An investigation of the tellurium-rich uranium tellurides using X-ray powder diffraction

Boehme, D.R.; Nichols, Mike; Snyder, Robert L.; Matheis, D. P.

doi:10.1016/0925-8388(92)90203-l

Cited by 20 publications

(13 citation statements)

References 14 publications

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“…The results of the structure analysis are given in Tables 1 and 3. This orthorhombic form has since been reported by numerous authors and recendy confirmed by Rietveld analysis (Boehme et al, 1991). The editors of the Powder Diffrac-tion File have deleted the very poor pattern (21-1405) (Slovyanskikh et al, 1968) in preference to the still rather poor, but better, pattern 24-1370 of Klein-Haneveld and Jellinek (1970).…”

Section: Ute 2 Orthorhombicmentioning

confidence: 56%

“…UTe 2 5 was observed in the recent study by Boehme et al (1991) in mixtures containing UTe 2 and UTe 3 . They indexed it as orthorhombic with a unit cell similar to that reported for UTe 5 ; however, a uranium deficient UTe 5 model failed to predict any pattern resembling their observed pattern.…”

Section: Ute 2 Cubicmentioning

confidence: 62%

“…The editors of the Powder Diffrac-tion File have deleted the very poor pattern (21-1405) (Slovyanskikh et al, 1968) in preference to the still rather poor, but better, pattern 24-1370 of Klein-Haneveld and Jellinek (1970). Boehme et al (1991) have produced a high quality pattern in conjunction with the current study. Table 12 lists the calculated pattern along with the current PDF pattern and the new one of Boehme etal.…”

Section: Ute 2 Orthorhombicmentioning

confidence: 77%

“…Suski (1976) confirmed this phase reporting lattice parameters of a = 8.672 A and c = 13.014 A. Recently, Boehme et al (1991) have proven the existence of UTe 3 4 composition and established an improved powder pattern. Noel and Levet (1989 ) have just published the crystal structure of a phase they call /JUTe 3 which has the NdTe 3 structure.…”

Section: Ute 2 Cubicmentioning

confidence: 85%

“…However, more recently the more analogous isomorphous structure of USe3 has been determined by Salem et al (1984). Our computation is based on the Salem et al model shown in Tables 1 and 3 and is compared to the two older experimental patterns and the recent one of Boehme et al (1991) in Table 15. Slovyanskikh et al (1968) reported a crude powder pattern for a material with 77% Te.…”

Section: Ute 2 Cubicmentioning

confidence: 99%

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The Crystal Structures and Powder Diffraction Patterns of the Uranium Tellurides: A Critical Review

1991

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A critical review of all the reported structures and powder diffraction patterns in the uranium telluride system has been undertaken. Our recommendations are:1. Structures that are correct:• Cubic – UTe: no experimental pattern exists. Retain calculated 15–865.• Cubic – U3Te4: retain poor quality 12-610 but adopt the pattern calculated here.• Cubic U2Te3: no experimental pattern exists. Adopt pattern calculated here.• Orthorhombic UTe2: Adopt the new pattern of Boehme et al.• Monoclinic αUTe3: Adopt the new pattern of Boehme et al.• Orthorhombic βUTe3: Adopt the pattern calculated here.• Orthorhombic UTe5: Adopt the new pattern of Boeheme et al.2. Structures in need of refinement:• Orthorhombic U2Te3: Adopt pattern calculated here over 34-807.• Hexagonal U7Te12: Adopt pattern calculated here but retain 24-1368.• Orthorhombic UTe1.78: Adopt pattern calculated here and retain our modified 21-1404 reported for U4Te7.• Orthorhombic UTe2.5: Adopt pattern calculated here.• Orthorhombic UTe3.4: Accept recent pattern of Boehme et al.3. Phases for which no structures or reliable patterns exist:• Orthorhombic U3Te4: no published pattern.• Tetragonal U3Te5: three patterns 21-1407, 34-766 and 34-896 exist but all are of very poor quality.4. Phases which probably do not exist:• Tetragonal UTe1.77• Tetragonal UTe2• Cubic UTe2• U3Te7 (21-1402)• U3Te8 (21-1406)

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Section: Ute 2 Orthorhombicmentioning

confidence: 56%

Section: Ute 2 Cubicmentioning

confidence: 62%

Section: Ute 2 Orthorhombicmentioning

confidence: 77%

Section: Ute 2 Cubicmentioning

confidence: 85%

Section: Ute 2 Cubicmentioning

confidence: 99%

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The Crystal Structures and Powder Diffraction Patterns of the Uranium Tellurides: A Critical Review

1991

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Beiträge zur Kristallchemie der Urantelluride. I. Die Kristallstruktur des α‐Urantritellurids

Stöwe

1996

Zeitschrift anorg allge chemie

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Kristalle der Titelverbindung bis 8 mm Größe waren über chemische Transportreaktionen mit TeBr4 als Transportmittel ausgehend von den Elementen zugänglich. Die atomemissionsspektrometrische Analyse ergab UTe3.0(1). Nach der röntgenographischen Strukturanalyse kristallisiert UTe3 monoklin (Raumgruppe P 21/m, Z = 2) mit a = 609.7(1) pm, b = 422.06(4) pm, c = 1031.2(1) pm und β = 97.87(1)º im ZrSe3‐Strukturtyp. Es liegt eine Schichtstruktur vor mit zweifach überkappten trigonalen Prismen als Baueinheiten.

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Beiträge zur Kristallchemie der Urantelluride. II. Die Kristallstruktur des Diuranpentatellurids U₂Te₅

Stöwe

1996

Zeitschrift anorg allge chemie

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Über chemische Transportreaktionen mit TeBr4 als Transportmittel waren Kristalle der Titelverbindung bis 5 mm Größe aus den Elementen zugänglich. Die atomemissionsspektrometrische Analyse ergab UTe2.52(4). Nach der röntgenographischen Strukturanalyse kristallisiert U2Te5 monoklin (Raumgruppe C2/m, Z = 4) mit a = 3443.3(5) pm, b = 418.65(3) pm, c = 607.97(6) pm und β = 95.35(1)º in einem neuen Strukturtyp. Die Schichtstruktur wird aufgebaut aus zweifach überkappten trigonalen Prismen, die zur Hälfte isoliert und zur Hälfte flächenverknüpft als vierfach überkappte Doppelprismen vorliegen. Eine strukturelle Verwandtschaft von Diuranpentatellurid zu den beiden Nachbarphasen im Phasendiagramm UTe läßt sich durch die Schreibweise als UTe2 · UTe3 ausdrücken.

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An investigation of the tellurium-rich uranium tellurides using X-ray powder diffraction

Cited by 20 publications

References 14 publications

The Crystal Structures and Powder Diffraction Patterns of the Uranium Tellurides: A Critical Review

The Crystal Structures and Powder Diffraction Patterns of the Uranium Tellurides: A Critical Review

Beiträge zur Kristallchemie der Urantelluride. I. Die Kristallstruktur des α‐Urantritellurids

Beiträge zur Kristallchemie der Urantelluride. II. Die Kristallstruktur des Diuranpentatellurids U₂Te₅

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An investigation of the tellurium-rich uranium tellurides using X-ray powder diffraction

Cited by 20 publications

References 14 publications

The Crystal Structures and Powder Diffraction Patterns of the Uranium Tellurides: A Critical Review

The Crystal Structures and Powder Diffraction Patterns of the Uranium Tellurides: A Critical Review

Beiträge zur Kristallchemie der Urantelluride. I. Die Kristallstruktur des α‐Urantritellurids

Beiträge zur Kristallchemie der Urantelluride. II. Die Kristallstruktur des Diuranpentatellurids U2Te5

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Beiträge zur Kristallchemie der Urantelluride. II. Die Kristallstruktur des Diuranpentatellurids U₂Te₅