The crystal structure and luminescence properties of the first lithium oxonitridolithosilicate Li3SiNO2:Eu2+

Daniel S. Wimmer; Kilian M. Rießbeck; Markus Seibald; Dominik Baumann; Klaus Wurst; Gunter Heymann; Hubert Huppertz

doi:10.1039/D2DT03064K

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The crystal structure and luminescence properties of the first lithium oxonitridolithosilicate Li₃SiNO₂:Eu²⁺†

Daniel S. Wimmer,‡^a Kilian M. Rießbeck,

‡^a Markus Seibald,

^b Dominik Baumann,^b Klaus Wurst,^a Gunter Heymann

^a and Hubert Huppertz

*^a

Author affiliations

* Corresponding authors

^a Institut für Allgemeine, Anorganische und Theoretische Chemie, Universität Innsbruck, Innrain 80-82, A-6020 Innsbruck, Austria
E-mail: Hubert.Huppertz@uibk.ac.at
Web: https://www.uibk.ac.at/aatc/mitarbeiter/hub/

^b ams-OSRAM International GmbH, Mittelstetter Weg 2, D-86830 Schwabmünchen, Germany

Abstract

The compound Li₃SiNO₂:Eu²⁺ was synthesized in high temperature solid-state reactions in weld shut tantalum ampules and the crystal structure of Li₃SiNO₂ has been determined by single-crystal X-ray diffraction. It crystallizes in the monoclinic space group C2/c (no. 15) with the lattice parameters a = 1049.01(3), b = 1103.42(3), c = 511.86(2) pm, β = 116.14(1)°, and a volume of V = 0.53187(2) nm³. This compound is built up from two different layers, which are arranged alternately along the crystallographic a-axis. The results from single-crystal diffraction were confirmed by the Rietveld analysis of bulk samples. Moreover, Li₃SiNO₂ could be successfully doped with the activator ion Eu²⁺ and the luminescence spectroscopy of single-crystals revealed broad band emission at λ_max = 601 nm (fwhm = 90 nm).

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DOI: https://doi.org/10.1039/D2DT03064K
Article type: Paper
Submitted: 20 Sep 2022
Accepted: 11 Oct 2022
First published: 12 Oct 2022
This article is Open Access

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Dalton Trans., 2022,51, 16465-16478

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The crystal structure and luminescence properties of the first lithium oxonitridolithosilicate Li₃SiNO₂:Eu²⁺

D. S. Wimmer, K. M. Rießbeck, M. Seibald, D. Baumann, K. Wurst, G. Heymann and H. Huppertz, Dalton Trans., 2022, 51, 16465 DOI: 10.1039/D2DT03064K

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