Über Tetrachlorothallate(III) und -indate(III) mit Scheelit-Struktur / Tetrachlorothallates(III) and -indates(III) of Scheelite Type Structure

Thiele, G.; Grunwald, Bernd; Rink, W.; Breitinger, Dietrich K.

doi:10.1515/znb-1979-1107

Cited by 18 publications

(6 citation statements)

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“…The temperature coefficient of the Tc NQR frequency is positive, as in the perrhenate and metaperiodate (Segel, 1989;Tarasov et al, 1986). Ammonium tetrachlorothallate NHaTICI 4 and ammonium tetrachloroindate NH4InCI 4 also crystallize in the scheelite structure (Thiele, Grunwald, Rink & Breitinger, 1980), but the temperature dependences of their properties do not appear to have been studied.…”

Section: Introductionmentioning

confidence: 99%

Refinement of Ammonium Perrhenate Structure Using a Pseudo-Spin Model for the Ammonium Ion Orientation

Swainson¹,

Brown²

1997

Acta Crystallogr Sect B

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A new Rietveld refinement of previously reported powder neutron diffraction data on ND4ReO 4 taken over a wide range of temperatures [Powell, Brown, Harnden & Reid (1993). Acta Cryst. B49, 463-468] is reported. Rigid-body constraints are applied to the cation geometry and occupation of a second cation orientation at higher temperatures is permitted. The resulting structure at higher temperatures is to be preferred to the previous structure with a single cation orientation and supports the pseudo-spin theory of cooperative disordering without a phase transition.

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Section: Introductionmentioning

confidence: 99%

Refinement of Ammonium Perrhenate Structure Using a Pseudo-Spin Model for the Ammonium Ion Orientation

Swainson¹,

Brown²

1997

Acta Crystallogr Sect B

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“…Thallium(III) undergoes a variety of coordinations with halogens, as reported in literature [1][2][3][4][5][6][7]. Out of these coordinations, a tetrahedral one represented by the ions [T1X4]", X = C1, Br, I.…”

Section: Introductionmentioning

confidence: 91%

Tetraalkylammonium Tetrachlorothallates (III); X-Ray, ³⁵Cl-NQR, and ¹H-NMR Studies

Lenck

Dou

Weiß

1991

Zeitschrift Für Naturforschung A

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T e tra a lk y la m m o n iu m T e tr a c h lo r o th a lla te s ( I I I ) ; X -R a y , 35C 1 -N Q R , a n d XH -N M R S tu d ie s The crystal structure of (CH3)4NT1C14 and (C2H5)4NT1C14 was determined at room temperature by single crystal technique. (CH3)4NT1C14: D^-Cmmm; Z = 2; a = 913.2pm, fe = 894.6 pm, c = 752.5 pm; (C2H5)4NT1C14: Ct-P63mc; Z = 2; a = 827.9 pm, c = 1329.8 pm. (C2H5)4NT1C14 is isomorphous with (C2H5)4NInCl4. The compounds undergoe a phase transition at 239 K and 222 K, respectively. For both compounds no Cl NQR signal was observable in the high temper ature phase I due to the dynamics of the anion. The 3 Cl NQR was studied in the low temperature phase II of both compounds as a function of temperature. (CH3)4NT1C14 shows a two line, (C2H5)4NT1C14 a four line spectrum. The possible phase II structures and the dynamics of the cation, studied by 'H-NMR, are discussed.

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“….4071 (6) .0623 (3) .5883(6) CI 13 .7358 (6) .0462 (3) .3332(7) CI 14 .4863 (6) .0637 (3) .3188(7) CI 15 .6266 (6) .0531 (2) .0821(6) C116…”

Section: Präparative Und Röntgenographische Untersuchungenmentioning

confidence: 99%

Über zwei Modifikationen von "Tl₂Cl₃"-valenzgemischten Thallium(I)-hexahalogenothallaten(III) Tl₃ [TlCl₆] / On Two Modifications of "Tl₂Cl₃"-Mixed Valence Thallium(I)-hexahalogenothallates(III)

Böhme

Rath

Grunwald

et al. 1980

Zeitschrift Für Naturforschung B

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The mixed valence thallium chloride "Tl2Cl3" is polymorphous. Raman spectra and comparable lattice translations suggest similar structures of both modifications. The crystal structure of the rhombic α-Tl2Cl3 crystallizing in yellow, needle-shaped crystals, has been determined from three-dimensional X-ray diffraction data. The unit cell with cell parameters a= 1474.8(5) pm, b - 2508.7(6) pm and c = 1267.6(2) pm contains 16 formula units distributed on 24 independent atom positions. The compound is a mixed valence thallium(I)-hexachlorothallate(III) Tl3[TlCl6] because three of the nine independent Tl atoms are surrounded octahedrally by CI atoms in distances of 250-265 pm, while the other Tl atoms have seven, eight or nine CI neighbours variing between 306 and 383 pm.β-Tl3[TlCl6] forms pale yellow thin platelets and crystallizes monoclinic with cell parameters a = 2549.4(13) pm, 6 = 1469.9(8) pm, c = 1308.5(12) pm and β = 108.58°.

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Über Tetrachlorothallate(III) und -indate(III) mit Scheelit-Struktur / Tetrachlorothallates(III) and -indates(III) of Scheelite Type Structure

Cited by 18 publications

References 0 publications

Refinement of Ammonium Perrhenate Structure Using a Pseudo-Spin Model for the Ammonium Ion Orientation

Refinement of Ammonium Perrhenate Structure Using a Pseudo-Spin Model for the Ammonium Ion Orientation

Tetraalkylammonium Tetrachlorothallates (III); X-Ray, ³⁵Cl-NQR, and ¹H-NMR Studies

Über zwei Modifikationen von "Tl₂Cl₃"-valenzgemischten Thallium(I)-hexahalogenothallaten(III) Tl₃ [TlCl₆] / On Two Modifications of "Tl₂Cl₃"-Mixed Valence Thallium(I)-hexahalogenothallates(III)

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Über Tetrachlorothallate(III) und -indate(III) mit Scheelit-Struktur / Tetrachlorothallates(III) and -indates(III) of Scheelite Type Structure

Cited by 18 publications

References 0 publications

Refinement of Ammonium Perrhenate Structure Using a Pseudo-Spin Model for the Ammonium Ion Orientation

Refinement of Ammonium Perrhenate Structure Using a Pseudo-Spin Model for the Ammonium Ion Orientation

Tetraalkylammonium Tetrachlorothallates (III); X-Ray, 35Cl-NQR, and 1H-NMR Studies

Über zwei Modifikationen von "Tl2Cl3"-valenzgemischten Thallium(I)-hexahalogenothallaten(III) Tl3 [TlCl6] / On Two Modifications of "Tl2Cl3"-Mixed Valence Thallium(I)-hexahalogenothallates(III)

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Tetraalkylammonium Tetrachlorothallates (III); X-Ray, ³⁵Cl-NQR, and ¹H-NMR Studies

Über zwei Modifikationen von "Tl₂Cl₃"-valenzgemischten Thallium(I)-hexahalogenothallaten(III) Tl₃ [TlCl₆] / On Two Modifications of "Tl₂Cl₃"-Mixed Valence Thallium(I)-hexahalogenothallates(III)