Preparation, Magnetic Properties, and Pressure-Induced Transitions of Some MIIMIVF6 (MII=Ni, Pd, Cu; MIV=Pd, Pt, Sn) Complex Fluorides

Tressaud, A.; Bartlett, Neil

doi:10.1006/jssc.2001.9331

Cited by 9 publications

(6 citation statements)

References 22 publications

(12 reference statements)

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“…[24] In the former case, Pd II exhibits a regular octahedral coordination, as in rutiletype PdF 2 and PdM IV F 6 phases (M IV ϭ Pd, Pt) derived from ReO 3 structures by cationic ordering. [25] Due to the ordering of Pd electronic orbitals, ferromagnetism occurs in these Pd 2 F 6 -derived materials. An intermediate case is that of CsPd 2 F 5 , in which half of the Pd II centers are in a highspin configuration and the other half in a lowϪspin state.…”

Section: Magnetic Properties Of Pd(asf 6 )mentioning

confidence: 99%

Palladium Chemistry in Anhydrous HF/AsF₅ Superacid Medium

et al. 2004

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Pd metal dissolves in anhydrous HF (aHF) acidified with AsF5 in the presence of F2 at ≈︁298 K to give a blue‐green solution from which green Pd(AsF6)2 can be isolated. The latter was also prepared by the interaction of PdF2 and AsF5 in aHF or by the reaction between PdO and F2 in aHF acidified with AsF5. Powdered Pd(AsF6)2 slowly loses AsF5 in a dynamic vacuum. It can therefore be isolated from solution at T < 253 K. Single‐crystals of Pd(AsF6)2 were prepared by solvothermal synthesis from a Pd/AsF5/F2/aHF mixture at 393 K. Pd(AsF6)2 is triclinic with a = 500.9(5), b = 538.3(5), c = 864.9(9) pm, α = 74.46(3), β = 89.97(4), γ = 62.47(2)°, V = 0.1972(3) nm3, and Z = 1, space group P$\bar 1$ (No. 2). The six‐coordinate Pd atoms (coordinated with fluorine) are well separated by isolated AsF6 units. In the 2−175 K temperature range Pd(AsF6)2 follows the Curie−Weiss law with μeff = 3.53 B.M., Tn = 8 K and θp= −13 K. Because of cation‐anion interactions, the AsF6− anions deviate from ideal Oh symmetry. The reduced symmetry can be seen in vibrational spectra, where splitting of the anion vibrational modes can be observed. The oxidation of Pd metal or PdO with F2 in neutral aHF yielded Pd2F6. No reaction was observed between Pd, PdO or Pd2F6 and AsF5 in aHF. All attempts to prepare PdFAsF6 were unsuccessful. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)

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Section: Magnetic Properties Of Pd(asf 6 )mentioning

confidence: 99%

Palladium Chemistry in Anhydrous HF/AsF₅ Superacid Medium

et al. 2004

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“…We also present the corrected space group and crystal structure for SrPbF 6 Sr, Ba, Mn, Fe, Co, Ni, Pd, Cu, Ag, Zn, Cd, Hg) were reported. [28][29][30][31][32][33][34] Many of these crystallize in the LiSbF 6 structure type.…”

Section: Introductionmentioning

confidence: 99%

“…The compounds M I 2 SnF 6 ( M I = Li–Cs) are structurally characterized as well , . For the stannates(IV), the crystal structures of the compounds M II SnF 6 ( M II = Mg, Ca, Sr, Ba, Mn, Fe, Co, Ni, Pd, Cu, Ag, Zn, Cd, Hg) were reported . Many of these crystallize in the LiSbF 6 structure type.…”

Section: Introductionmentioning

confidence: 99%

Li₂PbF₆ and SrPbF₆ Revisited

Bandemehr

Deubner

Sachs

et al. 2018

Zeitschrift anorg allge chemie

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Herein we present the crystal structure of lithium hexafluoridoplumbate(IV) determined from powder X‐ray diffraction data. The cell parameters are a = 5.01067(3), c = 4.66340(5) Å, V = 101.3969(13) Å3 at T = 293 K. Li2PbF6 is isotypic to Li2ZrF6, space group P31m (no. 162). The measured Raman spectrum is compared with the quantum chemically calculated spectrum. Furthermore, we determined the decomposition temperature of Li2PbF6. We also present the corrected space group and crystal structure for SrPbF6 which was previously reported as P42/mmc (no. 131) and could now be corrected to space group P42/mcm [no. 132, a = 5.21719(3), c = 8.92771(11) Å, V = 243.004(4) Å3, T = 293 K].

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“…The pressure dependence of the resistivity (r) of Pd 2 F 6 at 25 8C, measured in situ in a solid-state high-pressure ''belt'' instrument, shows that the values drop by six orders of magnitude up to 80 kbar [13] (Fig. 1).…”

Section: Ferromagnetism and Piezoconductivity Inmentioning

confidence: 96%

“…The compound crystallized in the LiSbF 6 -type (space group R3). X-ray powder diffractograms have shown NiPdF 6 , NiPtF 6 , PdPtF 6 and PdSnF 6 to be isostructural with Pd 2 F 6 [13]. Table 1 summarizes the magnetic data of Pd 2 F 6 -type ferromagnets.…”

Section: Transmission Electron Microscopymentioning

confidence: 96%

Preparation, Magnetic Properties, and Pressure-Induced Transitions of Some MIIMIVF6 (MII=Ni, Pd, Cu; MIV=Pd, Pt, Sn) Complex Fluorides

Cited by 9 publications

References 22 publications

Palladium Chemistry in Anhydrous HF/AsF₅ Superacid Medium

Palladium Chemistry in Anhydrous HF/AsF₅ Superacid Medium

Li₂PbF₆ and SrPbF₆ Revisited

Structural architecture and physical properties of some inorganic fluoride series: a review

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Preparation, Magnetic Properties, and Pressure-Induced Transitions of Some MIIMIVF6 (MII=Ni, Pd, Cu; MIV=Pd, Pt, Sn) Complex Fluorides

Cited by 9 publications

References 22 publications

Palladium Chemistry in Anhydrous HF/AsF5 Superacid Medium

Palladium Chemistry in Anhydrous HF/AsF5 Superacid Medium

Li2PbF6 and SrPbF6 Revisited

Structural architecture and physical properties of some inorganic fluoride series: a review

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Product

Resources

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Palladium Chemistry in Anhydrous HF/AsF₅ Superacid Medium

Palladium Chemistry in Anhydrous HF/AsF₅ Superacid Medium

Li₂PbF₆ and SrPbF₆ Revisited