1
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Zeitz S, Antoniuk H, Hlukhyy V, Fässler TF. Electronic Structure Analysis of the A 10Tt 2P 6 System (A=Li-Cs; Tt=Si, Ge, Sn) and Synthesis of the Direct Band Gap Semiconductor K 10Sn 2P 6. Chemistry 2024; 30:e202400002. [PMID: 38320961 DOI: 10.1002/chem.202400002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 02/05/2024] [Accepted: 02/06/2024] [Indexed: 02/08/2024]
Abstract
Investigating the relationship between atomic and electronic structures is a powerful tool to screen the wide variety of Zintl phases for interesting (opto-)electronic properties. To get an insight in such relations, the A10Tt2P6 system (A=Li-Cs; Tt=Si-Sn) was picked as model system to analyse the influence of structural motives, combination of elements and their properties on type and width of the band gaps. Those compounds comprise two interesting structural motives of their anions, which are either monomeric trigonal planar TtP3 5- units which are isostructural to CO3 2- or [Tt2P6]10- dimers which correspond to two edge-sharing TtP4 tetrahedra. The A10Tt2P6 compounds were structurally optimized for both polymorphs and subsequent frequency analysis, band structure as well as density of states calculations were performed. The Gibbs free energies were compared to determine temperature dependent stability, where Na10Si2P6, Na10Ge2P6 and K10Sn2P6 were found to be candidates for a high temperature phase transition between the two polymorphs. Additionally, the unknown, but predicted compound K10Sn2P6 was synthesized and characterized by single crystal and powder x-ray diffraction. It crystalizes in the monoclinic space group P 21/n and incorporates [Sn2P6]10- edge sharing double tetrahedra. It was determined to be a direct band gap semiconductor with a band gap of 2.57 eV.
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Affiliation(s)
- Sabine Zeitz
- School of Natural Science, Technical University of Munich, Chair of Inorganic Chemistry with Focus on Novel Materials, Lichtenbergstraße 4, D-85747, Garching, Germany
| | - Hanna Antoniuk
- School of Natural Science, Technical University of Munich, Chair of Inorganic Chemistry with Focus on Novel Materials, Lichtenbergstraße 4, D-85747, Garching, Germany
| | - Viktor Hlukhyy
- School of Natural Science, Technical University of Munich, Chair of Inorganic Chemistry with Focus on Novel Materials, Lichtenbergstraße 4, D-85747, Garching, Germany
| | - T F Fässler
- School of Natural Science, Technical University of Munich, Chair of Inorganic Chemistry with Focus on Novel Materials, Lichtenbergstraße 4, D-85747, Garching, Germany
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2
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Hoffmann AV, Hlukhyy V, Fässler TF. Crystal structure of undecacalcium decaarsenide, Ca 11As 10. Z KRIST-NEW CRYST ST 2022. [DOI: 10.1515/ncrs-2022-0380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Abstract
Ca11As10, tetragonal, I4/mmm (no. 139), a = 11.2532(1) Å, c = 16.2351(4) Å, and V = 2055.92(6) Å3, Z = 4, R
gt
(F) = 0.0347, wR
ref
(F
2) = 0.0931, T = 150 K.
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Affiliation(s)
- Andrea V. Hoffmann
- Technische Universität München, Fakultät für Chemie , Anorganische Chemie mit Schwerpunkt Neue Materialien, Lichtenbergstr. 4 85747 Garching , Germany
| | - Viktor Hlukhyy
- Technische Universität München, Fakultät für Chemie , Anorganische Chemie mit Schwerpunkt Neue Materialien, Lichtenbergstr. 4 85747 Garching , Germany
| | - Thomas F. Fässler
- Technische Universität München, Fakultät für Chemie , Anorganische Chemie mit Schwerpunkt Neue Materialien, Lichtenbergstr. 4 85747 Garching , Germany
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3
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Hoffmann AV, Fässler TF, Hlukhyy V. Ca
14
FeAs
11
– A structure comprising structural motifs of iron‐based superconductors and Ca‐As Zintl phases. Z Anorg Allg Chem 2022. [DOI: 10.1002/zaac.202200168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Andrea V. Hoffmann
- Department of Chemistry Chair of Inorganic Chemistry with Focus on Novel Materials Technical University of Munich,<street/ Lichtenbergstr. 4 D-85747 Garching Germany
| | - Thomas F. Fässler
- Department of Chemistry Chair of Inorganic Chemistry with Focus on Novel Materials Technical University of Munich,<street/ Lichtenbergstr. 4 D-85747 Garching Germany
| | - Viktor Hlukhyy
- Department of Chemistry Chair of Inorganic Chemistry with Focus on Novel Materials Technical University of Munich,<street/ Lichtenbergstr. 4 D-85747 Garching Germany
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4
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Pavlyuk N, Chumak I, Pavlyuk V, Ehrenberg H, Indris S, Hlukhyy V, Pöttgen R. Mg 2MnGa 3 – An orthorhombically distorted superstructure variant of the hexagonal Laves phase MgZn 2. Zeitschrift für Naturforschung B 2022. [DOI: 10.1515/znb-2022-0109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The Laves phase Mg2MnGa3 was synthesized from the elements by arc-melting and subsequent annealing in a silica ampoule at T = 670 K. The structure of Mg2MnGa3 was refined from single-crystal X-ray diffractometer data: URe2 type, Cmcm, a = 543.24(1), b = 869.59(3), c = 858.58(2) pm, wR2 = 0.0556, 273 F
2 values and 24 variables. The manganese and gallium atoms form a three-dimensional network of corner- and face-sharing MnGa3 tetrahedra that derive as a ternary ordering variant from the hexagonal Laves phase MgZn2. The structures of the distortion and coloring variants, i.e., MgZn2, URe2, Mg2Cu3Si and Mg2MnGa3 are discussed on the basis of a Bärnighausen tree. The electronic structure calculation data indicate that in addition to the metallic type of bonding an additional covalent interaction appears between the Ga–Ga and Mn–Ga atoms.
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Affiliation(s)
- Nazar Pavlyuk
- Department of Inorganic Chemistry , Ivan Franko National University of Lviv , Kyryla i Mefodiya Street 6, 79005 Lviv , Ukraine
- Częstochowa Jan Długosz University in Częstochowa, Institute of Chemistry , al. Armii Krajowej 13/15, 42200 , Częstochowa , Poland
| | - Ihor Chumak
- Department of Inorganic Chemistry , Ivan Franko National University of Lviv , Kyryla i Mefodiya Street 6, 79005 Lviv , Ukraine
| | - Volodymyr Pavlyuk
- Department of Inorganic Chemistry , Ivan Franko National University of Lviv , Kyryla i Mefodiya Street 6, 79005 Lviv , Ukraine
- Częstochowa Jan Długosz University in Częstochowa, Institute of Chemistry , al. Armii Krajowej 13/15, 42200 , Częstochowa , Poland
| | - Helmut Ehrenberg
- Karlsruher Institut für Technologie (KIT), Institut für Angewandte Materialien (IAM-ESS) , Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen , Germany
| | - Sylvio Indris
- Karlsruher Institut für Technologie (KIT), Institut für Angewandte Materialien (IAM-ESS) , Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen , Germany
| | - Viktor Hlukhyy
- Department of Chemistry , Technische Universität München , Lichtenbergstrasse 4, 85747 Garching , Germany
| | - Rainer Pöttgen
- Institut für Anorganische und Analytische Chemie, Universität Münster , Corrensstrasse 30, 48149 Münster , Germany
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5
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Yang H, Hausmann JN, Hlukhyy V, Braun T, Laun K, Zebger I, Driess M, Menezes PW. An Intermetallic CaFe
6
Ge
6
Approach to Unprecedented Ca−Fe−O Electrocatalyst for Efficient Alkaline Oxygen Evolution Reaction. ChemCatChem 2022. [DOI: 10.1002/cctc.202200777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hongyuan Yang
- Department of Chemistry: Metalorganics and Inorganic Materials Technical University of Berlin Straße des 17 Juni 135. Sekr. C2 10623 Berlin Germany
| | - J. Niklas Hausmann
- Department of Chemistry: Metalorganics and Inorganic Materials Technical University of Berlin Straße des 17 Juni 135. Sekr. C2 10623 Berlin Germany
| | - Viktor Hlukhyy
- Department of Chemistry Technical University of Munich Lichtenbergstraße 4 85747 Garching Germany
| | - Thomas Braun
- Department of Chemistry Technical University of Munich Lichtenbergstraße 4 85747 Garching Germany
| | - Konstantin Laun
- Department of Chemistry: Physical Chemistry/Biophysical Chemistry Technische Universität Berlin Straße des 17 Juni 135, Sekr. PC14 10623 Berlin Germany
| | - Ingo Zebger
- Department of Chemistry: Physical Chemistry/Biophysical Chemistry Technische Universität Berlin Straße des 17 Juni 135, Sekr. PC14 10623 Berlin Germany
| | - Matthias Driess
- Department of Chemistry: Metalorganics and Inorganic Materials Technical University of Berlin Straße des 17 Juni 135. Sekr. C2 10623 Berlin Germany
| | - Prashanth W. Menezes
- Department of Chemistry: Metalorganics and Inorganic Materials Technical University of Berlin Straße des 17 Juni 135. Sekr. C2 10623 Berlin Germany
- Materials Chemistry Group for Thin Film Catalysis – CatLab Helmholtz-Zentrum Berlin für Materialien und Energie Albert-Einstein-Str. 15 12489 Berlin Germany
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6
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Yang H, Hausmann JN, Hlukhyy V, Braun T, Laun K, Zebger I, Driess M, Menezes PW. An Intermetallic CaFe6Ge6 Approach to Unprecedented Ca‐Fe‐O Electrocatalyst for Efficient Alkaline Oxygen Evolution Reaction. ChemCatChem 2022. [DOI: 10.1002/cctc.202200293] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | | | - Viktor Hlukhyy
- Technical University of Munich: Technische Universitat Munchen Chemistry Lichtenbergstraße 4Garching 85747 Garching GERMANY
| | - Thomas Braun
- Technical University of Munich: Technische Universitat Munchen Chemistry GERMANY
| | | | - Ingo Zebger
- Technical University of Berlin: Technische Universitat Berlin Chemistry GERMANY
| | - Matthias Driess
- Technische Universitat Graz Chemistry Strasse des 17. Juni 135, Sekr. C2Technische Universität BerlinBerlin D-10623 Berlin GERMANY
| | - Prashanth W. Menezes
- Technische Universitat Berlin Chemistry Strasse des 17. Juni 135, Sekr. C2 10623 Berlin GERMANY
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7
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Hausmann JN, Beltrán-Suito R, Mebs S, Hlukhyy V, Fässler TF, Dau H, Driess M, Menezes PW. Evolving Highly Active Oxidic Iron(III) Phase from Corrosion of Intermetallic Iron Silicide to Master Efficient Electrocatalytic Water Oxidation and Selective Oxygenation of 5-Hydroxymethylfurfural. Adv Mater 2021; 33:e2008823. [PMID: 34048605 DOI: 10.1002/adma.202008823] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 04/01/2021] [Indexed: 06/12/2023]
Abstract
In a green energy economy, electrocatalysis is essential for chemical energy conversion and to produce value added chemicals from regenerative resources. To be widely applicable, an electrocatalyst should comprise the Earth's crust's most abundant elements. The most abundant 3d metal, iron, with its multiple accessible redox states has been manifold applied in chemocatalytic processes. However, due to the low conductivity of FeIII Ox Hy phases, its applicability for targeted electrocatalytic oxidation reactions such as water oxidation is still limited. Herein, it is shown that iron incorporated in conductive intermetallic iron silicide (FeSi) can be employed to meet this challenge. In contrast to silicon-poor iron-silicon alloys, intermetallic FeSi possesses an ordered structure with a peculiar bonding situation including covalent and ionic contributions together with conducting electrons. Using in situ X-ray absorption and Raman spectroscopy, it could be demonstrated that, under the applied corrosive alkaline conditions, the FeSi partly forms a unique, oxidic iron(III) phase consisting of edge and corner sharing [FeO6 ] octahedra together with oxidized silicon species. This phase is capable of driving the oxyge evolution reaction (OER) at high efficiency under ambient and industrially relevant conditions (500 mA cm-2 at 1.50 ± 0.025 VRHE and 65 °C) and to selectively oxygenate 5-hydroxymethylfurfural (HMF).
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Affiliation(s)
- J Niklas Hausmann
- Department of Chemistry: Metalorganics and Inorganic Materials, Technical University of Berlin, Straße des 17 Juni 135. Sekr. C2, 10623, Berlin, Germany
| | - Rodrigo Beltrán-Suito
- Department of Chemistry: Metalorganics and Inorganic Materials, Technical University of Berlin, Straße des 17 Juni 135. Sekr. C2, 10623, Berlin, Germany
| | - Stefan Mebs
- Department of Physics, Free University of Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Viktor Hlukhyy
- Department of Chemistry, Technical University of Munich, Lichtenbergstraße 4, 85747, Garching, Germany
| | - Thomas F Fässler
- Department of Chemistry, Technical University of Munich, Lichtenbergstraße 4, 85747, Garching, Germany
| | - Holger Dau
- Department of Physics, Free University of Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Matthias Driess
- Department of Chemistry: Metalorganics and Inorganic Materials, Technical University of Berlin, Straße des 17 Juni 135. Sekr. C2, 10623, Berlin, Germany
| | - Prashanth W Menezes
- Department of Chemistry: Metalorganics and Inorganic Materials, Technical University of Berlin, Straße des 17 Juni 135. Sekr. C2, 10623, Berlin, Germany
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8
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Zaremba N, Muts I, Pavlyuk V, Hlukhyy V, Pöttgen R, Kaczorowski D, Zaremba V. SmPt2In2 – a new ternary indide with a Pt–In polyanionic framework. Z KRIST-CRYST MATER 2021. [DOI: 10.1515/zkri-2021-2028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Single crystals of a new samarium platinum indide have been synthesized in a high-frequency furnace under flowing argon atmosphere. The crystal structure of SmPt2In2 was determined from single-crystal X-ray data (R1 = 0.0416 for 1049 F values and 63 variables). It belongs to the CePt2In2 structure type with the following crystallographic parameters: P21/m, mP20, Z = 4, a = 10.0561(8), b = 4.4214(2), c = 10.1946(8) Å, β = 116.492(5)°, V = 405.68(5) Å3. Physical properties were studied and the crystal chemical discussion is supported by electronic structure calculations.
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Affiliation(s)
- Nazar Zaremba
- Department of Chemistry , Technische Universität München , Lichtenbergstrasse 4 , 85747 Garching , Germany
- Department of Inorganic Chemistry , Ivan Franko National University of Lviv , Kyryla and Mefodiya Street 6 , 79005 Lviv , Ukraine
| | - Ihor Muts
- Department of Inorganic Chemistry , Ivan Franko National University of Lviv , Kyryla and Mefodiya Street 6 , 79005 Lviv , Ukraine
- Institut für Anorganische und Analytische Chemie, Universität Münster , Corrensstrasse 30 , 48149 Münster , Germany
| | - Volodymyr Pavlyuk
- Department of Inorganic Chemistry , Ivan Franko National University of Lviv , Kyryla and Mefodiya Street 6 , 79005 Lviv , Ukraine
- Institute of Chemistry, Częstochowa Jan Długosz University in Częstochowa , al. Armii Krajowej 13/15 , 42200 Częstochowa , Poland
| | - Viktor Hlukhyy
- Department of Chemistry , Technische Universität München , Lichtenbergstrasse 4 , 85747 Garching , Germany
| | - Rainer Pöttgen
- Institut für Anorganische und Analytische Chemie, Universität Münster , Corrensstrasse 30 , 48149 Münster , Germany
| | - Dariusz Kaczorowski
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences , ul. Okólna 2 , 50-422 Wroclaw , Poland
| | - Vasyl Zaremba
- Department of Inorganic Chemistry , Ivan Franko National University of Lviv , Kyryla and Mefodiya Street 6 , 79005 Lviv , Ukraine
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9
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Eickhoff H, Hlukhyy V, Fässler TF. Cover Feature: Na
2
Ge
3
P
3
and Na
5
Ge
7
P
5
Comprising Heteroatomic Polyanions Mimicking the Structure of Fibrous Red Phosphorus (Z. Anorg. Allg. Chem. 22/2020). Z Anorg Allg Chem 2020. [DOI: 10.1002/zaac.202070223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Henrik Eickhoff
- Department of Chemistry Technische Universität München Lichtenbergstrasse 4 85747 Garching bei München Germany
| | - Viktor Hlukhyy
- Department of Chemistry Technische Universität München Lichtenbergstrasse 4 85747 Garching bei München Germany
| | - Thomas F. Fässler
- Department of Chemistry Technische Universität München Lichtenbergstrasse 4 85747 Garching bei München Germany
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10
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Eickhoff H, Hlukhyy V, Fässler TF. Na
2
Ge
3
P
3
and Na
5
Ge
7
P
5
Comprising Heteroatomic Polyanions Mimicking the Structure of Fibrous Red Phosphorus. Z Anorg Allg Chem 2020. [DOI: 10.1002/zaac.202000316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Henrik Eickhoff
- Department of Chemistry Technische Universität München Lichtenbergstrasse 4 85747 Garching bei München Germany
| | - Viktor Hlukhyy
- Department of Chemistry Technische Universität München Lichtenbergstrasse 4 85747 Garching bei München Germany
| | - Thomas F. Fässler
- Department of Chemistry Technische Universität München Lichtenbergstrasse 4 85747 Garching bei München Germany
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11
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Boyko M, Hlukhyy V, Jin H, Dums J, Fässler TF. Extracting [Pd@Sn
9
]
4–
and [Rh@Pb
9
]
4–
Clusters from their Binary Alloys Using “
Metal Scissors”. Z Anorg Allg Chem 2020. [DOI: 10.1002/zaac.202000061] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Marina Boyko
- Department of Chemistry Technische Universität München Lichtenbergstraße 4 85747 Garching Germany
| | - Viktor Hlukhyy
- Department of Chemistry Technische Universität München Lichtenbergstraße 4 85747 Garching Germany
| | - Hanpeng Jin
- Department of Chemistry Technische Universität München Lichtenbergstraße 4 85747 Garching Germany
| | - Jasmin Dums
- Department of Chemistry Technische Universität München Lichtenbergstraße 4 85747 Garching Germany
| | - Thomas F. Fässler
- Department of Chemistry Technische Universität München Lichtenbergstraße 4 85747 Garching Germany
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12
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Affiliation(s)
- Saskia Stegmaier
- Department of Chemistry Technische Universität München Lichtenbergstraße 4 85747 Garching Germany
| | - Viktor Hlukhyy
- Department of Chemistry Technische Universität München Lichtenbergstraße 4 85747 Garching Germany
| | - Thomas F. Fässler
- Department of Chemistry Technische Universität München Lichtenbergstraße 4 85747 Garching Germany
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13
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Boyko M, Hlukhyy V, Fässler TF. K
10
Ga
3
Bi
6.65
– The First Compound in the Ternary
A
‐Ga‐Bi System Comprising Cyclic Tris‐meta Borate‐Analogous [Ga
3
Bi
6
]
9–
Units and Bi
2
Dumbbells. Z Anorg Allg Chem 2020. [DOI: 10.1002/zaac.201900292] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Marina Boyko
- Department Chemie Technische Universität München Lichtenbergstr. 4 85747 Garching / Germany
| | - Viktor Hlukhyy
- Department Chemie Technische Universität München Lichtenbergstr. 4 85747 Garching / Germany
| | - Thomas F. Fässler
- Department Chemie Technische Universität München Lichtenbergstr. 4 85747 Garching / Germany
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14
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Chakraborty B, Beltrán‐Suito R, Hlukhyy V, Schmidt J, Menezes PW, Driess M. Crystalline Copper Selenide as a Reliable Non-Noble Electro(pre)catalyst for Overall Water Splitting. ChemSusChem 2020; 13:3222-3229. [PMID: 32196943 PMCID: PMC7318255 DOI: 10.1002/cssc.202000445] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 03/18/2020] [Indexed: 05/31/2023]
Abstract
Electrochemical water splitting remains a frontier research topic in the quest to develop artificial photosynthetic systems by using noble metal-free and sustainable catalysts. Herein, a highly crystalline CuSe has been employed as active electrodes for overall water splitting (OWS) in alkaline media. The pure-phase klockmannite CuSe deposited on highly conducting nickel foam (NF) electrodes by electrophoretic deposition (EPD) displayed an overpotential of merely 297 mV for the reaction of oxygen evolution (OER) at a current density of 10 mA cm-2 whereas an overpotential of 162 mV was attained for the hydrogen evolution reaction (HER) at the same current density, superseding the Cu-based as well as the state-of-the-art RuO2 and IrO2 catalysts. The bifunctional behavior of the catalyst has successfully been utilized to fabricate an overall water-splitting device, which exhibits a low cell voltage (1.68 V) with long-term stability. Post-catalytic analyses of the catalyst by ex-situ microscopic, spectroscopic, and analytical methods confirm that under both OER and HER conditions, the crystalline and conductive CuSe behaves as an electro(pre)catalyst forming a highly reactive in situ crystalline Cu(OH)2 overlayer (electro(post)catalyst), which facilitates oxygen (O2 ) evolution, and an amorphous Cu(OH)2 /CuOx active surface for hydrogen (H2 ) evolution. The present study demonstrates a distinct approach to produce highly active copper-based catalysts starting from copper chalcogenides and could be used as a basis to enhance the performance in durable bifunctional overall water splitting.
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Affiliation(s)
- Biswarup Chakraborty
- Department of Chemistry: Metalorganics and Inorganic MaterialsTechnische Universität BerlinStraße des 17 Juni 135, Sekr. C210623BerlinGermany
| | - Rodrigo Beltrán‐Suito
- Department of Chemistry: Metalorganics and Inorganic MaterialsTechnische Universität BerlinStraße des 17 Juni 135, Sekr. C210623BerlinGermany
| | - Viktor Hlukhyy
- Department ChemieTechnische Universität MünchenLichtenbergstraße 485747GarchingGermany
| | - Johannes Schmidt
- Department of Chemistry: Functional MaterialsTechnische Universität BerlinHardenbergstraße 4010623BerlinGermany
| | - Prashanth W. Menezes
- Department of Chemistry: Metalorganics and Inorganic MaterialsTechnische Universität BerlinStraße des 17 Juni 135, Sekr. C210623BerlinGermany
| | - Matthias Driess
- Department of Chemistry: Metalorganics and Inorganic MaterialsTechnische Universität BerlinStraße des 17 Juni 135, Sekr. C210623BerlinGermany
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15
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Braun T, Hlukhyy V. CaFe2Ge2 with square-planar iron layers – Closing a gap in the row of CaT2Ge2 (T = Mn–Zn). J SOLID STATE CHEM 2019. [DOI: 10.1016/j.jssc.2019.05.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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16
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Zaremba N, Schepilov Y, Nychyporuk G, Hlukhyy V, Pavlyuk V. La3Ni4Al2: a new layered aluminide. Z KRIST-CRYST MATER 2019. [DOI: 10.1515/zkri-2019-0011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The new ternary compound La3Ni4Al2 has been synthesized and the crystal structure has been studied by X-ray single crystal diffraction. La3Ni4Al2 is the first aluminide, crystallizing in the La3Ni4Ga2-type. The crystal structure of La3Ni4Al2 consists of La-layers and hetero-atomic Ni/Al layers, sequentially alternating along the a axis (pseudo-hexagonal c axis). According to electronic structure calculations using the tight-binding linear muffin-tin orbital method in the atomic-sphere approximation (TB-LMTO-ASA), strong Al–Ni interactions have been established. The coordination polyhedra for the Al atoms are cuboctahedra, whereas the bicapped square prism and bicapped square antiprism are typical for nickel atoms. The lanthanum atoms are enclosed in pseudo Frank–Kasper polyhedra.
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Affiliation(s)
- Nazar Zaremba
- Department of Inorganic Chemistry , Ivan Franko Lviv National University , Kyryla, Mefodiya Street 6 , 79005, Lviv , Ukraine
- Department of Chemistry , Technische Universität München , Lichtenbergstraβe 4 , D-85747 Garching , Germany
| | - Yurij Schepilov
- Department of Inorganic Chemistry , Ivan Franko Lviv National University , Kyryla, Mefodiya Street 6, 79005 , Lviv , Ukraine
| | - Galyna Nychyporuk
- Department of Inorganic Chemistry , Ivan Franko Lviv National University , Kyryla, Mefodiya Street 6, 79005 , Lviv , Ukraine
| | - Viktor Hlukhyy
- Department of Chemistry , Technische Universität München , Lichtenbergstraβe 4 , D-85747 Garching , Germany
| | - Volodymyr Pavlyuk
- Department of Inorganic Chemistry , Ivan Franko Lviv National University , Kyryla, Mefodiya Street 6, 79005 , Lviv , Ukraine
- Institute of Chemistry, Environment Protection and Biotechnology, Jan Dlugosz University , Alley Armii Krajowej 13/15 , 42-200 Czestochowa , Poland
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17
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Braun T, Zeitz S, Hlukhyy V. SrNi 2
Si and BaNi 2
Si - New Layered Silicides with Fused Nickel Six-membered Rings in a Boat Conformation. Z Anorg Allg Chem 2019. [DOI: 10.1002/zaac.201800500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Thomas Braun
- Department of Chemistry; Technische Universität München; Lichtenbergstr. 4 85747 Garching Germany
| | - Sabine Zeitz
- Department of Chemistry; Technische Universität München; Lichtenbergstr. 4 85747 Garching Germany
| | - Viktor Hlukhyy
- Department of Chemistry; Technische Universität München; Lichtenbergstr. 4 85747 Garching Germany
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18
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Muts IR, Hlukhyy V, Galadzhun YV, Solokha P, Seidel S, Hoffmann RD, Pöttgen R, Zaremba VI. SrPt 3In 2– an orthorhombically distorted coloring variant of SrIn 5. Dalton Trans 2019; 48:11411-11420. [DOI: 10.1039/c9dt01808e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The new intermetallic phase SrPt3In2was synthesized by induction-melting of the elements in a sealed tantalum ampoule followed by long-term annealing for crystal growth.
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Affiliation(s)
- Ihor R. Muts
- Department of Life Safety
- Ivan Franko National University of Lviv
- 79000 Lviv
- Ukraine
| | - Viktor Hlukhyy
- Department of Chemistry
- Technische Universität München
- 85747 Garching
- Germany
| | | | - Pavlo Solokha
- Dipartimento di Chimica e Chimica Industriale
- Università degli Studi di Genova
- 16146 Genova
- Italy
| | - Stefan Seidel
- Institut für Anorganische und Analytische Chemie
- Universität Münster
- D-48149 Münster
- Germany
| | - Rolf-Dieter Hoffmann
- Institut für Anorganische und Analytische Chemie
- Universität Münster
- D-48149 Münster
- Germany
| | - Rainer Pöttgen
- Institut für Anorganische und Analytische Chemie
- Universität Münster
- D-48149 Münster
- Germany
| | - Vasyl’ I. Zaremba
- Inorganic Chemistry Department
- Ivan Franko National University of Lviv
- 79005 Lviv
- Ukraine
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19
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Affiliation(s)
- Volodymyr Baran
- Department of Chemistry; Technische Universität München; Lichtenbergstr. 4 85747 Garching Germany
| | - Viktor Hlukhyy
- Department of Chemistry; Technische Universität München; Lichtenbergstr. 4 85747 Garching Germany
| | - Thomas. F. Fässler
- Department of Chemistry; Technische Universität München; Lichtenbergstr. 4 85747 Garching Germany
- Heinz Maier-Leibnitz Zentrum; Technische Universität München; Lichtenbergstr. 1 85747 Garching Germany
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20
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Abstract
The crystal structure of CaFe4Al8 was studied by X-ray single crystal and powder diffraction as well as high-resolution neutron powder diffraction. CaFe4Al8 crystallizes with a tetragonal CeMn4Al8-type structure, an ordered variant of the ThMn12-type (Pearson symbol tI26, space group I4/ mmm, a = 8.777(1), c = 5.077(1) Å). Similarly to the well-known A15-type superconductors, the structure of CaFe4Al8 contains one-dimensional chains of d-metal atoms, which are parallel to the crystallographic fourfold axis. CaFe4Al8 is paramagnetic at room temperature and exhibits long-range antiferromagnetic ordering at about 180 K, combined with a short-range ordered spin arrangement. The magnetic structure, determined by powder neutron diffraction at 4 K, shows that the magnetic moments on the Fe atoms form mirror-inverted chains along the c-direction and are slightly canted from the axis.
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Affiliation(s)
- Volodymyr Gvozdetskyi
- Department of Chemistry , Technische Universität München , Lichtenbergstrasse 4 , 85747 Garching , Germany.,Department of Inorganic Chemistry , Ivan Franko National University of Lviv , Kyryla i Mefodiya Street 6 , 79005 Lviv , Ukraine
| | - Anatoliy Senyshyn
- Heinz Maier-Leibnitz Zentrum , Technische Universität München , Lichtenbergstrasse 1 , 85747 Garching , Germany
| | - Roman Gladyshevskii
- Department of Inorganic Chemistry , Ivan Franko National University of Lviv , Kyryla i Mefodiya Street 6 , 79005 Lviv , Ukraine
| | - Viktor Hlukhyy
- Department of Chemistry , Technische Universität München , Lichtenbergstrasse 4 , 85747 Garching , Germany
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21
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Oliynyk AO, Adutwum LA, Rudyk BW, Pisavadia H, Lotfi S, Hlukhyy V, Harynuk JJ, Mar A, Brgoch J. Disentangling Structural Confusion through Machine Learning: Structure Prediction and Polymorphism of Equiatomic Ternary Phases ABC. J Am Chem Soc 2017; 139:17870-17881. [DOI: 10.1021/jacs.7b08460] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Anton O. Oliynyk
- Department
of Chemistry, University of Houston, Houston, Texas 77204, United States
- Department
of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Lawrence A. Adutwum
- Department
of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Brent W. Rudyk
- Department
of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Harshil Pisavadia
- Department
of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Sogol Lotfi
- Department
of Chemistry, University of Houston, Houston, Texas 77204, United States
| | - Viktor Hlukhyy
- Department
of Chemistry, Technische Universität München, Garching 85747, Germany
| | - James J. Harynuk
- Department
of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Arthur Mar
- Department
of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Jakoah Brgoch
- Department
of Chemistry, University of Houston, Houston, Texas 77204, United States
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22
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Zaremba N, Muts I, Hlukhyy V, Stein S, Rodewald UC, Pavlyuk V, Pöttgen R, Zaremba V. Equiatomic indides REIrIn ( RE=La, Pr, Nd, Er–Yb) – Crystal and electronic structure. Zeitschrift für Naturforschung B 2017. [DOI: 10.1515/znb-2017-0086] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The equiatomic rare earth iridium indides REIrIn (RE=La, Pr, Nd, Er–Yb) were synthesized by reaction of the elements in induction or muffle furnaces and were characterized through X-ray powder patterns. The structures of LaIr0.86In1.14, PrIr0.89In1.11, NdIr0.94In1.06, ErIrIn (all ZrNiAl type, P6̅2m), and YbIrIn (TiNiSi type, Pnma) were refined from single crystal X-ray diffractometer data. Refinements of the occupancy parameters revealed small degrees of solid solutions with indium substitution on the iridium sites. Chemical bonding analyses and electronic structure calculations indicate the dominance of metallic bonding in addition to partial ionic interactions between the cations and polyanions, as well as covalent contributions between the indium and iridium atoms.
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Affiliation(s)
- Nazar Zaremba
- Department of Inorganic Chemistry , Ivan Franko National University of Lviv , Kyryla i Mefodiya 6 , 79005 Lviv , Ukraine
- Fakultät für Chemie , Technische Universität München , Lichtenbergstrasse 4 , 85748 Garching b. München , Germany
| | - Ihor Muts
- Department of Inorganic Chemistry , Ivan Franko National University of Lviv , Kyryla i Mefodiya 6 , 79005 Lviv , Ukraine
| | - Viktor Hlukhyy
- Fakultät für Chemie , Technische Universität München , Lichtenbergstrasse 4 , 85748 Garching b. München , Germany
| | - Sebastian Stein
- Institut für Anorganische und Analytische Chemie , Universität Münster , Corrensstrasse 30 , 48149 Münster , Germany
| | - Ute Ch. Rodewald
- Institut für Anorganische und Analytische Chemie , Universität Münster , Corrensstrasse 30 , 48149 Münster , Germany
| | - Volodymyr Pavlyuk
- Department of Inorganic Chemistry , Ivan Franko National University of Lviv , Kyryla i Mefodiya 6 , 79005 Lviv , Ukraine
- Institute of Chemistry, Environmental Protection and Biotechnology , Częstochowa Jan Długosz University , al. Armii Krajowej 13/15 , Częstochowa 42200 , Poland
| | - Rainer Pöttgen
- Institut für Anorganische und Analytische Chemie , Universität Münster , Corrensstrasse 30 , 48149 Münster , Germany
| | - Vasyl Zaremba
- Department of Inorganic Chemistry , Ivan Franko National University of Lviv , Kyryla i Mefodiya 6 , 79005 Lviv , Ukraine
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23
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Muts I, Kharkhalis A, Hlukhyy V, Kaczorowski D, Rodewald UC, Pöttgen R, Zaremba VI. Ternary aurides La4In3Au10 and Yb4In3Au10 and platinide U4In3Pt10 with ordered Zr7Ni10 type structure. J SOLID STATE CHEM 2017. [DOI: 10.1016/j.jssc.2017.05.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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24
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Siggelkow L, Hlukhyy V, Fässler TF. The Influence of the Valence Electron Concentration on the Structural Variation of the Laves Phases MgNi 2-x
Ge
x
. Z Anorg Allg Chem 2017. [DOI: 10.1002/zaac.201700180] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Lisa Siggelkow
- Department of Chemistry; Technische Universität München; Lichtenbergstraße 4 85747 Garching Germany
| | - Viktor Hlukhyy
- Department of Chemistry; Technische Universität München; Lichtenbergstraße 4 85747 Garching Germany
| | - Thomas F. Fässler
- Department of Chemistry; Technische Universität München; Lichtenbergstraße 4 85747 Garching Germany
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25
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Hlukhyy V, Trots D, Fässler TF. First-Order Phase Transition in BaNi 2Ge 2 and the Influence of the Valence Electron Count on Distortion of the ThCr 2Si 2 Structure Type. Inorg Chem 2017; 56:1173-1185. [PMID: 28085271 DOI: 10.1021/acs.inorgchem.6b02190] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Structural instability has a strong influence on the understanding of superconductivity in iron-containing 122 phases. Similar to the 122 iron-based high-temperature superconductors, the intermetallic compound BaNi2Ge2 undergoes an orthorhombic-to-tetragonal structural phase transition. The compound was prepared by arc-melting mixtures of the elements under an argon atmosphere. Single crystals were obtained by a special heat treatment in a welded tantalum ampule. The crystal structure of the compound was investigated by powder and single-crystal X-ray diffraction. Differential thermal analysis of BaNi2Ge2 showed a reversible phase transition at ca. 480 °C. In situ temperature-dependent synchrotron powder X-ray diffraction studies revealed that below 480 °C the crystal structure of BaNi2Ge2 is orthorhombic [own structure type, space group Pnma, a = 8.3852(4) Å, b = 11.3174(8) Å, and c = 4.2902(9) Å at 30 °C] and the high-temperature phase above 510 °C belongs to the tetragonal ThCr2Si2-type structure [space group I4/mmm, a = 4.2664(1) Å, and c = 11.2537(3) Å at 510 °C]. The reversible first-order low-temperature ↔ high-temperature phase transition around 480 °C is associated with distortion of the [Ni2Ge2] layer of low-temperature modification. The anisotropy of thermal expansion of the unit cell in BaNi2Ge2 was analyzed. The crystal chemistry and chemical bonding are discussed in terms of linear muffin-tin orbital band structure calculations and a topological analysis using the electron localization function. In related compounds, the level of distortion of the uncollapsed tetragonal ThCr2Si2-type structure depends on the valence electron count (VEC).
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Affiliation(s)
- Viktor Hlukhyy
- Department of Chemistry, Technische Universität München , Lichtenbergstrasse 4, 85747 Garching, Germany
| | - Dmytro Trots
- Hamburger Synchrotronstrahlungslabor, DESY , Notkestrasse 85, 22607 Hamburg, Germany
| | - Thomas F Fässler
- Department of Chemistry, Technische Universität München , Lichtenbergstrasse 4, 85747 Garching, Germany
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26
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Hoffmann AV, Hlukhyy V, Fässler TF. Ca4As3 - a new binary calcium arsenide. Acta Crystallogr E Crystallogr Commun 2015; 71:1548-50. [PMID: 26870427 PMCID: PMC4719836 DOI: 10.1107/s2056989015022367] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 11/23/2015] [Indexed: 11/18/2022]
Abstract
The binary compound Ca4As3crystallizes in the Ba4P3 structure type and is thus a homologue of isotypic Sr4As3. The As atoms are connected by a single bond thus this calcium arsenide is a Zintl phase. The crystal structure of the binary compound tetracalcium triarsenide, Ca4As3, was investigated by single-crystal X-ray diffraction. Ca4As3 crystallizes in the Ba4P3 structure type and is thus a homologue of isotypic Sr4As3. The unit cell contains 32 Ca2+ cations, 16 As3− isolated anions and four centrosymmetric [As2]4– dumbbells. The As atoms in each of the dumbbells are connected by a single bond, thus this calcium arsenide is a Zintl phase.
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Affiliation(s)
- Andrea V Hoffmann
- Technische Universität München, Department of Chemistry, Lichtenbergstr. 4, 85747 Garching, Germany
| | - Viktor Hlukhyy
- Technische Universität München, Department of Chemistry, Lichtenbergstr. 4, 85747 Garching, Germany
| | - Thomas F Fässler
- Technische Universität München, Department of Chemistry, Lichtenbergstr. 4, 85747 Garching, Germany
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27
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28
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Klein W, Jin H, Hlukhyy V, Fässler TF. 'Pd20Sn13' revisited: crystal structure of Pd6.69Sn4.31. Acta Crystallogr E Crystallogr Commun 2015; 71:807-9. [PMID: 26279872 PMCID: PMC4518917 DOI: 10.1107/s2056989015011366] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2015] [Accepted: 06/10/2015] [Indexed: 11/10/2022]
Abstract
The crystal structure of the title compound, previously reported as ‘Pd20Sn13’ on basis of powder X-ray data, was redetermined on basis of single-crystal X-ray data, resulting in a model with higher precision and accuracy. The crystal structure of the title compound was previously reported with composition ‘Pd20Sn13’ [Sarah et al. (1981 ▸). Z. Metallkd, 72, 517–520]. For the original structure model, as determined from powder X-ray data, atomic coordinates from the isostructural compound Ni13Ga3Ge6 were transferred. The present structure determination, resulting in a composition Pd6.69Sn4.31, is based on single crystal X-ray data and includes anisotropic displacement parameters for all atoms as well as standard uncertainties for the atomic coordinates, leading to higher precision and accuracy for the structure model. Single crystals of the title compound were obtained via a solid-state reaction route, starting from the elements. The crystal structure can be derived from the AlB2 type of structure after removing one eighth of the atoms at the boron positions and shifting adjacent atoms in the same layer in the direction of the voids. One atomic site is partially occupied by both elements with a Pd:Sn ratio of 0.38 (3):0.62 (3). One Sn and three Pd atoms are located on special positions with site symmetry 2. (Wyckoff letter 3a and 3b).
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Affiliation(s)
- Wilhelm Klein
- Technische Universität München, Department of Chemistry, Lichtenbergstrasse 4, 85747 Garching, Germany
| | - Hanpeng Jin
- Technische Universität München, Department of Chemistry, Lichtenbergstrasse 4, 85747 Garching, Germany
| | - Viktor Hlukhyy
- Technische Universität München, Department of Chemistry, Lichtenbergstrasse 4, 85747 Garching, Germany
| | - Thomas F Fässler
- Technische Universität München, Department of Chemistry, Lichtenbergstrasse 4, 85747 Garching, Germany
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29
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Abstract
In view of the search for and understanding of new materials for energy storage, the Li-Ag-Ge phase diagram has been investigated. High-temperature syntheses of Li with reguli of premelted Ag and Ge led to the two new compounds Li(2)AgGe and Li(2.80-x)AgGe(2) (x = 0.27). The compounds were characterized by single-crystal X-ray diffraction. Both compounds show diamond-polytype-like polyanionic substructures with tetrahedrally coordinated Ag and Ge atoms. The Li ions are located in the channels provided by the network. The compound Li(2)AgGe crystallizes in the space group R3̅m (No. 166) with lattice parameters of a = 4.4424(6) Å and c = 42.7104(6) Å. All atomic positions are fully occupied and ordered. Li(2.80-x)AgGe(2) crystallizes in the space group I4(1)/a (No. 88) with lattice parameters of a = 9.7606(2) Å and c = 18.4399(8) Å. The Ge substructure consists of unique (1)(∞)[Ge(10)] chains that are interconnected by Ag atoms to build a three-dimensional network. In the channels of this diamond-like network, not all of the possible positions are occupied by Li ions. Li atoms in the neighborhood of the vacancies show considerably enlarged displacement vectors. The occurrence of the vacancy is traced back to short Li-Li distances in the case of the occupation of the vacancy with Li. Both compounds are not electron-precise Zintl phases. The density of states, band structure, and crystal orbital Hamilton population analyses of Li(2.80-x)AgGe(2 )reveal metallic properties, whereas a full occupation of all Li sites leads to an electron-precise Zintl compound within a rigid-band model. Li(2)AgGe reveals metallic character in the ab plane and is a semiconductor with a small band gap along the c direction.
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Affiliation(s)
- Alexander Henze
- Department of Chemistry, Technische Universität München , Lichtenbergstraße 4, 85748 Garching, Germany
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Hlukhyy V, Stegmaier S, van Wüllen L, Fässler TF. Endohedrally Filled [Ni@Sn9]4−and [Co@Sn9]5−Clusters in the Neat Solids Na12Ni1−xSn17and K13−xCo1−xSn17: Crystal Structure and119Sn Solid-State NMR Spectroscopy. Chemistry 2014; 20:12157-64. [DOI: 10.1002/chem.201402318] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Indexed: 11/12/2022]
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Wang JQ, Hlukhyy V, Fässler TF. Sn9
4– Zintl Ions as Reactive Precursor for Neat Solids: Syntheses and Crystal Structures of Rb4[SnTe4], KxCs4–x[SnTe4], and KxCs10–x[Sn4Te12]. Zeitschrift für Naturforschung B 2014. [DOI: 10.1515/znb-2009-11-1210] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The reactions of Zintl ions Sn9
4− formed in ethylenediamine solutions of K2Cs2Sn9 and Rb4Sn9 with elemental tellurium have been investigated. Addition of elemental tellurium to the filtrates of these solutions leads - depending on the reaction conditions - to four different products: Compounds K0.36(1)Cs3.64(1)[SnTe4] (1) and Rb4[SnTe4] (2) contain the tetrahedral anion [SnTe4]4−, and Cs4[Sn2Te7] (3) features the anion [Te2Sn(μ-Te)(μ-Te2)SnTe2]4−, whereas a novel Zintl anion [Sn4Te12]10− is present in compound K0.44(1)Cs9.56(1)[Sn4Te12] (4). Compounds 1, 2 and 4 have been structurally characterized by single-crystal X-ray diffraction
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Affiliation(s)
- Jian-Qiang Wang
- Department Chemie, Technische Universität München, Lichtenbergstraße 4, 85747 Garching, Germany
| | - Viktor Hlukhyy
- Department Chemie, Technische Universität München, Lichtenbergstraße 4, 85747 Garching, Germany
| | - Thomas F. Fässler
- Department Chemie, Technische Universität München, Lichtenbergstraße 4, 85747 Garching, Germany
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Hlukhyy V, Hoffmann AV, Fässler TF. Synthesis, structure and chemical bonding of CaFe2−xRhxSi2 (x=0, 1.32, and 2) and SrCo2Si2. J SOLID STATE CHEM 2013. [DOI: 10.1016/j.jssc.2013.04.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Hlukhyy V, Siggelkow L, Fässler TF. From one to three dimensions: corrugated ∞(1)[NiGe] ribbons as a building block in alkaline earth metal Ae/Ni/Ge phases with crystal structure and chemical bonding in AeNiGe (Ae = Mg, Sr, Ba). Inorg Chem 2013; 52:6905-15. [PMID: 23741964 DOI: 10.1021/ic302681t] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The new equiatomic nickel germanides MgNiGe, SrNiGe, and BaNiGe have been synthesized from the elements in sealed tantalum tubes using a high-frequency furnace. The compounds were investigated by X-ray diffraction both on powders and single crystals. MgNiGe crystallizes with TiNiSi-type structure, space group Pnma, Z = 4, a = 6.4742(2) Å, b = 4.0716(1) Å, c = 6.9426(2) Å, wR2 = 0.033, 305 F(2) values, 20 variable parameters. SrNiGe and BaNiGe are isotypic and crystallize with anti-SnFCl-type structure (Z = 4, Pnma) with a = 5.727(1) Å, b = 4.174(1) Å, c = 11.400(3) Å, wR2 = 0.078, 354 F(2) values, 20 variable parameters for SrNiGe, and a = 5.969(4) Å, b = 4.195(1) Å, c = 11.993(5) Å, wR2 = 0.048, 393 F(2) values, 20 variable parameters for BaNiGe. The increase of the cation size leads to a reduction of the dimensionality of the [NiGe] polyanions. In the MgNiGe structure the nickel and germanium atoms build a ∞(3)[NiGe] network with magnesium atoms in the channels. In SrNiGe and BaNiGe the ∞(1)[NiGe] ribbons are separated by strontium/barium atoms, whereas in the known CaNiGe structure the ribbons are fused to two-dimmensional atom slabs. The crystal chemistry and chemical bonding in AeNiGe (Ae = Mg, Ca, Sr, Ba) are discussed. The experimental results are reconciled with electronic structure calculations performed using the tight-binding linear muffin-tin orbital (TB-LMTO-ASA) method.
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Affiliation(s)
- Viktor Hlukhyy
- Department of Chemistry, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
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Yarema M, Zaremba O, Gladyshevskii R, Hlukhyy V, Fässler TF. R4Ir13Ge9 (R=La, Ce, Pr, Nd, Sm) and RIr3Ge2 (R=La, Ce, Pr, Nd): Crystal structures with nets of Ir atoms. J SOLID STATE CHEM 2012. [DOI: 10.1016/j.jssc.2012.07.055] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Hlukhyy V, He H, Jantke LA, Fässler TF. The Neat Ternary Solid K5−xCo1−xSn9with Endohedral [Co@Sn9]5−Cluster Units: A Precursor for Soluble Intermetalloid [Co2@Sn17]5−Clusters. Chemistry 2012; 18:12000-7. [DOI: 10.1002/chem.201201786] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2012] [Indexed: 11/11/2022]
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Hlukhyy V, Hoffmann A, Fässler TF. New Phases in the 122 Family: Synthesis, Structure and Bonding. Z Anorg Allg Chem 2012. [DOI: 10.1002/zaac.201204106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Slavik H, Hlukhyy V, Fässler TF. Cs11[Ge9]2[TaO4] Double Salt with [Ge9] Clusters. Z Anorg Allg Chem 2012. [DOI: 10.1002/zaac.201204079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Siggelkow L, Hlukhyy V, Fässler TF. Sr7Ge6, Ba7Ge6 and Ba3Sn2 –Three new binary compounds containing dumbbells and four-membered chains of tetrel atoms with considerable Ge–Ge π-bonding character. J SOLID STATE CHEM 2012. [DOI: 10.1016/j.jssc.2012.03.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Hlukhyy V, Siggelkow L, Fässler TF. Ca5Ni17Ge8- A Complex Intermetallic Compound Combining Various Structure Motifs of Alkaline-Earth Nickel Germanides. Z Anorg Allg Chem 2012. [DOI: 10.1002/zaac.201200118] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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42
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Romaka VV, Romaka L, Stadnyk Y, Gvozdetskii V, Gladyshevskii R, Skryabina N, Melnychenko N, Hlukhyy V, Fässler T. Interaction of Vanadium with Iron and Antimony at 870 and 1070 K. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201101210] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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43
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Hlukhyy V, Fässler TF, Ponou S, Lidin S, Ivleva NP, Niessner R. Extreme differences in oxidation states: synthesis and structural analysis of the germanide oxometallates A10[Ge9]2[WO4] as well as A(10+x)[Ge9]2[W(1–x)Nb(x)O4] with A = K and Rb containing [Ge9]4- polyanions. Inorg Chem 2012; 51:4058-65. [PMID: 22409768 DOI: 10.1021/ic202234b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Semitransparent dark-red or ruby-red moisture- and air-sensitive single crystals of A(10+x)[Ge(9)](2)[W(1-x)Nb(x)O(4)] (A = K, Rb; x = 0, 0.35) were obtained by high-temperature solid-state reactions. The crystal structure of the compounds was determined by single-crystal X-ray diffraction experiments. They crystallize in a new structure type (P2(1)/c, Z = 4) with a = 13.908(1) Å, b = 15.909(1) Å, c = 17.383(1) Å, and β = 90.050(6)° for K(10.35(1))[Ge(9)](2)[W(0.65(1))Nb(0.35(1))O(4)]; a = 14.361(3) Å, b = 16.356(3) Å, c = 17.839(4) Å, and β = 90.01(3)° for Rb(10.35(1))[Ge(9)](2)[W(0.65(1))Nb(0.35(1))O(4)]; a = 13.8979(2) Å, b = 15.5390(3) Å, c = 17.4007(3) Å, and β = 90.188(1)° for K(10)[Ge(9)](2)WO(4); and a = 14.3230(7) Å, b = 15.9060(9) Å, c = 17.8634(9) Å, and β = 90.078(4)° for Rb(10)[Ge(9)](2)WO(4). The compounds contain discrete Ge(9)(4-) Wade's nido clusters and WO(4)(2-) (or NbO(4)(3-)) anions, which are packed according to a hierarchical atom-to-cluster replacement of the Al(2)Cu prototype and are separated by K and Rb cations, respectively. The alkali metal atoms occupy the corresponding tetrahedral sites of the Al(2)Cu prototype. The amount of the alkali metal atoms on these diamagnetic compounds corresponds directly to the amount of W substituted by Nb. Thus, the transition metals W and Nb appear with oxidation numbers +6 and +5, respectively, in the vicinity of a [Ge(9)](4-) polyanion. The crystals of the mixed salts were further characterized by Raman spectroscopy. The Raman data are in good agreement with the results from the X-ray structural analyses.
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Affiliation(s)
- Viktor Hlukhyy
- Departement Chemie, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
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Siggelkow L, Hlukhyy V, Fässler TF. Ca
2
NiSn
2
– A Polymorphic Intermetallic Phase: Atomic and Electronic Structure as well as a Topological Description of the Phase Transition by a Sigmatropic‐Type Rearrangement of Ni and Sn Atoms. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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45
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Hlukhyy V, Fässler TF. At the border of intermetallic compounds and transition-metal oxides: crystal intergrowth of the Zintl phase Cs4Ge9 and Cs2WO4 or Cs3VO4 as well as nine-atom cluster relocation in the solid state. Angew Chem Int Ed Engl 2012; 51:742-7. [PMID: 22162347 DOI: 10.1002/anie.201105033] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Indexed: 11/08/2022]
Affiliation(s)
- Viktor Hlukhyy
- Departement Chemie, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
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46
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Siggelkow L, Hlukhyy V, Fässler TF. Ca
2
NiSn
2
– A Polymorphic Intermetallic Phase: Atomic and Electronic Structure as well as a Topological Description of the Phase Transition by a Sigmatropic‐Type Rearrangement of Ni and Sn Atoms. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201101277] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Lisa Siggelkow
- Department Chemie, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
| | - Viktor Hlukhyy
- Department Chemie, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
| | - Thomas F. Fässler
- Department Chemie, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
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Hlukhyy V, Fässler TF. At the Border of Intermetallic Compounds and Transition-Metal Oxides: Crystal Intergrowth of the Zintl Phase Cs4Ge9 and Cs2WO4 or Cs3VO4 as well as Nine-Atom Cluster Relocation in the Solid State. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201105033] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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48
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Siggelkow L, Hlukhyy V, Fässler TF. Synthesis, Structure and Chemical Bonding of Ba2Ni5Ge4 - An Intermetallic Compound with a New Two-dimensional $\rm^2_\infty$[Ni5Ge4] Structural Motif. Z Anorg Allg Chem 2011. [DOI: 10.1002/zaac.201100306] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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49
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Siggelkow L, Hlukhyy V, Wahl B, Fässler TF. Complex Intermetallic Compounds: CaNi
5
Ge
3
, Ca
15
Ni
68
Ge
37
, and Ca
7
Ni
49
Ge
22
– Three Multifaceted Ni‐Ge Framework Structures Combining the Structural Motifs of Ni
3
Ge and CaNi
2
Ge
2. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100347] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Lisa Siggelkow
- Department Chemie, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
| | - Viktor Hlukhyy
- Department Chemie, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
| | - Bernhard Wahl
- Department Chemie, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
| | - Thomas F. Fässler
- Department Chemie, Technische Universität München, Lichtenbergstr. 4, 85747 Garching, Germany
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Oshchapovsky I, Pavlyuk V, Fässler TF, Hlukhyy V. TbNb(6)Sn(6): the first ternary compound from the rare earth-niobium-tin system. Acta Crystallogr Sect E Struct Rep Online 2010; 66:i82. [PMID: 21589205 PMCID: PMC3011672 DOI: 10.1107/s1600536810045964] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2010] [Accepted: 11/08/2010] [Indexed: 05/26/2023]
Abstract
The title compound, terbium hexa-niobium hexastannide, TbNb(6)Sn(6), is the first ternary compound from the rare earth-niobium-tin system. It has the HfFe(6)Ge(6) structure type, which can be analysed as an inter-growth of the Zr(4)Al(3) and CaCu(5) structures. All the atoms lie on special positions; their coordination geometries and site symmetries are: Tb (dodeca-hedron) 6/mmm; Nb (distorted icosa-hedron) 2mm; Sn (Frank-Caspar polyhedron, CN = 14-15) 6mm and m2; Sn (distorted icosa-hedron) m2. The structure contains a graphite-type Sn network, Kagome nets of Nb atoms, and Tb atoms alternating with Sn2 dumbbells in the channels.
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