Pritchard, VE, Martir, DR, Oldknow, S et al. (5 more authors) (2017) Homochiral self-sorted and emissive Ir(III) metallo-cryptophanes. Chemistry - A European Journal, 23 (26). pp. 6290-6294. ISSN 0947-6539
Abstract
The racemic ligands (±)-tris(isonicotinoyl)-cyclotriguaiacylene (L1), or (±)-tris(4-pyridyl-methyl)-cyclotriguaiacylene (L2) assemble with racemic (Λ,Δ)-[Ir(ppy)2(MeCN)2]+, in which ppy=2-phenylpyridinato, to form [{Ir(ppy)2}3(L)2]3+ metallo-cryptophane cages. The crystal structure of [{Ir(ppy)2}3(L1)2]⋅3BF4 has MM-ΛΛΛ and PP-ΔΔΔ isomers, and homochiral self-sorting occurs in solution, a process accelerated by a chiral guest. Self-recognition between L1 and L2 within cages does not occur, and cages show very slow ligand exchange. Both cages are phosphorescent, with [{Ir(ppy)2}3(L2)2]3+ having enhanced and blue-shifted emission when compared with [{Ir(ppy)2}3(L1)2]3+.
Metadata
Authors/Creators: |
|
---|---|
Copyright, Publisher and Additional Information: | (c) 2017, Wiley. This is the peer reviewed version of the following article: Pritchard, VE, Martir, DR, Oldknow, S et al. (5 more authors) (2017) Homochiral self-sorted and emissive Ir(III) metallo-cryptophanes. Chemistry - A European Journal, 23 (26). pp. 6290-6294, which has been published in final form at https://dx.doi.org/10.1002/chem.201701348. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. |
Dates: |
|
Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemistry (Leeds) > Inorganic Chemistry (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 29 Mar 2017 09:37 |
Last Modified: | 20 Apr 2018 00:38 |
Status: | Published |
Publisher: | Wiley |
Identification Number: | https://doi.org/10.1002/chem.201701348 |
Related URLs: |