1
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Ambach SJ, Krach G, Bykova E, Witthaut K, Giordano N, Bykov M, Schnick W. Building Nitridic Networks with Phosphorus and Germanium-from Ge IIP 2N 4 to Ge IVPN 3. Inorg Chem 2024; 63:8502-8509. [PMID: 38657029 DOI: 10.1021/acs.inorgchem.4c01202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Nitridophosphates and nitridogermanates attract high interest in current research due to their structural versatility. Herein, the elastic properties of GeP2N4 were investigated by single-crystal X-ray diffraction (XRD) upon compression to 44.4(1) GPa in a diamond anvil cell. Its isothermal bulk modulus was determined to be 82(6) GPa. At 44.4(1) GPa, laser heating resulted in the formation of multiple crystalline phases, one of which was identified as unprecedented germanium nitridophosphate GePN3. Its structure was elucidated from single-crystal XRD data (C2/c (no. 15), a = 8.666(5), b = 8.076(4), c = 4.691(2) Å, β = 101.00(7)°) and is built up from layers of GeN6 octahedra and PN4 tetrahedra. The GeN6 octahedra form double zigzag chains, while the PN4 tetrahedra are found in single zigzag chains. GePN3 can be recovered to ambient conditions with a unit cell volume increase of about 12%. It combines PV and GeIV in a condensed nitridic network for the first time.
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Affiliation(s)
- Sebastian J Ambach
- Department of Chemistry, University of Munich (LMU), Butenandtstraße 5-13, 81377 Munich, Germany
| | - Georg Krach
- Department of Chemistry, University of Munich (LMU), Butenandtstraße 5-13, 81377 Munich, Germany
| | - Elena Bykova
- Institute of Geosciences, Goethe University Frankfurt, Altenhöferallee 1, 60438 Frankfurt, Germany
| | - Kristian Witthaut
- Department of Chemistry, University of Munich (LMU), Butenandtstraße 5-13, 81377 Munich, Germany
| | - Nico Giordano
- Deutsches Elektronen Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
| | - Maxim Bykov
- Institute of Inorganic and Analytical Chemistry, Goethe University Frankfurt, Max-von-Laue-Straße 7, 60438 Frankfurt, Germany
| | - Wolfgang Schnick
- Department of Chemistry, University of Munich (LMU), Butenandtstraße 5-13, 81377 Munich, Germany
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2
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Günther D, Baumann D, Schnick W, Oeckler O. Modular Principle for Complex Disordered Tetrahedral Frameworks in Quenched High-Pressure Phases of Phosphorus Oxide Nitrides. Chemistry 2023; 29:e202203892. [PMID: 36720700 DOI: 10.1002/chem.202203892] [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: 12/12/2022] [Revised: 01/30/2023] [Accepted: 01/31/2023] [Indexed: 02/02/2023]
Abstract
The crystal structures of the new phosphorus oxide nitrides P40 O31 N46 and P74 O59 N84 , which were synthesized from amorphous phosphorus oxide nitride imide, exhibit complex frameworks built up from P(O,N)4 tetrahedra. The latter form various chain-like building units with various degrees of branching. These modular units can be combined and arranged in different ways, which leads to closely related structures and several disordered configurations in each compound. As the material was obtained by high-pressure high-temperature synthesis, the disorder is most likely a consequence of quenching a high-pressure phase with P(O,N)5 trigonal bipyramids. Under ambient conditions, P atoms are expected to relax by moving to the centers of the face-sharing tetrahedra that constitute the bipyramid. Diffraction patterns acquired with microfocused synchrotron radiation reveal that domains of both compounds are intergrown with H3 P8 O8 N9 , whose tetrahedral framework represents a cutout of the structures of both P40 O31 N46 and P74 O59 N84 . Powder diffraction patterns do not indicate any further phases.
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Affiliation(s)
- Daniel Günther
- Faculty for Chemistry and Mineralogy, Institute for Mineralogy, Crystallography and Materials Science, Leipzig University, Scharnhorststraße 20, 04275, Leipzig, Germany
| | - Dominik Baumann
- University of Munich (LMU), Butenandtstraße 5-13, (D) 81377, München, Germany
| | - Wolfgang Schnick
- University of Munich (LMU), Butenandtstraße 5-13, (D) 81377, München, Germany
| | - Oliver Oeckler
- Faculty for Chemistry and Mineralogy, Institute for Mineralogy, Crystallography and Materials Science, Leipzig University, Scharnhorststraße 20, 04275, Leipzig, Germany
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3
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Laniel D, Trybel F, Néri A, Yin Y, Aslandukov A, Fedotenko T, Khandarkhaeva S, Tasnádi F, Chariton S, Giacobbe C, Bright EL, Hanfland M, Prakapenka V, Schnick W, Abrikosov IA, Dubrovinsky L, Dubrovinskaia N. Revealing Phosphorus Nitrides up to the Megabar Regime: Synthesis of α'-P 3 N 5, δ-P 3 N 5 and PN 2. Chemistry 2022; 28:e202201998. [PMID: 35997073 PMCID: PMC9827839 DOI: 10.1002/chem.202201998] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Indexed: 01/12/2023]
Abstract
Non-metal nitrides are an exciting field of chemistry, featuring a significant number of compounds that can possess outstanding material properties. These properties mainly rely on maximizing the number of strong covalent bonds, with crosslinked XN6 octahedra frameworks being particularly attractive. In this study, the phosphorus-nitrogen system was studied up to 137 GPa in laser-heated diamond anvil cells, and three previously unobserved phases were synthesized and characterized by single-crystal X-ray diffraction, Raman spectroscopy measurements and density functional theory calculations. δ-P3 N5 and PN2 were found to form at 72 and 134 GPa, respectively, and both feature dense 3D networks of the so far elusive PN6 units. The two compounds are ultra-incompressible, having a bulk modulus of K0 =322 GPa for δ-P3 N5 and 339 GPa for PN2 . Upon decompression below 7 GPa, δ-P3 N5 undergoes a transformation into a novel α'-P3 N5 solid, stable at ambient conditions, that has a unique structure type based on PN4 tetrahedra. The formation of α'-P3 N5 underlines that a phase space otherwise inaccessible can be explored through materials formed under high pressure.
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Affiliation(s)
- Dominique Laniel
- Material Physics and Technology at Extreme ConditionsLaboratory of CrystallographyUniversity of Bayreuth95440BayreuthGermany,Centre for Science at Extreme Conditions and School of Physics and AstronomyUniversity of EdinburghEH9 3FDEdinburghUK
| | - Florian Trybel
- Department of PhysicsChemistry and Biology (IFM)Linköping University58183LinköpingSweden
| | - Adrien Néri
- Bayerisches GeoinstitutUniversity of Bayreuth95440BayreuthGermany
| | - Yuqing Yin
- Material Physics and Technology at Extreme ConditionsLaboratory of CrystallographyUniversity of Bayreuth95440BayreuthGermany,State Key Laboratory of Crystal MaterialsShandong UniversityJinan250100P. R. China
| | - Andrey Aslandukov
- Material Physics and Technology at Extreme ConditionsLaboratory of CrystallographyUniversity of Bayreuth95440BayreuthGermany,Bayerisches GeoinstitutUniversity of Bayreuth95440BayreuthGermany
| | | | | | - Ferenc Tasnádi
- Department of PhysicsChemistry and Biology (IFM)Linköping University58183LinköpingSweden
| | - Stella Chariton
- Center for Advanced Radiation SourcesUniversity of ChicagoChicagoIL 60637USA
| | - Carlotta Giacobbe
- European Synchrotron Radiation FacilityB.P. 22038043Grenoble CedexFrance
| | | | - Michael Hanfland
- European Synchrotron Radiation FacilityB.P. 22038043Grenoble CedexFrance
| | - Vitali Prakapenka
- Center for Advanced Radiation SourcesUniversity of ChicagoChicagoIL 60637USA
| | - Wolfgang Schnick
- Department of ChemistryUniversity of Munich (LMU)Butenandtstrasse 5–1381377MunichGermany
| | - Igor A. Abrikosov
- Department of PhysicsChemistry and Biology (IFM)Linköping University58183LinköpingSweden
| | | | - Natalia Dubrovinskaia
- Material Physics and Technology at Extreme ConditionsLaboratory of CrystallographyUniversity of Bayreuth95440BayreuthGermany,Department of PhysicsChemistry and Biology (IFM)Linköping University58183LinköpingSweden
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4
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Eisenburger L, Weippert V, Oeckler O, Schnick W. High-Pressure Synthesis of Sc 5 P 12 N 23 O 3 and Ti 5 P 12 N 24 O 2 by Activation of the Binary Nitrides ScN and TiN with NH 4 F. Chemistry 2021; 27:14184-14188. [PMID: 34407247 PMCID: PMC8596507 DOI: 10.1002/chem.202101858] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Indexed: 11/10/2022]
Abstract
Multinary transition metal nitrides and oxonitrides are a versatile and intriguing class of compounds. However, they have been investigated far less than pure oxides. The compounds Sc5 P12 N23 O3 and Ti5 P12 N24 O2 have now been synthesized from the binary nitrides ScN and TiN, respectively, by following a high-pressure high-temperature approach at 8 GPa and 1400 °C. NH4 F acts as a mineralizing agent that supports product formation and crystallization. The starting materials ScN and TiN are seemingly an uncommon choice because of their chemical inertness but, nevertheless, react under these conditions. Sc5 P12 N23 O3 and Ti5 P12 N24 O2 crystallize isotypically with Ti5 B12 O26 , consisting of solely vertex-sharing P(O/N)4 tetrahedra forming two independent interpenetrating diamond-like nets that host TM(O/N)6 (TM=Sc, Ti) octahedra. Ti5 P12 N24 O2 is a mixed-valence compound and shows ordering of Ti3+ and Ti4+ ions.
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Affiliation(s)
- Lucien Eisenburger
- Department of ChemistryUniversity of Munich (LMU)Butenandtstraße 5–1381377MunichGermany
| | - Valentin Weippert
- Department of ChemistryUniversity of Munich (LMU)Butenandtstraße 5–1381377MunichGermany
| | - Oliver Oeckler
- Institute for Mineralogy, Crystallography and Materials ScienceLeipzig UniversityScharnhorststraße 2004275LeipzigGermany
| | - Wolfgang Schnick
- Department of ChemistryUniversity of Munich (LMU)Butenandtstraße 5–1381377MunichGermany
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5
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Wendl S, Mardazad S, Strobel P, Schmidt PJ, Schnick W. HIP to be Square: Simplifying Nitridophosphate Synthesis in a Hot Isostatic Press. Angew Chem Int Ed Engl 2020; 59:18240-18243. [PMID: 32644230 PMCID: PMC7590079 DOI: 10.1002/anie.202008570] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Indexed: 11/07/2022]
Abstract
(Oxo)Nitridophosphates have recently been identified as a promising compound class for application in the field of solid-state lighting. Especially, the latest medium-pressure syntheses under ammonothermal conditions draw attention of the semiconductor and lighting industry on nitridophosphates. In this contribution, we introduce hot isostatic presses as a new type of medium-pressure synthetic tool, further simplifying nitridophosphate synthesis. In a second step, phosphorus nitride was replaced as starting material by red phosphorus, enabling the synthesis of Ca2 PN3 as model compound, starting only from readily available compounds. Moreover, first luminescence investigations on Eu2+ -doped samples reveal Ca2 PN3 :Eu2+ as a promising broad-band red-emitter (λem =650 nm; fwhm=1972 cm-1 ). Besides simple handling, the presented synthetic method offers access to large sample volumes, and the underlying reaction conditions facilitate single-crystal growth, required for excellent optical properties.
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Affiliation(s)
- Sebastian Wendl
- Department of ChemistryUniversity of Munich (LMU)Butenandtstraße 5–1381377MünchenGermany
| | - Sara Mardazad
- Department of ChemistryUniversity of Munich (LMU)Butenandtstraße 5–1381377MünchenGermany
| | - Philipp Strobel
- Lumileds Phosphor Center AachenLumileds (Germany) GmbHPhilipsstraße 852068AachenGermany
| | - Peter J. Schmidt
- Lumileds Phosphor Center AachenLumileds (Germany) GmbHPhilipsstraße 852068AachenGermany
| | - Wolfgang Schnick
- Department of ChemistryUniversity of Munich (LMU)Butenandtstraße 5–1381377MünchenGermany
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6
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Wendl S, Mardazad S, Strobel P, Schmidt PJ, Schnick W. HIP to be Square: Simplifying Nitridophosphate Synthesis in a Hot Isostatic Press. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008570] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sebastian Wendl
- Department of Chemistry University of Munich (LMU) Butenandtstraße 5–13 81377 München Germany
| | - Sara Mardazad
- Department of Chemistry University of Munich (LMU) Butenandtstraße 5–13 81377 München Germany
| | - Philipp Strobel
- Lumileds Phosphor Center Aachen Lumileds (Germany) GmbH Philipsstraße 8 52068 Aachen Germany
| | - Peter J. Schmidt
- Lumileds Phosphor Center Aachen Lumileds (Germany) GmbH Philipsstraße 8 52068 Aachen Germany
| | - Wolfgang Schnick
- Department of Chemistry University of Munich (LMU) Butenandtstraße 5–13 81377 München Germany
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7
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Vogel S, Bykov M, Bykova E, Wendl S, Kloß SD, Pakhomova A, Dubrovinskaia N, Dubrovinsky L, Schnick W. Nitride Spinel: An Ultraincompressible High-Pressure Form of BeP 2 N 4. Angew Chem Int Ed Engl 2020; 59:2730-2734. [PMID: 31596046 PMCID: PMC7027884 DOI: 10.1002/anie.201910998] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 10/05/2019] [Indexed: 01/28/2023]
Abstract
Owing to its outstanding elastic properties, the nitride spinel γ‐Si3N4 is of considered interest for materials scientists and chemists. DFT calculations suggest that Si3N4‐analog beryllium phosphorus nitride BeP2N4 adopts the spinel structure at elevated pressures as well and shows outstanding elastic properties. Herein, we investigate phenakite‐type BeP2N4 by single‐crystal synchrotron X‐ray diffraction and report the phase transition into the spinel‐type phase at 47 GPa and 1800 K in a laser‐heated diamond anvil cell. The structure of spinel‐type BeP2N4 was refined from pressure‐dependent in situ synchrotron powder X‐ray diffraction measurements down to ambient pressure, which proves spinel‐type BeP2N4 a quenchable and metastable phase at ambient conditions. Its isothermal bulk modulus was determined to 325(8) GPa from equation of state, which indicates that spinel‐type BeP2N4 is an ultraincompressible material.
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Affiliation(s)
- Sebastian Vogel
- Department of Chemistry, University of Munich (LMU), Butenandtstraße 5-13, 81377, Munich, Germany
| | - Maxim Bykov
- Department of Chemistry, University of Munich (LMU), Butenandtstraße 5-13, 81377, Munich, Germany
| | - Elena Bykova
- Bayerisches Geoinstitut (BGI), University of Bayreuth, 95440, Bayreuth, Germany.,Deutsches Elektronen-Synchrotron (DESY), 22607, Hamburg, Germany
| | - Sebastian Wendl
- Department of Chemistry, University of Munich (LMU), Butenandtstraße 5-13, 81377, Munich, Germany
| | - Simon D Kloß
- Department of Chemistry, University of Munich (LMU), Butenandtstraße 5-13, 81377, Munich, Germany
| | - Anna Pakhomova
- Deutsches Elektronen-Synchrotron (DESY), 22607, Hamburg, Germany
| | - Natalia Dubrovinskaia
- Material Physics and Technology at Extreme Conditions, University of Bayreuth, 95440, Bayreuth, Germany
| | - Leonid Dubrovinsky
- Bayerisches Geoinstitut (BGI), University of Bayreuth, 95440, Bayreuth, Germany
| | - Wolfgang Schnick
- Department of Chemistry, University of Munich (LMU), Butenandtstraße 5-13, 81377, Munich, Germany
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8
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Vogel S, Bykov M, Bykova E, Wendl S, Kloß SD, Pakhomova A, Dubrovinskaia N, Dubrovinsky L, Schnick W. Nitride Spinel: An Ultraincompressible High‐Pressure Form of BeP 2N 4. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910998] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sebastian Vogel
- Department of ChemistryUniversity of Munich (LMU) Butenandtstraße 5–13 81377 Munich Germany
| | - Maxim Bykov
- Department of ChemistryUniversity of Munich (LMU) Butenandtstraße 5–13 81377 Munich Germany
| | - Elena Bykova
- Bayerisches Geoinstitut (BGI)University of Bayreuth 95440 Bayreuth Germany
- Deutsches Elektronen-Synchrotron (DESY) 22607 Hamburg Germany
| | - Sebastian Wendl
- Department of ChemistryUniversity of Munich (LMU) Butenandtstraße 5–13 81377 Munich Germany
| | - Simon D. Kloß
- Department of ChemistryUniversity of Munich (LMU) Butenandtstraße 5–13 81377 Munich Germany
| | - Anna Pakhomova
- Deutsches Elektronen-Synchrotron (DESY) 22607 Hamburg Germany
| | - Natalia Dubrovinskaia
- Material Physics and Technology at Extreme ConditionsUniversity of Bayreuth 95440 Bayreuth Germany
| | - Leonid Dubrovinsky
- Bayerisches Geoinstitut (BGI)University of Bayreuth 95440 Bayreuth Germany
| | - Wolfgang Schnick
- Department of ChemistryUniversity of Munich (LMU) Butenandtstraße 5–13 81377 Munich Germany
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