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Wandelt SL, Mutschke A, Khalyavin D, Steinadler J, Karttunen AJ, Schnick W. Ba 12 [BN 2 ] 6.67 H 4 : A Disordered Anti-Skutterudite filled with Nitridoborate Anions. Angew Chem Int Ed Engl 2024; 63:e202316469. [PMID: 38051820 DOI: 10.1002/anie.202316469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/01/2023] [Accepted: 12/05/2023] [Indexed: 12/07/2023]
Abstract
Skutterudites are of high interest in current research due to their diversity of structures comprising empty, partially filled and filled variants, mostly based on metallic compounds. We herein present Ba12 [BN2 ]6.67 H4 , forming a non-metallic filled anti-skutterudite. It is accessed in a solid-state ampoule reaction from barium subnitride, boron nitride and barium hydride at 750 °C. Single-crystal X-ray and neutron powder diffraction data allowed to elucidate the structure in the cubic space group Im3 ‾ ${\bar{3}}$ (no. 204). The barium and hydride atoms form a three-dimensional network consisting of corner-sharing HBa6 octahedra and Ba12 icosahedra. Slightly bent [BN2 ]3- units are located in the icosahedra and the voids in-between. 1 H and 11 B magic angle spinning (MAS) NMR experiments and vibrational spectroscopy further support the structure model. Quantum chemical calculations coincide well with experimental results and provide information about the electronic structure of Ba12 [BN2 ]6.67 H4 .
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Affiliation(s)
- Sophia L Wandelt
- Department of Chemistry, University of Munich (LMU), Butenandtstr. 5-13, 81377, Munich, Germany
| | - Alexander Mutschke
- Chair of Inorganic Chemistry with Focus in Novel Materials, Department of Chemistry, TU Munich, Lichtenbergstr. 4, 85748, Garching, Germany
- Heinz Maier-Leibnitz Zentrum (MLZ), TU Munich, Lichtenbergstr. 1, 85748, Garching, Germany
| | - Dmitry Khalyavin
- Rutherford Appleton Laboratory, ISIS Neutron and Muon Source, Didcot, OX11 0QX, UK
| | - Jennifer Steinadler
- Department of Chemistry, University of Munich (LMU), Butenandtstr. 5-13, 81377, Munich, Germany
| | - Antti J Karttunen
- Department of Chemistry and Materials Science, Aalto University P.O. Box 16100, 00076, Aalto, Finland
| | - Wolfgang Schnick
- Department of Chemistry, University of Munich (LMU), Butenandtstr. 5-13, 81377, Munich, Germany
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Wandelt SL, Mutschke A, Khalyavin D, Calaminus R, Steinadler J, Lotsch BV, Schnick W. Combining Nitridoborates, Nitrides and Hydrides-Synthesis and Characterization of the Multianionic Sr 6 N[BN 2 ] 2 H 3. Angew Chem Int Ed Engl 2023; 62:e202313564. [PMID: 37905748 DOI: 10.1002/anie.202313564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/16/2023] [Accepted: 10/31/2023] [Indexed: 11/02/2023]
Abstract
Multianionic metal hydrides, which exhibit a wide variety of physical properties and complex structures, have recently attracted growing interest. Here we present Sr6 N[BN2 ]2 H3 , prepared in a solid-state ampoule reaction at 800 °C, as the first combination of nitridoborate, nitride and hydride anions within a single compound. The crystal structure was solved from single-crystal X-ray and neutron powder diffraction data in space group P21 /c (no. 14), revealing a three-dimensional network of undulated layers of nitridoborate units, strontium atoms and hydride together with nitride anions. Magic angle spinning (MAS) NMR and vibrational spectroscopy in combination with quantum chemical calculations further confirm the structure model. Electrochemical measurements suggest the existence of hydride ion conductivity, allowing the hydrides to migrate along the layers.
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Affiliation(s)
- Sophia L Wandelt
- Department of Chemistry, University of Munich (LMU), Butenandtstr. 5-13, 81377, Munich, Germany
| | - Alexander Mutschke
- Chair of Inorganic Chemistry with Focus in Novel Materials, Department of Chemistry, TU Munich, Lichtenbergstr. 4, 85748, Garching, Germany
- Heinz Maier-Leibnitz Zentrum (MLZ), TU Munich, Lichtenbergstr. 1, 85748, Garching, Germany
| | - Dmitry Khalyavin
- Rutherford Appleton Laboratory, ISIS Neutron and Muon Source, Didcot, OX11 0QX, UK
| | - Robert Calaminus
- Department of Chemistry, University of Munich (LMU), Butenandtstr. 5-13, 81377, Munich, Germany
- Max Planck Institute for Solid State Research, Heisenbergstr. 1, 70569, Stuttgart, Germany
| | - Jennifer Steinadler
- Department of Chemistry, University of Munich (LMU), Butenandtstr. 5-13, 81377, Munich, Germany
| | - Bettina V Lotsch
- Department of Chemistry, University of Munich (LMU), Butenandtstr. 5-13, 81377, Munich, Germany
- Max Planck Institute for Solid State Research, Heisenbergstr. 1, 70569, Stuttgart, Germany
| | - Wolfgang Schnick
- Department of Chemistry, University of Munich (LMU), Butenandtstr. 5-13, 81377, Munich, Germany
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Mutschke A, Schulz A, Bertmer M, Ritter C, Karttunen AJ, Kieslich G, Kunkel N. Expanding the hydride chemistry: Antiperovskites A3MO 4H ( A = Rb, Cs; M = Mo, W) introducing the transition oxometalate hydrides. Chem Sci 2022; 13:7773-7779. [PMID: 35865889 PMCID: PMC9258318 DOI: 10.1039/d2sc01861f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 05/24/2022] [Indexed: 12/03/2022] Open
Abstract
The four compounds A3MO4H (A = Rb, Cs; M = Mo, W) are introduced as the first members of the new material class of the transition oxometalate hydrides. The compounds are accessible via a thermal synthesis route with carefully controlled conditions. Their crystal structures were solved by neutron diffraction of the deuterated analogues. Rb3MoO4D, Cs3MoO4D and Cs3WO4D crystallize in the antiperovskite-like K3SO4F-structure type, while Rb3WO4D adopts a different orthorhombic structure. 2H MAS NMR, Raman spectroscopy and elemental analysis prove the abundance of hydride ions next to oxometalate ions and experimental findings are supported by quantum chemical calculations. The tetragonal phases are direct and wide band gap semiconductors arising from hydride states, whereas Rb3WO4H shows a unique, peculiar valence band structure dominated by hydride states. The synthesis, structures and electronic properties of the first four heteroanionic compounds containing both hydride and transition oxometalate ions are reported.![]()
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Affiliation(s)
- Alexander Mutschke
- Chair of Inorganic Chemistry with Focus on Novel Materials, Technical University of Munich Lichtenbergstrasse 4 85748 Garching Germany
| | - Annika Schulz
- Chair of Inorganic Chemistry with Focus on Novel Materials, Technical University of Munich Lichtenbergstrasse 4 85748 Garching Germany
| | - Marko Bertmer
- Felix Bloch Institute for Solid State Physics Leipzig University Linnéstrasse 5 04103 Leipzig Germany
| | - Clemens Ritter
- Institut Laue-Langevin 71 Avenue des Martyrs 38042 Grenoble Cedex 9 France
| | - Antti J Karttunen
- Department of Chemistry and Materials Science, Aalto University P.O. Box 16100 FI-00076 Aalto Finland
| | - Gregor Kieslich
- Chair of Inorganic and Metal-Organic Chemistry, Technical University of Munich Lichtenbergstrasse 4 85748 Garching Germany
| | - Nathalie Kunkel
- Chair of Inorganic Chemistry with Focus on Novel Materials, Technical University of Munich Lichtenbergstrasse 4 85748 Garching Germany
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Computational Chemistry-Guided Syntheses and Crystal Structures of the Heavier Lanthanide Hydride Oxides DyHO, ErHO, and LuHO. CRYSTALS 2021. [DOI: 10.3390/cryst11070750] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Heteroanionic hydrides offer great possibilities in the design of functional materials. For ternary rare earth hydride oxide REHO, several modifications were reported with indications for a significant phase width with respect to H and O of the cubic representatives. We obtained DyHO and ErHO as well as the thus far elusive LuHO from solid-state reactions of RE2O3 and REH3 or LuH3 with CaO and investigated their crystal structures by neutron and X-ray powder diffraction. While DyHO, ErHO, and LuHO adopted the cubic anion-ordered half-Heusler LiAlSi structure type (F4¯3m, a(DyHO) = 5.30945(10) Å, a(ErHO) = 5.24615(7) Å, a(LuHO) = 5.171591(13) Å), LuHO additionally formed the orthorhombic anti-LiMgN structure type (Pnma; LuHO: a = 7.3493(7) Å, b = 3.6747(4) Å, c = 5.1985(3) Å; LuDO: a = 7.3116(16) Å, b = 3.6492(8) Å, c = 5.2021(7) Å). A comparison of the cubic compounds’ lattice parameters enabled a significant distinction between REHO and REH1+2xO1−x (x < 0 or x > 0). Furthermore, a computational chemistry study revealed the formation of REHO compounds of the smallest rare earth elements to be disfavored in comparison to the sesquioxides, which is why they may only be obtained by mild synthesis conditions.
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Mutschke A, Bernard GM, Bertmer M, Karttunen AJ, Ritter C, Michaelis VK, Kunkel N. Na 3 SO 4 H-The First Representative of the Material Class of Sulfate Hydrides. Angew Chem Int Ed Engl 2021; 60:5683-5687. [PMID: 33438295 PMCID: PMC7986708 DOI: 10.1002/anie.202016582] [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: 12/14/2020] [Indexed: 01/22/2023]
Abstract
The first representative of a novel class of mixed-anionic compounds, the sulfate hydride Na3 SO4 H, and the corresponding deuteride Na3 SO4 D were obtained from the solid-state reaction of NaH or NaD with dry Na2 SO4 . Precise reaction control is required, because too harsh conditions lead to the reduction of sulfate to sulfide. A combined X-ray and neutron diffraction study revealed that the compound crystallizes in the tetragonal space group P4/nmm with the lattice parameters a=7.0034(2) Å and c=4.8569(2) Å. The sole presence of hydride and absence of hydroxide ions is proven by vibrational spectroscopy and comparison with spectra predicted from quantum chemical calculations. 1 H and 23 Na MAS NMR spectra are consistent with the structure of Na3 SO4 H: a single 1 H peak at 2.9 ppm is observed, while two peaks at 15.0 and 6.2 ppm for the inequivalent 23 Na sites are observed. Elemental analysis and quantum chemical calculations further support these results.
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Affiliation(s)
- Alexander Mutschke
- Institut für Anorganische ChemieGeorg-August-University GoettingenTammannstrasse 437077GoettingenGermany
- Chair for Inorganic Chemistry with Focus on Novel MaterialsTechnical University of MunichLichtenbergstrasse 485748GarchingGermany
| | - Guy M. Bernard
- Department of ChemistryUniversity of AlbertaEdmontonAlbertaT6G 2G2Canada
| | - Marko Bertmer
- Felix Bloch Institute for Solid State PhysicsLeipzig UniversityLinnéstrasse 504103LeipzigGermany
| | - Antti J. Karttunen
- Department of Chemistry and Materials ScienceAalto UniversityP.O. Box 16100FI-00076AaltoFinland
| | - Clemens Ritter
- Institut Laue-Langevin71 avenue des Martyrs38042Grenoble Cedex 9France
| | | | - Nathalie Kunkel
- Institut für Anorganische ChemieGeorg-August-University GoettingenTammannstrasse 437077GoettingenGermany
- Chair for Inorganic Chemistry with Focus on Novel MaterialsTechnical University of MunichLichtenbergstrasse 485748GarchingGermany
- Woehler Research Institute for Sustainable Chemistry (WISCh)Georg-August-University, GoettingenGermany
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