 3069-3077. doi:10.1021/om500332n ISSN 0276-7333.
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Official URL: http://dx.doi.org/10.1021/om500332n
Abstract
The preparation and characterization of a series of mono-, bis-, and tris-ligated rhodium(I) complexes of Glorius’ conformationally rigid bioxazoline-derived N-heterocyclic carbene ligand IBioxMe4 are described. Through reaction of [Rh(COE)2Cl]2 (COE = cis-cyclooctene) with isolated IBioxMe4, [Rh(IBioxMe4)(COE)Cl]2 (1), trans-[Rh(IBioxMe4)2(COE)Cl] (2), and [Rh(IBioxMe4)3Cl] (3) were each isolated by careful choice of the reaction conditions. Further substitution and salt metathesis reactions of 1–3 were investigated, and derivatives containing CO, norbornadiene, and cyclopentadienyl ancillary ligands were readily isolated. Notably, halide abstraction from 2 and 3 using Na[BArF4] (ArF = 3,5-C6H3(CF3)2) resulted in the formation of low-coordinate T-shaped cis-[Rh(IBioxMe4)2(COE)][BArF4] (9) and [Rh(IBioxMe4)3][BArF4] (11). The solid-state structures of 2, 9, and 11 each feature IBioxMe4 ligands that bind unusually with tilted coordination geometries.
Item Type: | Journal Article | ||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||||||
Journal or Publication Title: | Organometallics | ||||||||
Publisher: | American Chemical Society | ||||||||
ISSN: | 0276-7333 | ||||||||
Official Date: | 23 June 2014 | ||||||||
Dates: |
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Volume: | Volume 33 | ||||||||
Number: | Number 12 | ||||||||
Page Range: | pp. 3069-3077 | ||||||||
DOI: | 10.1021/om500332n | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
Date of first compliant deposit: | 26 May 2016 | ||||||||
Date of first compliant Open Access: | 26 May 2016 |
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