Rare earth metal-rich indides RE14Rh3−xIn3 (RE=Y, Dy, Ho, Er, Tm, Lu)

Zaremba, R.; Pöttgen, Rainer

doi:10.1016/j.jssc.2007.06.005

Cited by 16 publications

(6 citation statements)

References 12 publications

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“…In the vast majority of ternary RE–T–In phases that contain >50% RE, the indium atoms are isolated and do not participate in homoatomic bonding. The few exceptions are RE 14 T 3 In 3 (Lu 14 Co 2 In 3 or Gd 14 Co 3 In 2.7 -type) − containing In 2 dumbbells, and RE 4 TIn (Gd 4 RhIn-type) and Ce 23 Ru 7 In 4 (Pr 23 Ir 7 Mg 4 -type) containing the aforementioned In 4 tetrahedra. Within these indium substructures, the In – In distances (e.g., 3.087 Å in Gd 14 Co 3 In 2.7 , 3.171 Å in Gd 4 RhIn, 3.093 Å in Ce 23 Ru 7 In 4 ) are significantly shorter than in elemental indium (3.25–3.35 Å in the tetragonal body-centered structure of the ambient allotrope) .…”

Section: Resultsmentioning

confidence: 99%

“…Compounds rich in RE tend to adopt structures that are dominated by polyhedra with irregular geometries around RE atoms (high CN of 12–16), trigonal prismatic or tetragonal antiprismatic geometries around T atoms (CN6 or 8), and cubic or icosahedral geometries around In atoms (CN8 or 12). Examples of RE-rich indides are listed in Table S1 in Supporting Information. − Metal–metal bonding interactions within these compounds can lead to interesting types of clusters, such as T–T dumbbells found in La 8 Co 2 In 3 , Sm 12 Ni 6 In, RE 6 T 2 In, − and Er 12 Fe 2 In 3 . Many of these crystal structures have only recently come to light, because they are very complex, often with very large unit cells, and their successful determination has been realized after considerable perseverance.…”

Section: Introductionmentioning

confidence: 99%

“…Conversely, compounds rich in In tend to adopt structures exhibiting homoatomic In–In bonding patterns, such as 3D networks in YbPdIn 4 , tetramers in REAu 2 In 4 , and In 12 clusters in A 3 Na 26 In 48 (A = K, Rb, Cs) . It is thus surprising that there do exist rare examples in which such indium clusters can form even within RE-rich indides, such as dumbbells in Gd 14 Co 3 In 2.7 − and tetrahedral clusters in Gd 4 RhIn …”

Section: Introductionmentioning

confidence: 99%

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Ternary Rare-Earth-Metal Nickel Indides RE₂₃Ni₇In₄ (RE = Gd, Tb, Dy) with Yb₂₃Cu₇Mg₄-Type Structure

et al. 2021

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The ternary rare-earth-metal nickel indides RE 23 Ni 7 In 4 (RE = Gd, Tb, Dy) were prepared by arc-melting mixtures of the elements followed by annealing at 870 K. They adopt the Yb 23 Cu 7 Mg 4 -type structure (space group P6 3 /mmc, Pearson symbol hP68, Z = 2), as determined by laboratory and synchrotron powder diffraction methods for RE = Gd (a = 9.6435(10) Å, c = 22.118(3) Å) and Tb (a = 9.5695(8) Å, c = 21.983(3) Å), and single-crystal X-ray diffraction methods for RE = Dy (a = 9.533(5) Å, c = 21.890(13) Å). The centrosymmetric Yb 23 Cu 7 Mg 4 -type structure is closely related to the noncentrosymmetric Pr 23 Ir 7 Mg 4 -type structure. Triangular In 3 clusters within RE 23 Ni 7 In 4 represent a rare type of cluster found among metal-rich indides; the reasons for their formation were investigated by density functional theory methods.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ternary Rare-Earth-Metal Nickel Indides RE₂₃Ni₇In₄ (RE = Gd, Tb, Dy) with Yb₂₃Cu₇Mg₄-Type Structure

et al. 2021

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“…The In–In inter‐layer bonds of 312 pm are shorter than in tetragonal body‐centered indium (4 × 325 and 8 × 338 pm) . The In2 dumb‐bells can be compared to those in Ho 14 Co 2.80 In 2.89 (300 pm) and Y 14 Rh 3 In 3 (309 pm) …”

Section: Resultsmentioning

confidence: 99%

EuAuGe Type IndidesRAgIn (R= Ca, Sr, La, Eu)

Stein

Schmolke

Block

et al. 2017

Z. Anorg. Allg. Chem.

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The equiatomic intermetallic phases CaAgIn [a = 482.75 (7), b = 750.0(1), c = 835.5(1) pm], SrAgIn [a = 495.86(5), b = 794.71(9), c = 851.89(9) pm], LaAgIn [a = 489.99(5), b = 767.93(9), c = 837.53(9) pm], and EuAgIn [a = 493.02(7), b = 781.6(1), c = 844.2(1) pm] were synthesized from the elements in sealed niobum containers. They crystallize with the EuAuGe type structure, space group Imm2. The four structures were refined from single-crystal Xray data. The silver and indium atoms build up orthorhombically dis-* Prof. Dr. R. Pöttgen 883 torted, puckered Ag 3 In 3 hexagons, which are stacked in AAЈ sequence, leading to direct Ag-Ag and In-In interlayer bonding (e.g. 303 and 304 pm in CaAgIn). Temperature dependent magnetic susceptibility measurements show a magnetic moment of 7.40(1) μ B per europium atom. EuAgIn orders antiferromagnetically at 5.7(5) K. The divalent nature of europium is also evident from 151 Eu Mössbauer spectra: δ = -10.50(1) mm·s -1 at 78 K. structures), whereas the remaining REAgIn phases show modulated structures that retain hexagonal symmetry.Herein we report on the synthesis, structures, and properties of LaAgIn and EuAgIn and the isotypic alkaline earth indides CaAgIn and SrAgIn.

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“…The segregation of indium entities has repeatedly been observed in rare earth‐rich intermetallic phases. The series of Lu 14 Co 3 In 3 type [7,8] phases shows the formation of In 2 dumb‐bells (e. g. 309 pm In−In in Y 14 Rh 3 In 3 [39] ). The rare motif of In 4 tetrahedra occurs in the Gd 4 RhIn type [2,3] phases (317 pm In−In).…”

Section: Methodsmentioning

confidence: 99%

Lu₂₀Ir₅In₃ and Lu₂₀Pt₅In₃ – superstructures of the Al₅Co₂ type by coloring and distortion

Pöttgen

Gulay

Reimann

et al. 2021

Zeitschrift anorg allge chemie

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Dedicated to Professor Caroline Röhr on the Occasion of her 60 th Birthday The lutetium-rich intermetallic compounds Lu 20 Ir 5 In 3 and Lu 20 Pt 5 In 3 were synthesized from the elements in sealed tantalum ampules in an induction furnace. The phase purity of the samples was checked by powder X-ray diffraction. The structures of Lu 20 Ir 5 In 3 and Lu 20 Pt 5 In 3 were refined from single crystal X-ray diffractometer data: P � 62m, a = 1618.53(4), c = 919.36(4) pm, wR2 = 0.0588, 2665 F 2 values, 88 variables for Lu 20 Ir 5 In 3 and a = 1630.58(4), c = 920.43(4) pm, wR2 = 0.0836, 3024 F 2 values, 89 variables for Lu 19.92 Pt 5 In 3 . The platinum compound showed small amounts of defects on one lutetium site. Lu 20 Ir 5 In 3 and Lu 20 Pt 5 In 3 are non-centrosymmetric super-structures (through coloring and distortions) that derive from the aristotype Al 5 Co 2 via two steps of symmetry reduction (P6 3 / mmc!P6 3 /mcm!P � 62m). The structures are discussed together with the coloring variants Y 10 RuCd 3 and Y 9 CoMg 4 on the basis of a group subgroup scheme. Striking features of the Lu 20 Ir 5 In 3 structure are short IrÀ Lu contacts and the structural segregation of In 3 triangles (300 and 315 pm InÀ In) that are solely coordinated by lutetium atoms. Temperature dependent magnetic susceptibility studies of the Lu 20 Ir 5 In 3 and Lu 20 Pt 5 In 3 samples indicate Pauli paramagnetism.

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Rare earth metal-rich indides RE14Rh3−xIn3 (RE=Y, Dy, Ho, Er, Tm, Lu)

Cited by 16 publications

References 12 publications

Ternary Rare-Earth-Metal Nickel Indides RE₂₃Ni₇In₄ (RE = Gd, Tb, Dy) with Yb₂₃Cu₇Mg₄-Type Structure

Ternary Rare-Earth-Metal Nickel Indides RE₂₃Ni₇In₄ (RE = Gd, Tb, Dy) with Yb₂₃Cu₇Mg₄-Type Structure

EuAuGe Type IndidesRAgIn (R= Ca, Sr, La, Eu)

Lu₂₀Ir₅In₃ and Lu₂₀Pt₅In₃ – superstructures of the Al₅Co₂ type by coloring and distortion

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Rare earth metal-rich indides RE14Rh3−xIn3 (RE=Y, Dy, Ho, Er, Tm, Lu)

Cited by 16 publications

References 12 publications

Ternary Rare-Earth-Metal Nickel Indides RE23Ni7In4 (RE = Gd, Tb, Dy) with Yb23Cu7Mg4-Type Structure

Ternary Rare-Earth-Metal Nickel Indides RE23Ni7In4 (RE = Gd, Tb, Dy) with Yb23Cu7Mg4-Type Structure

EuAuGe Type IndidesRAgIn (R= Ca, Sr, La, Eu)

Lu20Ir5In3 and Lu20Pt5In3 – superstructures of the Al5Co2 type by coloring and distortion

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Ternary Rare-Earth-Metal Nickel Indides RE₂₃Ni₇In₄ (RE = Gd, Tb, Dy) with Yb₂₃Cu₇Mg₄-Type Structure

Ternary Rare-Earth-Metal Nickel Indides RE₂₃Ni₇In₄ (RE = Gd, Tb, Dy) with Yb₂₃Cu₇Mg₄-Type Structure

Lu₂₀Ir₅In₃ and Lu₂₀Pt₅In₃ – superstructures of the Al₅Co₂ type by coloring and distortion