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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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2
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Ambach SJ, Somers C, de Boer T, Eisenburger L, Moewes A, Schnick W. Structural Influence of Lone Pairs in GeP 2 N 4 , a Germanium(II) Nitridophosphate. Angew Chem Int Ed Engl 2023; 62:e202215393. [PMID: 36350660 PMCID: PMC10107938 DOI: 10.1002/anie.202215393] [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: 10/19/2022] [Revised: 11/09/2022] [Accepted: 11/09/2022] [Indexed: 11/11/2022]
Abstract
Owing to their widespread properties, nitridophosphates are of high interest in current research. Explorative high-pressure high-temperature investigations yielded various compounds with stoichiometry MP2 N4 (M=Be, Ca, Sr, Ba, Mn, Cd), which are discussed as ultra-hard or luminescent materials, when doped with Eu2+ . Herein, we report the first germanium nitridophosphate, GeP2 N4 , synthesized from Ge3 N4 and P3 N5 at 6 GPa and 800 °C. The structure was determined by single-crystal X-ray diffraction and further characterized by energy-dispersive X-ray spectroscopy, density functional theory calculations, IR and NMR spectroscopy. The highly condensed network of PN4 -tetrahedra shows a strong structural divergence to other MP2 N4 compounds, which is attributed to the stereochemical influence of the lone pair of Ge2+ . Thus, the formal exchange of alkaline earth cations with Ge2+ may open access to various compounds with literature-known stoichiometry, however, new structures and properties.
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Affiliation(s)
- Sebastian J Ambach
- Department of Chemistry, Ludwig-Maximilians-University Munich, Butenandtstraße 5-13, 81377, Munich, Germany
| | - Cody Somers
- Department of Physics and Engineering Physics, University of Saskatchewan, 116 Science Place, Saskatoon, Saskatchewan, S7 N 5E2, Canada
| | - Tristan de Boer
- Department of Physics and Engineering Physics, University of Saskatchewan, 116 Science Place, Saskatoon, Saskatchewan, S7 N 5E2, Canada
| | - Lucien Eisenburger
- Department of Chemistry, Ludwig-Maximilians-University Munich, Butenandtstraße 5-13, 81377, Munich, Germany
| | - Alexander Moewes
- Department of Physics and Engineering Physics, University of Saskatchewan, 116 Science Place, Saskatoon, Saskatchewan, S7 N 5E2, Canada
| | - Wolfgang Schnick
- Department of Chemistry, Ludwig-Maximilians-University Munich, Butenandtstraße 5-13, 81377, Munich, Germany
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3
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Errandonea D. Exploring the high-pressure behaviour of polymorphs of AMO4 ternary oxides: crystal structure and physical properties. J CHEM SCI 2019. [DOI: 10.1007/s12039-019-1663-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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4
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Vogel S, Bykov M, Bykova E, Wendl S, Kloß SD, Pakhomova A, Chariton S, Koemets E, Dubrovinskaia N, Dubrovinsky L, Schnick W. Boron Phosphorus Nitride at Extremes: PN 6 Octahedra in the High-Pressure Polymorph β-BP 3 N 6. Angew Chem Int Ed Engl 2019; 58:9060-9063. [PMID: 31020764 DOI: 10.1002/anie.201902845] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Indexed: 01/12/2023]
Abstract
The high-pressure behavior of non-metal nitrides is of special interest for inorganic and theoretical chemistry as well as materials science, as these compounds feature intriguing elastic properties. The double nitride α-BP3 N6 was investigated by in situ single-crystal X-ray diffraction (XRD) upon cold compression to a maximum pressure of about 42 GPa, and its isothermal bulk modulus at ambient conditions was determined to be 146(6) GPa. At maximum pressure the sample was laser-heated, which resulted in the formation of an unprecedented high-pressure polymorph, β-BP3 N6 . Its structure was elucidated by single-crystal XRD, and can be described as a decoration of a distorted hexagonal close packing of N with B in tetrahedral and P in octahedral voids. Hence, β-BP3 N6 is the first nitride to contain PN6 octahedra, representing the much sought-after proof of principle for sixfold N-coordinated P that has been predicted for numerous high-pressure phases of nitrides.
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Affiliation(s)
- Sebastian Vogel
- Department of Chemistry, University of Munich (LMU), Butenandtstraße 5-13, 81377, Munich, Germany
| | - Maxim Bykov
- Bayerisches Geoinstitut (BGI), University of Bayreuth, 95440, Bayreuth, Germany
| | - Elena Bykova
- 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
| | - Stella Chariton
- Bayerisches Geoinstitut (BGI), University of Bayreuth, 95440, Bayreuth, Germany
| | - Egor Koemets
- Bayerisches Geoinstitut (BGI), University of Bayreuth, 95440, Bayreuth, 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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Vogel S, Bykov M, Bykova E, Wendl S, Kloß SD, Pakhomova A, Chariton S, Koemets E, Dubrovinskaia N, Dubrovinsky L, Schnick W. Boron Phosphorus Nitride at Extremes: PN
6
Octahedra in the High‐Pressure Polymorph β‐BP
3
N
6. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201902845] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sebastian Vogel
- Department of ChemistryUniversity of Munich (LMU) Butenandtstraße 5–13 81377 Munich Germany
| | - Maxim Bykov
- Bayerisches Geoinstitut (BGI)University of Bayreuth 95440 Bayreuth Germany
| | - Elena Bykova
- 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
| | - Stella Chariton
- Bayerisches Geoinstitut (BGI)University of Bayreuth 95440 Bayreuth Germany
| | - Egor Koemets
- Bayerisches Geoinstitut (BGI)University of Bayreuth 95440 Bayreuth 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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