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Pritzl RM, Pointner MM, Witthaut K, Strobel P, Schmidt PJ, Schnick W. Tunable Narrow-Band Cyan-Emission of Eu 2+-doped Nitridomagnesophosphates Ba 3-xSr x[Mg 2P 10N 20] : Eu 2+ (x=0-3). Angew Chem Int Ed Engl 2024; 63:e202403648. [PMID: 38567876 DOI: 10.1002/anie.202403648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Indexed: 05/03/2024]
Abstract
Tetrahedron-based nitrides offer a wide range of properties and applications. Highly condensed nitridophosphates are examples of nitrides that exhibit fascinating luminescence properties when doped with Eu2+, making them appealing for industrial applications. Here, we present the first nitridomagnesophosphate solid solution series Ba3-xSrx[Mg2P10N20] : Eu2+ (x=0-3), synthesized by a high-pressure high-temperature approach using the multianvil technique (3 GPa, 1400 °C). Starting from the binary nitrides P3N5 and Mg3N2 and the respective alkaline earth azides, we incorporate Mg into the P/N framework to increase the degree of condensation κ to 0.6, the highest observed value for alkaline earth nitridophosphates. The crystal structure was elucidated by single-crystal X-ray diffraction, powder X-ray diffraction, energy-dispersive X-ray spectroscopy (EDX), and solid-state NMR. DFT calculations were performed on the title compounds and other related highly condensed nitridophosphates to investigate the influence of Mg in the P/N network. Eu2+-doped samples of the solid solution series show a tunable narrow-band emission from cyan to green (492-515 nm), which is attributed to the preferred doping of a single crystallographic site. Experimental confirmation of this assumption was provided by overdoping experiments and STEM-HAADF studies on the series as well on the stoichiometric compound Ba2Eu[Mg2P10N20] with additional atomic resolution energy-dispersive X-ray spectroscopy (EDX) mapping.
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Affiliation(s)
- Reinhard M Pritzl
- Department of Chemistry, University of Munich (LMU), Butenandtstraße 5-13, 81377, Munich, Germany
| | - Monika M Pointner
- Department of Chemistry, University of Munich (LMU), Butenandtstraße 5-13, 81377, Munich, Germany
| | - Kristian Witthaut
- Department of Chemistry, University of Munich (LMU), Butenandtstraße 5-13, 81377, Munich, Germany
| | - Philipp Strobel
- Lumileds Phosphor Center Aachen (LPCA), Lumileds (Germany) GmbH, Philipsstraße 8, 52068, Aachen, Germany
| | - Peter J Schmidt
- Lumileds Phosphor Center Aachen (LPCA), Lumileds (Germany) GmbH, Philipsstraße 8, 52068, Aachen, Germany
| | - Wolfgang Schnick
- Department of Chemistry, University of Munich (LMU), Butenandtstraße 5-13, 81377, Munich, Germany
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Mu Q, Wang XM, Pei T, Wang YY, Li W, Wang Y, Yang ZP, Jiao H. Zeolite-like Topology Oxonitridosilicate La 3.6Ba 1.7Si 5N 10O 2.1 with Potential Applications in Nonlinear Optical Materials. Inorg Chem 2023. [PMID: 37991326 DOI: 10.1021/acs.inorgchem.3c03376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
A novel zeolite-like topology oxonitridosilicate La3.6Ba1.7Si5N10O2.1 with the space group Amm2 (no. 38) and lattice parameters a = 9.5193 (3) Å, b = 16.7011 (5) Å, c = 26.0279 (8) Å, and Z = 12 has been synthesized by a high-temperature solid-state reaction. The crystal structure of La3.6Ba1.7Si5N10O2.1 has four different kinds of tiling, and the cages in the structure are filled with La, Ba, and O atoms. The presence of a noncentrosymmetric space group further suggests its potential for nonlinear optical (NLO) applications, and La3.6Ba1.7Si5N10O2.1 demonstrated a stronger second-harmonic generation (SHG) response than that of SiO2.
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Affiliation(s)
- Qiong Mu
- Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, Shaanxi, P. R. China
| | - Xiao-Ming Wang
- Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, Shaanxi, P. R. China
| | - Tianyao Pei
- Center for High Pressure Science and Technology Advanced Research (HPSTAR), Beijing 100193, China
| | - Yan-Yan Wang
- Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, Shaanxi, P. R. China
| | - Wen Li
- Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, Shaanxi, P. R. China
| | - Yonggang Wang
- Center for High Pressure Science and Technology Advanced Research (HPSTAR), Beijing 100193, China
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Zu-Pei Yang
- School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710062, Shaanxi, P. R. China
| | - Huan Jiao
- Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Laboratory for Advanced Energy Technology, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710062, Shaanxi, P. R. China
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Wendl S, Zipkat M, Strobel P, Schmidt PJ, Schnick W. Synthesis of Nitride Zeolites in a Hot Isostatic Press. Angew Chem Int Ed Engl 2021; 60:4470-4473. [PMID: 33201554 PMCID: PMC7985876 DOI: 10.1002/anie.202012722] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Indexed: 11/08/2022]
Abstract
The recently introduced nitridophosphate synthesis in a hot isostatic press (HIP) enabled simple access to large‐scale product quantities starting from exclusively commercially available starting materials. Herein, we show that this method is suitable for the synthesis of highly condensed functional nitridophosphates, as well. Hence, the syntheses of the nitridophosphate zeolites Ba3P5N10X (X=Cl, Br) are presented as proof of concept for this innovative access. Furthermore, samples of unprecedented Sr3P5N10X (X=Cl, Br) were prepared and characterized to demonstrate the advantages of this synthetic approach over commonly used methods. Luminescence investigations on Eu2+‐doped samples of AE3P5N10X (AE=Sr, Ba; X=Cl, Br) were carried out and characteristics of observed emission bands are discussed.
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Affiliation(s)
- Sebastian Wendl
- Department of Chemistry, University of Munich (LMU), Butenandtstr. 5-13, 81377, München, Germany
| | - Mirjam Zipkat
- Department of Chemistry, University of Munich (LMU), Butenandtstr. 5-13, 81377, München, Germany
| | - Philipp Strobel
- Lumileds Phosphor Center Aachen, Lumileds (Germany) GmbH, Philipsstr. 8, 52068, Aachen, Germany
| | - Peter J Schmidt
- Lumileds Phosphor Center Aachen, Lumileds (Germany) GmbH, Philipsstr. 8, 52068, Aachen, Germany
| | - Wolfgang Schnick
- Department of Chemistry, University of Munich (LMU), Butenandtstr. 5-13, 81377, München, Germany
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