The Influence of Aryl Substituents on the Supramolecular Structures and Photoluminescence of Cyclic Trinuclear Pyrazolato Copper(I) Complexes

Cyclic trinuclear complexes with group 11 metal(I) ions are fascinating and important to coordination chemistry. One of the ligands known to form these cyclic trinuclear complexes is pyrazolate, which is a bridging ligand that coordinates many transition metal ions in a Npz–M–Npz linear mode (Npz =...

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Autores principales: Kiyoshi Fujisawa, Mai Saotome, Yoko Ishikawa, David James Young
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Publicado: MDPI AG 2021
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spelling oai:doaj.org-article:09740ee8fa0245bcb7be74124c1ac1832021-11-25T18:32:28ZThe Influence of Aryl Substituents on the Supramolecular Structures and Photoluminescence of Cyclic Trinuclear Pyrazolato Copper(I) Complexes10.3390/nano111131012079-4991https://doaj.org/article/09740ee8fa0245bcb7be74124c1ac1832021-11-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/3101https://doaj.org/toc/2079-4991Cyclic trinuclear complexes with group 11 metal(I) ions are fascinating and important to coordination chemistry. One of the ligands known to form these cyclic trinuclear complexes is pyrazolate, which is a bridging ligand that coordinates many transition metal ions in a Npz–M–Npz linear mode (Npz = pyrazolyl nitrogen atom). In these group 11 metal(I) ions, copper is the most abundant metal. Therefore, polynuclear copper(I) complexes are very important in this field. The cyclic trinuclear copper(I) complex <b>[Cu(3,5-Ph<sub>2</sub>pz)]<sub>3</sub></b> (3,5-Ph<sub>2</sub>pz<sup>–</sup> = 3,5-diphenyl-1-pyrazolate anion) was reported in 1988 as a landmark complex, but its photoluminescence properties have hitherto not been described. In this study, we report the photoluminescence and two different polymorphs of <b>[Cu(3,5-Ph<sub>2</sub>pz)]<sub>3</sub></b> and its derivative [<b>Cu(3-Me-5-Phpz)]<sub>3</sub></b> (3-Me-5-Phpz<sup>–</sup> = 3-metyl-5-phenyl-1-pyrazale anion). The substituents in <b>[Cu(3-Me-5-Phpz)]<sub>3</sub></b> cause smaller distortions in the solid-state structure and a red-shift in photoluminescence due to the presence of intermolecular cuprophilic interactions.Kiyoshi FujisawaMai SaotomeYoko IshikawaDavid James YoungMDPI AGarticlepolynuclearcoppercrystal structurepyrazolate ligandphotoluminescenceChemistryQD1-999ENNanomaterials, Vol 11, Iss 3101, p 3101 (2021)
institution DOAJ
collection DOAJ
language EN
topic polynuclear
copper
crystal structure
pyrazolate ligand
photoluminescence
Chemistry
QD1-999
spellingShingle polynuclear
copper
crystal structure
pyrazolate ligand
photoluminescence
Chemistry
QD1-999
Kiyoshi Fujisawa
Mai Saotome
Yoko Ishikawa
David James Young
The Influence of Aryl Substituents on the Supramolecular Structures and Photoluminescence of Cyclic Trinuclear Pyrazolato Copper(I) Complexes
description Cyclic trinuclear complexes with group 11 metal(I) ions are fascinating and important to coordination chemistry. One of the ligands known to form these cyclic trinuclear complexes is pyrazolate, which is a bridging ligand that coordinates many transition metal ions in a Npz–M–Npz linear mode (Npz = pyrazolyl nitrogen atom). In these group 11 metal(I) ions, copper is the most abundant metal. Therefore, polynuclear copper(I) complexes are very important in this field. The cyclic trinuclear copper(I) complex <b>[Cu(3,5-Ph<sub>2</sub>pz)]<sub>3</sub></b> (3,5-Ph<sub>2</sub>pz<sup>–</sup> = 3,5-diphenyl-1-pyrazolate anion) was reported in 1988 as a landmark complex, but its photoluminescence properties have hitherto not been described. In this study, we report the photoluminescence and two different polymorphs of <b>[Cu(3,5-Ph<sub>2</sub>pz)]<sub>3</sub></b> and its derivative [<b>Cu(3-Me-5-Phpz)]<sub>3</sub></b> (3-Me-5-Phpz<sup>–</sup> = 3-metyl-5-phenyl-1-pyrazale anion). The substituents in <b>[Cu(3-Me-5-Phpz)]<sub>3</sub></b> cause smaller distortions in the solid-state structure and a red-shift in photoluminescence due to the presence of intermolecular cuprophilic interactions.
format article
author Kiyoshi Fujisawa
Mai Saotome
Yoko Ishikawa
David James Young
author_facet Kiyoshi Fujisawa
Mai Saotome
Yoko Ishikawa
David James Young
author_sort Kiyoshi Fujisawa
title The Influence of Aryl Substituents on the Supramolecular Structures and Photoluminescence of Cyclic Trinuclear Pyrazolato Copper(I) Complexes
title_short The Influence of Aryl Substituents on the Supramolecular Structures and Photoluminescence of Cyclic Trinuclear Pyrazolato Copper(I) Complexes
title_full The Influence of Aryl Substituents on the Supramolecular Structures and Photoluminescence of Cyclic Trinuclear Pyrazolato Copper(I) Complexes
title_fullStr The Influence of Aryl Substituents on the Supramolecular Structures and Photoluminescence of Cyclic Trinuclear Pyrazolato Copper(I) Complexes
title_full_unstemmed The Influence of Aryl Substituents on the Supramolecular Structures and Photoluminescence of Cyclic Trinuclear Pyrazolato Copper(I) Complexes
title_sort influence of aryl substituents on the supramolecular structures and photoluminescence of cyclic trinuclear pyrazolato copper(i) complexes
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/09740ee8fa0245bcb7be74124c1ac183
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