Birgit Heying

University of Münster

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Ute Ch. Rodewald

University of Münster

Rainer Pöttgen

University of Münster

Rainer Poettgen

Carl von Ossietzky Universität Oldenburg

Rolf‐Dieter Hoffmann

University of Münster

Jutta Kösters

University of Münster

Oliver Niehaus

University of Münster

Günter Heymann

Universität Innsbruck

Etienne Gaudin

Institut de Chimie de la Matière Condensée de Bordeaux

Vasyl‘ I. Zaremba

Lviv University

Hubert Huppertz

Universität Innsbruck

Cooperative Institutions

University of Münster

Centre National de la Recherche Scientifique

Institut de Chimie de la Matière Condensée de Bordeaux

Université de Bordeaux

Ludwig-Maximilians-Universität München

Technical University of Munich

Lviv University

Institut Polytechnique de Bordeaux

University of Augsburg

Max Planck Society

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Sr₄Pt₁₀In₂₁ – the first representative of the Ho₄Ni₁₀In₂₁ type with a divalent cation

Zeitschrift für Naturforschung (2019)

Birgit Heying Jutta Kösters Rainer Pöttgen

Rod-shaped single crystals of Sr₄Pt₁₀In₂₁ were prepared from the elements in glassy-carbon crucibles in a high-frequency furnace. The structure of Sr₄Pt₁₀In₂₁ was refined from single-crystal X-ray diffractometer data: C2/m, Ho₄Ni₁₀Ga₂₁ type, a = 2322.62(7), b = 450.27(2), c = 1958.09(7) pm, β = 133.191(3)°, wR = 0.0464, 3200 F² values and 107 variables. The three-dimensional [Pt₁₀In₂₁]ᵟ⁻ polyanionic network is stabilized through substantial Pt–In (269–313 pm Pt–In) and In–In (294–362 pm In–In) bonding. All platinum atoms have slightly distorted tri-capped trigonal prismatic coordination and the two crystallographically independent strontium atoms are located in penta-capped pentagonal prisms.

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Trigonal crystal system

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CSD 1788033: Experimental Crystal Structure Determination

The Cambridge Structural Database (2015)

Sebastian Schwung David Enseling Volker Wesemann Daniel Rytz Birgit Heying

An entry from the Inorganic Crystal Structure Database, the world’s repository for inorganic crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the joint CCDC and FIZ Karlsruhe Access Structures service and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

Crystal (programming language)

10.25505/fiz.icsd.cc1y0lh1

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Synthesis and Structures of Yb4Rh7Ge6 and Yb4Ir7Ge6

Zeitschrift für anorganische und allgemeine Chemie (2004)

Birgit Heying Kenichi Katoh Yuzuru Niide Akira Ochiai Rainer Pöttgen

Abstract Larger single crystals of Yb 4 Rh 7 Ge 6 and Yb 4 Ir 7 Ge 6 were prepared from arc‐melted precursor alloys Rh 7 Ge 6 and Ir 7 Ge 6 and elemental ytterbium via the Bridgman method using tungsten crucibles. Yb 4 Rh 7 Ge 6 and Yb 4 Ir 7 Ge 6 were investigated by X‐ray diffraction on powders and single crystals. Both germanides crystallize with the cubic U 4 Re 7 Si 6 type structure, space group Im 3 m . Structure refinement from X‐ray single crystal diffractometer data yielded a = 825.3(1) pm, wR2 = 0.0292, 106 F 2 values, 10 variable parameters for Yb 4 Rh 7 Ge 6 and a = 826.6(2) pm, wR2 = 0.0486, 150 F 2 values, 10 variable parameters for Yb 4 Ir 7 Ge 6 . The structures contain two crystallographically independent transition metal ( T ) atoms with octahedral ( T 1) and tetrahedral ( T 2) germanium coordination. The octahedra and tetrahedra are condensed via common corners and edges forming complex three‐dimensional [ T 7 Ge 6 ] networks in which the trivalent ytterbium atoms fill voids of coordination number 14.

Ytterbium

Diffractometer

Tetrahedron

10.1002/zaac.200400134

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Citations (9)

The Stannides RE₂Ni₂Sn (RE = Pr, Ho, Er, Tm) – Structural Transition from the W₂B₂Co to the Mo₂B₂Fe Type as a Function of the Rare Earth Size

Zeitschrift für Naturforschung B (2013)

Birgit Heying Ute Ch. Rodewald Bernard Chevalier

Abstract The stannides RE 2 Ni 2 Sn (RE=Pr, Ho, Er, Tm) were synthesized by arc-melting of the elements and characterized by powder X-ray diffraction. Pr 2 Ni 2 Sn crystallizes with the orthorhombic W 2 B 2 Co-type structure, Immm, a=443.8(1), b=572.1(1), c=855.1(2) pm, wR2=0.0693, 293 F 2 values, 13 variables. A structural transition to the tetragonal Mo 2 B 2 Fe type occurs for the heavier rare earth elements. The structures of Ho 2 Ni 2 Sn (a=729.26(9), c=366.66(7) pm, wR2=0.0504, 250 F 2 values, 12 variables), Er 2 Ni 2 Sn (a=727.2(2), c=364.3(1) pm, wR2=0.0397, 262 F 2 values, 12 variables), and Tm 2 Ni 2 Sn (a=725.2(1), c=362.8(1) pm, wR2=0.0545, 258 F 2 values, 12 variables) were refined from single-crystal diffractometer data. The switch in structure type is driven by the size of the rare earth element. The [Ni 2 Sn] substructures are composed of Ni 2 Sn 2 squares and Ni 4 Sn 2 hexagons in Pr 2 Ni 2 Sn, and of Ni 3 Sn 2 pentagons in Er 2 Ni 2 Sn. The Ni 4 Sn 2 hexagons and Ni 3 Sn 2 pentagons exhibit Ni 2 pairs with Ni-Ni distances of 247 pm in Pr 2 Ni 2 Sn, and of 250 pm in Er 2 Ni 2 Sn.

Orthorhombic crystal system

Tetragonal crystal system

Diffractometer

10.5560/znb.2013-2296

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Citations (20)

New Hydrides REScSiH and REScGeH (RE = La, Ce): Structure, Magnetism, and Chemical Bonding

Chemistry of Materials (2010)

Bernard Chevalier Wilfried Hermes Birgit Heying Ute Ch. Rodewald A. Hammerschmidt

The La2Sb type silicides and germanides REScSi and REScGe (RE = La, Ce) were synthesized from the elements by arc-melting and subsequent annealing at 1170 K. The structures of LaScSi and LaScGe were refined on the basis of single-crystal X-ray diffraction data. The structures consist of a stacking of two-dimensional [ScSi] networks with ScSi4/4 rectangles, which are separated by rare earth atoms, which leave RE4/4 tetrahedral voids. The latter can be completely filled by hydrogenation leading to the quaternary hydrides REScSiH and REScGeH (RE = La, Ce). Hydrogenation is accompanied by an anisotropic unit cell expansion, i.e., a decrease in the a lattice parameter and a strong increase in c. The H-insertion into the compounds based on cerium induces for both a quasi-2D structure, a strong decrease of their antiferromagnetic ordering; for instance TN decreases from 26 to 3.0 K in the sequence CeScSi → CeScSiH and the occurrence of the influence of the Kondo effect evidenced by electrical resistivity and specific heat measurements. The electronic structure calculation applied to CeScSi and its hydride reveals strong Ce−H bonding influencing the magnetic properties of CeScSiH.

Magnetism

Germanide

10.1021/cm101290f

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Citations (24)

The germanides ScTGe (T = Co, Ni, Cu, Ru, Rh, Pd, Ag, Ir, Pt, Au) – Structure and 45Sc solid state NMR spectroscopy

Solid State Sciences (2014)

Birgit Heying Sandra Haverkamp Ute Ch. Rodewald Hellmut Eckert Sebastian C. Peter

Germanide

Knight shift

Orthorhombic crystal system

Valence electron

Electric field gradient

Zintl phase

Scandium

10.1016/j.solidstatesciences.2014.11.001

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Citations (19)

The Solid Solution CeAuIn_1‐xMg_x — Structure, Magnetic Properties and Specific Heat Data.

ChemInform (2006)

Sudhindra Rayaprol Birgit Heying Rainer Poettgen

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.

Specific heat

10.1002/chin.200635005

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Orthorhombic sulfur from Cap Garonne, Mine du Pradet

Zeitschrift für Naturforschung B (2018)

Jutta Kösters Valérie Galea-Clolus Pierre Clolus Birgit Heying Rainer Pöttgen

Abstract Natural orthorhombic sulfur ( α -S 8 ), grown on galena crystals from Cap Garonne, Mine du Pradet, France, were studied by single crystal X-ray diffraction at 150 K: Fddd , a =1036.75(5), b =1273.54(7), c =2437.85(13) pm, wR =0.0380, 1433 F 2 values (all data) and 37 variables. Refinements of the occupancy parameters along with EDX data indicate pure sulfur.

Orthorhombic crystal system

10.1515/znb-2018-0202

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Citations (2)

Ternary platinides Sr4In13Pt9 and Eu5In9Pt7

Monatshefte für Chemie - Chemical Monthly (2019)

Birgit Heying Jutta Kösters Lukas Heletta Steffen Klenner Rainer Pöttgen

Europium

10.1007/s00706-019-02412-8

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Citations (5)

Crystal and electronic structure of LaPdSn and RE3Pd4Sn6 (RE = La, Ce)