A stable and true-blue emissive hexacoordinate Si(IV) N-heterocyclic carbene complex and its use in organic light-emitting diodes

Thibault Thierry; Valerio Giuso; Federico Polo; Pierluigi Mercandelli; Yi-Ting Chen; Chih-Hao Chang; Matteo Mauro; Stéphane Bellemin-Laponnaz

doi:10.1039/D4DT00420E

A stable and true-blue emissive hexacoordinate Si(iv) N-heterocyclic carbene complex and its use in organic light-emitting diodes†

Thibault Thierry,‡^a Valerio Giuso,

‡^a Federico Polo,

^bc Pierluigi Mercandelli,

^d Yi-Ting Chen,^e Chih-Hao Chang,

^e Matteo Mauro

*^a and Stéphane Bellemin-Laponnaz

*^a

Author affiliations

* Corresponding authors

^a Institut de Physique et Chimie des Matériaux de Strasbourg UMR 7504 - Université de Strasbourg & CNRS, 23 rue du Loess, 67034 Strasbourg, France
E-mail: bellemin@unistra.fr, mauro@unistra.fr

^b Department of Molecular Sciences and Nanosystems, Ca’ Foscari University of Venice, Via Torino 155, 30172 Venice, Italy

^c European Centre for Living Technology (ECLT), Ca’ Foscari University of Venice, Ca’ Bottacin, Venice, Italy

^d Università degli Studi di Milano, Dipartimento di Chimica, 20133 Milan, Italy

^e Department of Electrical Engineering, Yuan Ze University, 32003 Taoyuan, Taiwan

Abstract

A neutral hexacoordinate Si(IV) complex containing two tridentate N-heterocyclic carbene ligands is synthesised and characterized by X-ray crystallography, optical spectroscopy, electrochemistry and computational methods. The stable compound exhibits remarkable deep-blue photoluminescence particularly in the solid state, which enables its use as an electroluminescent material in organic light-emitting diodes.

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DOI: https://doi.org/10.1039/D4DT00420E
Article type: Paper
Submitted: 13 Feb 2024
Accepted: 06 Mar 2024
First published: 08 Mar 2024
This article is Open Access

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Dalton Trans., 2024,53, 6445-6450

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A stable and true-blue emissive hexacoordinate Si(IV) N-heterocyclic carbene complex and its use in organic light-emitting diodes

T. Thierry, V. Giuso, F. Polo, P. Mercandelli, Y. Chen, C. Chang, M. Mauro and S. Bellemin-Laponnaz, Dalton Trans., 2024, 53, 6445 DOI: 10.1039/D4DT00420E

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Dalton Transactions

A stable and true-blue emissive hexacoordinate Si(iv) N-heterocyclic carbene complex and its use in organic light-emitting diodes†

Abstract

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A stable and true-blue emissive hexacoordinate Si(IV) N-heterocyclic carbene complex and its use in organic light-emitting diodes

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