Luminescent dinuclear copper(I) complexes bearing an imidazolylpyrimidine bridging ligand

Chenfei Li; Wenbo Li; Adam Francis Henwood; David Hall; David Bradford Cordes; Alexandra Martha Zoya Slawin; Vincent Lemaur; Yoann Olivier; Ifor David William Samuel; Eli Zysman-Colman

doi:10.1021/acs.inorgchem.0c01866

Luminescent dinuclear copper(I) complexes bearing an imidazolylpyrimidine bridging ligand

Chenfei Li, Wenbo Li, Adam Francis Henwood, David Hall, David Bradford Cordes, Alexandra Martha Zoya Slawin, Vincent Lemaur, Yoann Olivier, Ifor David William Samuel, Eli Zysman-Colman

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

Abstract

The synthesis and photophysical study of two dinuclear copper(I) complexes bearing a 2-(1H-imidazol-2-yl)pyrimidine bridging ligand are described. The tetrahedral coordination sphere of each copper center is completed through the use of a bulky bis(phosphine) ligand, either DPEphos or Xantphos. Temperature-dependent photophysical studies demonstrated emission through a combination of phosphorescence and thermally activated delayed fluorescence for both complexes, and an intense emission (Φ_PL = 46%) was observed for a crystalline sample of one of the complexes reported. The photophysics of these two complexes is very sensitive to the environment. Two pseudopolymorphs of one of the dinuclear complexes were isolated, with distinct photophysics. The emission color of the crystals can be changed by grinding, and the differences in their photophysics before and after grinding are discussed.

Original language	English
Journal	Inorganic Chemistry
Volume	Article ASAP
Early online date	1 Sept 2020
DOIs	https://doi.org/10.1021/acs.inorgchem.0c01866
Publication status	E-pub ahead of print - 1 Sept 2020

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10.1021/acs.inorgchem.0c01866

Li-2020-Luminscent-dinuclear-copper-InorgChem-AAM
Copyright © 2020 American Chemical Society. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1021/acs.inorgchem.0c01866
Accepted author manuscript, 4.15 MB

Chemistry EPSRC-JSPS: EPSRC-JSPS Core-to-Core Grant Application
Zysman-Colman, E. (PI)
1/08/18 → 31/01/24
Project: Standard
EPSRC-JSPS Core-to-core Grant: EPSRC-JSPS Core-to-Core Grant Application
Samuel, I. D. W. (PI)
1/08/18 → 31/07/23
Project: Standard

Luminescent Dinuclear Copper(I) Complexes Bearing An Imidazolylpyrimidine Bridging Ligand (dataset)
Li, C. (Creator), Li, W. (Creator), Henwood, A. F. (Creator), Hall, D. (Creator), Cordes, D. B. (Creator), Slawin, A. M. Z. (Creator), Lemaur, V. (Creator), Olivier, Y. (Creator), Samuel, I. D. W. (Creator) & Zysman-Colman, E. (Creator), University of St Andrews, 2020
DOI: 10.17630/16111495-7b55-4690-bed6-c6e51932f870
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@article{099f245fbdfc429a93decd58b9beaec4,

title = "Luminescent dinuclear copper(I) complexes bearing an imidazolylpyrimidine bridging ligand",

abstract = "The synthesis and photophysical study of two dinuclear copper(I) complexes bearing a 2-(1H-imidazol-2-yl)pyrimidine bridging ligand are described. The tetrahedral coordination sphere of each copper center is completed through the use of a bulky bis(phosphine) ligand, either DPEphos or Xantphos. Temperature-dependent photophysical studies demonstrated emission through a combination of phosphorescence and thermally activated delayed fluorescence for both complexes, and an intense emission (ΦPL = 46%) was observed for a crystalline sample of one of the complexes reported. The photophysics of these two complexes is very sensitive to the environment. Two pseudopolymorphs of one of the dinuclear complexes were isolated, with distinct photophysics. The emission color of the crystals can be changed by grinding, and the differences in their photophysics before and after grinding are discussed.",

author = "Chenfei Li and Wenbo Li and Henwood, {Adam Francis} and David Hall and Cordes, {David Bradford} and Slawin, {Alexandra Martha Zoya} and Vincent Lemaur and Yoann Olivier and Samuel, {Ifor David William} and Eli Zysman-Colman",

note = "Funding: C.Li thanks the Prof. & Mrs. Purdie Bequests Scholarship and AstraZeneca for a PhD Studentship. We are grateful to the Engineering and Physical Sciences Research Council of the UK (EPSRC) for financial support (grants EP/R035164/1 and EP/P010482/1). We acknowledge the EPSRC UK National Mass Spectrometry Facility at Swansea University for mass spectrometry analysis. The work in Mons was supported by the European Commission / R{\'e}gion Wallonne (FEDER –BIORGEL project), the Consortium des {\'E}quipements de Calcul Intensif (C{\'E}CI), funded by the Fonds National de la Recherche Scientifique (F.R.S.-FNRS) under Grant No. 2.5020.11 as well as the Tier-1 supercomputer of the F{\'e}d{\'e}ration Wallonie-Bruxelles, infrastructure funded by the Walloon Region under Grant Agreement n1117545, and FRS-FNRS.",

year = "2020",

month = sep,

day = "1",

doi = "10.1021/acs.inorgchem.0c01866",

language = "English",

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journal = "Inorganic Chemistry",

issn = "0020-1669",

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TY - JOUR

T1 - Luminescent dinuclear copper(I) complexes bearing an imidazolylpyrimidine bridging ligand

AU - Li, Chenfei

AU - Li, Wenbo

AU - Henwood, Adam Francis

AU - Hall, David

AU - Cordes, David Bradford

AU - Slawin, Alexandra Martha Zoya

AU - Lemaur, Vincent

AU - Olivier, Yoann

AU - Samuel, Ifor David William

AU - Zysman-Colman, Eli

N1 - Funding: C.Li thanks the Prof. & Mrs. Purdie Bequests Scholarship and AstraZeneca for a PhD Studentship. We are grateful to the Engineering and Physical Sciences Research Council of the UK (EPSRC) for financial support (grants EP/R035164/1 and EP/P010482/1). We acknowledge the EPSRC UK National Mass Spectrometry Facility at Swansea University for mass spectrometry analysis. The work in Mons was supported by the European Commission / Région Wallonne (FEDER –BIORGEL project), the Consortium des Équipements de Calcul Intensif (CÉCI), funded by the Fonds National de la Recherche Scientifique (F.R.S.-FNRS) under Grant No. 2.5020.11 as well as the Tier-1 supercomputer of the Fédération Wallonie-Bruxelles, infrastructure funded by the Walloon Region under Grant Agreement n1117545, and FRS-FNRS.

PY - 2020/9/1

Y1 - 2020/9/1

N2 - The synthesis and photophysical study of two dinuclear copper(I) complexes bearing a 2-(1H-imidazol-2-yl)pyrimidine bridging ligand are described. The tetrahedral coordination sphere of each copper center is completed through the use of a bulky bis(phosphine) ligand, either DPEphos or Xantphos. Temperature-dependent photophysical studies demonstrated emission through a combination of phosphorescence and thermally activated delayed fluorescence for both complexes, and an intense emission (ΦPL = 46%) was observed for a crystalline sample of one of the complexes reported. The photophysics of these two complexes is very sensitive to the environment. Two pseudopolymorphs of one of the dinuclear complexes were isolated, with distinct photophysics. The emission color of the crystals can be changed by grinding, and the differences in their photophysics before and after grinding are discussed.

AB - The synthesis and photophysical study of two dinuclear copper(I) complexes bearing a 2-(1H-imidazol-2-yl)pyrimidine bridging ligand are described. The tetrahedral coordination sphere of each copper center is completed through the use of a bulky bis(phosphine) ligand, either DPEphos or Xantphos. Temperature-dependent photophysical studies demonstrated emission through a combination of phosphorescence and thermally activated delayed fluorescence for both complexes, and an intense emission (ΦPL = 46%) was observed for a crystalline sample of one of the complexes reported. The photophysics of these two complexes is very sensitive to the environment. Two pseudopolymorphs of one of the dinuclear complexes were isolated, with distinct photophysics. The emission color of the crystals can be changed by grinding, and the differences in their photophysics before and after grinding are discussed.

U2 - 10.1021/acs.inorgchem.0c01866

DO - 10.1021/acs.inorgchem.0c01866

M3 - Article

SN - 0020-1669

VL - Article ASAP

JO - Inorganic Chemistry

JF - Inorganic Chemistry

ER -

Luminescent dinuclear copper(I) complexes bearing an imidazolylpyrimidine bridging ligand

Abstract

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Chemistry EPSRC-JSPS: EPSRC-JSPS Core-to-Core Grant Application

EPSRC-JSPS Core-to-core Grant: EPSRC-JSPS Core-to-Core Grant Application

Datasets

Luminescent Dinuclear Copper(I) Complexes Bearing An Imidazolylpyrimidine Bridging Ligand (dataset)

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