Bennett, Stacey D., Pope, Simon J. A. ![]() ![]() |
Preview |
PDF
- Published Version
Available under License Creative Commons Attribution. Download (2MB) | Preview |
Abstract
The coordination chemistry of scandium supported by bis(oxazolinylphenyl)amide (R-BOPA) ligands is reported. The R-BOPA ligand is too sterically demanding to afford bis(amide) complexes [Sc(R-BOPA){N(SiMe3)2}2], but reaction of the protio-ligand with [Sc{N(SiMe3)2}2Cl(THF)] (1) afforded the mixed amido-chloride complexes [Sc(R-BOPA){N(SiMe3)2}Cl] (2). The selective reaction of the amido and chloride co-ligands in 2 has been investigated; whilst the chloride ligand can be removed cleanly by metathesis, protonation of the N(SiMe3)2 ligand results in competitive protonation of the R-BOPA ligand. The complexes [Sc(R-BOPA)(CH2SiMe2Ph)2] (5) have been synthesised. Each R-BOPA-containing complex exists in two isomeric forms. The equilibrium has been investigated both experimentally and computationally, and the data suggest that a concerted rotation of the phenyl rings interconverts the two diastereomeric isomers. All of the R-BOPA complexes were found to be luminescent; an analysis of the photophysics, aided by TD-DFT calculations, suggests ligand-centred luminescence with distinct emission lifetimes for each isomer.
Item Type: | Article |
---|---|
Date Type: | Published Online |
Status: | Published |
Schools: | Advanced Research Computing @ Cardiff (ARCCA) Chemistry |
Subjects: | Q Science > QD Chemistry |
Additional Information: | PDF uploaded in accordance with publisher's policies at http://www.sherpa.ac.uk/romeo/issn/1434-1948/ (accessed 3.6.16). |
Publisher: | Wiley |
ISSN: | 1434-1948 |
Funders: | EPSRC |
Date of First Compliant Deposit: | 3 June 2016 |
Date of Acceptance: | 2 March 2016 |
Last Modified: | 17 Feb 2024 06:01 |
URI: | https://orca.cardiff.ac.uk/id/eprint/91321 |
Citation Data
Cited 2 times in Scopus. View in Scopus. Powered By Scopus® Data
Actions (repository staff only)
![]() |
Edit Item |