Chiral iridium(III) complexes in light-emitting electrochemical cells: exploring the impact of stereochemistry on the photophysical properties and device performances

Diego Rota Martir; Cristina Momblona; Antonio Pertegás; David Bradford Cordes; Alexandra Martha Zoya Slawin; Henk J. Bolink; Eli Zysman-Colman

doi:10.1021/acsami.6b14050

Chiral iridium(III) complexes in light-emitting electrochemical cells: exploring the impact of stereochemistry on the photophysical properties and device performances

Diego Rota Martir, Cristina Momblona, Antonio Pertegás, David Bradford Cordes, Alexandra Martha Zoya Slawin, Henk J. Bolink, Eli Zysman-Colman

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

Abstract

Despite hundreds of cationic bis-cyclometalated iridium(III) complexes having been explored as emitters for light-emitting electrochemical cells (LEECs), uniformly their composition has been in the form of a racemic mixture of Λ and Δ enantiomers. The investigation of LEECs using enantiopure iridium(III) emitters, however, remains unprecedented. Herein, we report the preparation, the crystal structures and the optoelectronic properties of two families of cyclometalated iridium(III) complexes of the form of [(C^N)2Ir(dtBubpy)]PF6 (where dtBubpy is 4,4'-di-tert-butyl-2,2'-bipyridine) in both their racemic and enantiopure configurations. LEEC devices using Λ and Δ enantiomers as well as the racemic mixture of both families have been prepared and the device performances were tested. Importantly, different solid-state photophysical properties exist between enantiopure and racemic emitters, which are also reflected in the device performances.

Original language	English
Pages (from-to)	33907-33915
Number of pages	9
Journal	ACS Applied Materials & Interfaces
Volume	8
Issue number	49
Early online date	16 Nov 2016
DOIs	https://doi.org/10.1021/acsami.6b14050
Publication status	Published - 14 Dec 2016

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10.1021/acsami.6b14050Licence: CC BY

Martir_2016_Chiral_ACSAM&I_CC
Copyright 2016 American Chemical Society. This is an open access article published under a Creative Commons Attribution (CC-BY) License, which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.
Final published version, 3.06 MBLicence: CC BY

Blue-Emitting Phospors: Blue-emitting Phosphors for Solid State Lighting Applications
Zysman-Colman, E. (PI)
EPSRC
1/06/15 → 30/09/19
Project: Standard

Eli Zysman-Colman
- eli.zysman-colmanst-andrews.acuk
- School of Chemistry - Director of Impact, Professor of Optoelectronic Materials
- Centre for Energy Ethics
- Organic Semiconductor Centre
- EaSTCHEM
Person: Academic

Data underpinning - Chiral Iridium(III) Complexes in Light-Emitting Electrochemical Cells: Exploring The Impact of Stereochemistry on The Photophysical Properties and Device Performances
Rota Martir, D. (Creator), Momblona, C. (Creator), Pertegás, A. (Creator), Cordes, D. B. (Creator), Slawin, A. M. Z. (Creator), Bolink, H. J. (Creator) & Zysman-Colman, E. (Creator), University of St Andrews, 2 Dec 2016
DOI: 10.17630/085105be-3161-4ff5-8511-e26b56f533a0
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Cite this

Rota Martir, D., Momblona, C., Pertegás, A., Cordes, D. B., Slawin, A. M. Z., Bolink, H. J., & Zysman-Colman, E. (2016). Chiral iridium(III) complexes in light-emitting electrochemical cells: exploring the impact of stereochemistry on the photophysical properties and device performances. ACS Applied Materials & Interfaces, 8(49), 33907-33915. https://doi.org/10.1021/acsami.6b14050

@article{7a8ade49032d413794762a0f68633831,

title = "Chiral iridium(III) complexes in light-emitting electrochemical cells: exploring the impact of stereochemistry on the photophysical properties and device performances",

abstract = "Despite hundreds of cationic bis-cyclometalated iridium(III) complexes having been explored as emitters for light-emitting electrochemical cells (LEECs), uniformly their composition has been in the form of a racemic mixture of Λ and Δ enantiomers. The investigation of LEECs using enantiopure iridium(III) emitters, however, remains unprecedented. Herein, we report the preparation, the crystal structures and the optoelectronic properties of two families of cyclometalated iridium(III) complexes of the form of [(C^N)2Ir(dtBubpy)]PF6 (where dtBubpy is 4,4'-di-tert-butyl-2,2'-bipyridine) in both their racemic and enantiopure configurations. LEEC devices using Λ and Δ enantiomers as well as the racemic mixture of both families have been prepared and the device performances were tested. Importantly, different solid-state photophysical properties exist between enantiopure and racemic emitters, which are also reflected in the device performances.",

author = "{Rota Martir}, Diego and Cristina Momblona and Antonio Perteg{\'a}s and Cordes, {David Bradford} and Slawin, {Alexandra Martha Zoya} and Bolink, {Henk J.} and Eli Zysman-Colman",

year = "2016",

month = dec,

day = "14",

doi = "10.1021/acsami.6b14050",

language = "English",

volume = "8",

pages = "33907--33915",

journal = "ACS Applied Materials & Interfaces",

issn = "1944-8244",

publisher = "American Chemical Society (ACS)",

number = "49",

}

Rota Martir, D, Momblona, C, Pertegás, A, Cordes, DB , Slawin, AMZ, Bolink, HJ & Zysman-Colman, E 2016, 'Chiral iridium(III) complexes in light-emitting electrochemical cells: exploring the impact of stereochemistry on the photophysical properties and device performances', ACS Applied Materials & Interfaces, vol. 8, no. 49, pp. 33907-33915. https://doi.org/10.1021/acsami.6b14050

Chiral iridium(III) complexes in light-emitting electrochemical cells: exploring the impact of stereochemistry on the photophysical properties and device performances. / Rota Martir, Diego; Momblona, Cristina; Pertegás, Antonio et al.
In: ACS Applied Materials & Interfaces, Vol. 8, No. 49, 14.12.2016, p. 33907-33915.

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

TY - JOUR

T1 - Chiral iridium(III) complexes in light-emitting electrochemical cells

T2 - exploring the impact of stereochemistry on the photophysical properties and device performances

AU - Rota Martir, Diego

AU - Momblona, Cristina

AU - Pertegás, Antonio

AU - Cordes, David Bradford

AU - Slawin, Alexandra Martha Zoya

AU - Bolink, Henk J.

AU - Zysman-Colman, Eli

PY - 2016/12/14

Y1 - 2016/12/14

N2 - Despite hundreds of cationic bis-cyclometalated iridium(III) complexes having been explored as emitters for light-emitting electrochemical cells (LEECs), uniformly their composition has been in the form of a racemic mixture of Λ and Δ enantiomers. The investigation of LEECs using enantiopure iridium(III) emitters, however, remains unprecedented. Herein, we report the preparation, the crystal structures and the optoelectronic properties of two families of cyclometalated iridium(III) complexes of the form of [(C^N)2Ir(dtBubpy)]PF6 (where dtBubpy is 4,4'-di-tert-butyl-2,2'-bipyridine) in both their racemic and enantiopure configurations. LEEC devices using Λ and Δ enantiomers as well as the racemic mixture of both families have been prepared and the device performances were tested. Importantly, different solid-state photophysical properties exist between enantiopure and racemic emitters, which are also reflected in the device performances.

AB - Despite hundreds of cationic bis-cyclometalated iridium(III) complexes having been explored as emitters for light-emitting electrochemical cells (LEECs), uniformly their composition has been in the form of a racemic mixture of Λ and Δ enantiomers. The investigation of LEECs using enantiopure iridium(III) emitters, however, remains unprecedented. Herein, we report the preparation, the crystal structures and the optoelectronic properties of two families of cyclometalated iridium(III) complexes of the form of [(C^N)2Ir(dtBubpy)]PF6 (where dtBubpy is 4,4'-di-tert-butyl-2,2'-bipyridine) in both their racemic and enantiopure configurations. LEEC devices using Λ and Δ enantiomers as well as the racemic mixture of both families have been prepared and the device performances were tested. Importantly, different solid-state photophysical properties exist between enantiopure and racemic emitters, which are also reflected in the device performances.

U2 - 10.1021/acsami.6b14050

DO - 10.1021/acsami.6b14050

M3 - Article

SN - 1944-8244

VL - 8

SP - 33907

EP - 33915

JO - ACS Applied Materials & Interfaces

JF - ACS Applied Materials & Interfaces

IS - 49

ER -

Chiral iridium(III) complexes in light-emitting electrochemical cells: exploring the impact of stereochemistry on the photophysical properties and device performances

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Data underpinning - Chiral Iridium(III) Complexes in Light-Emitting Electrochemical Cells: Exploring The Impact of Stereochemistry on The Photophysical Properties and Device Performances

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