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uranyl molybdate

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CRYSTAL CHEMISTRY OF URANYL MOLYBDATES. IX. A NOVEL URANYL MOLYBDATE SHEET IN THE STRUCTURE OF Tl 2 [(UO 2 ) 2 O(MoO 5 )]

Sergey V. Krivovichev, Peter C. Burns
Published: 01 October 2003
The Canadian Mineralogist (2003) 41 (5): 1225–1231.
DOI: https://doi.org/10.2113/gscanmin.41.5.1225
...Sergey V. Krivovichev; Peter C. Burns Abstract Crystals of a new thallium uranyl molybdate, Tl 2 [(UO 2 ) 2 O(MoO 5 )], have been synthesized by high-temperature solid-state reactions. The structure [monoclinic, P 2 1 / n , a 8.2527(3), b 28.5081(12), c 9.1555(4) Å, β 104.122(1)°, V 2088.91(15) Å...
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CRYSTAL CHEMISTRY OF URANYL MOLYBDATES. VI. NEW URANYL MOLYBDATE UNITS IN THE STRUCTURES OF Cs 4 [(UO 2 ) 3 O(MoO 4 ) 2 (MoO 5 )] AND Cs 6 [(UO 2 )(MoO 4 ) 4 ]

Sergey V. Krivovichev, Peter C. Burns
Published: 01 February 2002
The Canadian Mineralogist (2002) 40 (1): 201–209.
DOI: https://doi.org/10.2113/gscanmin.40.1.201
...Sergey V. Krivovichev; Peter C. Burns Abstract Two Cs uranyl molybdates, Cs 4 [(UO 2 ) 3 O(MoO 4 ) 2 (MoO 5 )] and Cs 6 [(UO 2 )(MoO 4 ) 4 ], have been synthesized by high-temperature solid-state reactions. The structures of these compounds were solved by direct methods and refined on the basis...
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Twinning and incommensurate modulation in baumoite, Ba 0.5 [(UO 2 ) 3 O 8 Mo 2 (OH) 3 ](H 2 O) ~3 , the first natural Ba uranyl molybdate

Peter Elliott, Jakub Plášil, Václav Petříček, Jiří Čejka, Luca Bindi
Published: 12 April 2019
Mineralogical Magazine (2019) 83 (4): 507–514.
DOI: https://doi.org/10.1180/mgm.2019.20
... Associate Editor: Ian T. Graham 06 12 2018 06 03 2019 Copyright © Mineralogical Society of Great Britain and Ireland 2019 2019 Mineralogical Society of Great Britain and Ireland baumoite new mineral species barium uranyl molybdate incommensurately modulated structure twinning...
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THE CRYSTAL CHEMISTRY OF URANYL MOLYBDATES. II. THE CRYSTAL STRUCTURE OF IRIGINITE

Sergey V. Krivovichev, Peter C. Burns
Published: 01 August 2000
The Canadian Mineralogist (2000) 38 (4): 847–851.
DOI: https://doi.org/10.2113/gscanmin.38.4.847
... of the structure. 21 05 2000 10 01 2000 © 2000 Mineralogical Association of Canada 2000 The sheets of uranyl and molybdate polyhedra are linked by H bonds involving an interlayer H 2 O group ( Fig. 2 ). The H 2 O(8) group donates two H bonds that are probably accepted by O(7) anions...
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CRYSTAL CHEMISTRY OF URANYL MOLYBDATES. I. THE STRUCTURE AND FORMULA OF UMOHOITE

Sergey V. Krivovichev, Peter C. Burns
Published: 01 June 2000
The Canadian Mineralogist (2000) 38 (3): 717–726.
DOI: https://doi.org/10.2113/gscanmin.38.3.717
... the Mo 6+ cations. The bond-valence calculations ( Table 4 ) indicate that each of these bonds has ~0.2 vu associated with it. Projection of the structure along [100] reveals sheets of edge-sharing uranyl and molybdate polyhedra, with H 2 O groups occurring in the interlayer ( Fig. 1 ). F...
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Structural sheets in <span class="search-highlight">uranyl</span> <span class="search-highlight">molybdates</span>. ( a ) <span class="search-highlight">Uranyl</span> <span class="search-highlight">molybdate</span> sheet in bau...

Structural sheets in uranyl molybdates. ( a ) Uranyl molybdate sheet in bau...

Published: 12 April 2019
Fig. 8. Structural sheets in uranyl molybdates. ( a ) Uranyl molybdate sheet in baumoite at t  = 0. UO 7 bipyramids (yellow) share edges and vertices to form irregular infinite ribbons interconnected through dimers of Mo polyhedra (red), running through as stairs-like (represented by a dashed
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<span class="search-highlight">URANYL</span> <span class="search-highlight">MOLYBDATE</span> MINERALS APPROVED BY THE IMA

URANYL MOLYBDATE MINERALS APPROVED BY THE IMA

Published: 18 April 2022
TABLE 1. URANYL MOLYBDATE MINERALS APPROVED BY THE IMA
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Approximant structure of baumoite at t  = 0. <span class="search-highlight">Uranyl</span>-<span class="search-highlight">molybdate</span> sheets, comp...

Approximant structure of baumoite at t  = 0. Uranyl-molybdate sheets, comp...

Published: 12 April 2019
Fig. 7. Approximant structure of baumoite at t  = 0. Uranyl-molybdate sheets, composed of uranyl pentagonal bipyramids (yellow) and Mo 6+ -octahedra (red), are alternating interlayer, where Ba atoms (green) and H 2 O molecules (Ow1–4) are localised.
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The single <span class="search-highlight">uranyl</span> <span class="search-highlight">molybdate</span> sheet in the structure of Ag 10 [(UO 2 ) 8 O 8 ...

The single uranyl molybdate sheet in the structure of Ag 10 [(UO 2 ) 8 O 8 ...

Published: 01 December 2003
F ig . 3. The single uranyl molybdate sheet in the structure of Ag 10 [(UO 2 ) 8 O 8 (Mo 5 O 20 )] (a) and its anion topology (b), presented according to the method by Burns et al . (1996) . Legend: U polyhedra are yellow, Mo polyhedra are green.
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Diagram demonstrating linkage of two adjacent <span class="search-highlight">uranyl</span> <span class="search-highlight">molybdate</span> sheets into ...

Diagram demonstrating linkage of two adjacent uranyl molybdate sheets into ...

Published: 01 December 2003
F ig . 4. Diagram demonstrating linkage of two adjacent uranyl molybdate sheets into double sheet via Mo(3)O 4 tetrahedron (a), and Mo 5 O 20 cluster shown in polyhedral (b) and ball-and-stick representations. Legend: U polyhedra are yellow, Mo polyhedra are green, Mo atoms are green spheres
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Anion topology of <span class="search-highlight">uranyl</span> <span class="search-highlight">molybdate</span> sheet in the structure of Ag 10 [(UO 2 )...

Anion topology of uranyl molybdate sheet in the structure of Ag 10 [(UO 2 )...

Published: 01 December 2003
F ig . 5. Anion topology of uranyl molybdate sheet in the structure of Ag 10 [(UO 2 ) 8 O 8 (Mo 5 O 20 )] (a) and its construction from chains of polygons (b).
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The <span class="search-highlight">uranyl</span> <span class="search-highlight">molybdate</span> sheet in the structure of Tl 2 [(UO 2 ) 2 O(MoO 5 )] (...

The uranyl molybdate sheet in the structure of Tl 2 [(UO 2 ) 2 O(MoO 5 )] (...

Published: 01 October 2003
F ig . 2. The uranyl molybdate sheet in the structure of Tl 2 [(UO 2 ) 2 O(MoO 5 )] (a) and its anion topology (b). Legend: U polyhedra: yellow, Mo polyhedra: green, t 101 = translation along [101].
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<span class="search-highlight">Uranyl</span>-<span class="search-highlight">molybdate</span> sheet in iriginite (a) and iriginite anion-topology (b).

Uranyl-molybdate sheet in iriginite (a) and iriginite anion-topology (b).

Published: 01 June 2000
F ig . 4. Uranyl-molybdate sheet in iriginite (a) and iriginite anion-topology (b).
Journal Article

Crystal Structure of Tengchongite with a Revised Chemical Formula Ca(UO 2 ) 6 (MoO 4 OH) 2 O 2 (OH) 4 ·9H 2 O

Ting Li, Guang Fan, Xiangkun Ge, Tao Wang, Apeng Yu, Liumin Deng
Published: 18 April 2022
The Canadian Mineralogist (2022) 60 (3): 533–542.
DOI: https://doi.org/10.3749/canmin.2000127
...TABLE 1. URANYL MOLYBDATE MINERALS APPROVED BY THE IMA ...
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CRYSTAL CHEMISTRY OF URANYL MOLYBDATES. III. NEW STRUCTURAL THEMES IN Na 6 [(UO 2 ) 2 O(MoO 4 ) 4 ], Na 6 [(UO 2 )(MoO 4 ) 4 ] AND K 6 [(UO 2 ) 2 O(MoO 4 ) 4 ]

Sergey V. Krivovichev, Peter C. Burns
Published: 01 February 2001
The Canadian Mineralogist (2001) 39 (1): 197–206.
DOI: https://doi.org/10.2113/gscanmin.39.1.197
...Sergey V. Krivovichev; Peter C. Burns Abstract Two Na uranyl molybdates, Na 6 [(UO 2 ) 2 O(MoO 4 ) 4 ] and Na 6 [(UO 2 )(MoO 4 ) 4 ], and one K uranyl molybdate, K 6 [(UO 2 ) 2 O(MoO 4 ) 4 ], have been synthesized by high-temperature solid-state reactions of mixtures of Na 2 CO 3 , K 2 CO 3 , UO 3...
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CRYSTAL CHEMISTRY OF URANYL MOLYBDATES. X. THE CRYSTAL STRUCTURE OF Ag 10 [(UO 2 ) 8 O 8 (Mo 5 O 20 )]

Sergey V. Krivovichev, Peter C. Burns
Published: 01 December 2003
The Canadian Mineralogist (2003) 41 (6): 1455–1462.
DOI: https://doi.org/10.2113/gscanmin.41.6.1455
...F ig . 3. The single uranyl molybdate sheet in the structure of Ag 10 [(UO 2 ) 8 O 8 (Mo 5 O 20 )] (a) and its anion topology (b), presented according to the method by Burns et al . (1996) . Legend: U polyhedra are yellow, Mo polyhedra are green. ...
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CRYSTAL CHEMISTRY OF URANYL MOLYBDATES. VIII. CRYSTAL STRUCTURES OF Na 3 Tl 3 [(UO 2 )(MoO 4 ) 4 ], Na 13− x Tl 3+ x [(UO 2 )(MoO 4 ) 3 ] 4 (H 2 O) 6+ x ( x = 0.1), Na 3 Tl 5 [(UO 2 )(MoO 4 ) 3 ] 2 (H 2 O) 3 AND Na 2 [(UO 2 )(MoO 4 ) 2 ](H 2 O) 4

Sergey V. Krivovichev, Peter C. BURNS
Published: 01 June 2003
The Canadian Mineralogist (2003) 41 (3): 707–719.
DOI: https://doi.org/10.2113/gscanmin.41.3.707
... les feuillets [(UO 2 )(MoO 4 ) 2 ] 2− adjacents en une trame. Les quatre structures sont comparées à celles de molybdates uranylés apparentés. (Traduit par la Rédaction) Abstract Crystals of four sodium uranyl molybdates, Na 3 Tl 3 [(UO 2 )(MoO 4 ) 4 ] ( 1 ), Na 13− x Tl 3+ x [(UO 2 )(MoO 4 ) 3...
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CRYSTAL CHEMISTRY OF URANYL MOLYBDATES. IV. THE STRUCTURES OF M 2 [(UO 2 ) 6 (MoO 4 ) 7 (H 2 O) 2 ] ( M = Cs, NH 4 )

Sergey V. Krivovichev, Peter C. Burns
Published: 01 February 2001
The Canadian Mineralogist (2001) 39 (1): 207–214.
DOI: https://doi.org/10.2113/gscanmin.39.1.207
...Sergey V. Krivovichev; Peter C. Burns Abstract Two new uranyl molybdate hydrates, M 2 [(UO 2 ) 6 (MoO 4 ) 7 (H 2 O) 2 ] ( M = Cs, NH 4 ), have been synthesized using hydrothermal methods. The crystals occur as transparent yellow needles and yellow elongate plates for M = Cs and NH 4 , respectively...
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CRYSTAL CHEMISTRY OF URANYL MOLYBDATES. VII. AN IRIGINITE-TYPE SHEET OF POLYHEDRA IN THE STRUCTURE OF [(UO 2 )Mo 2 O 7 (H 2 O) 2 ]

Sergey V. Krivovichev, Peter C. Burns
Published: 01 December 2002
The Canadian Mineralogist (2002) 40 (6): 1571–1577.
DOI: https://doi.org/10.2113/gscanmin.40.6.1571
...Sergey V. Krivovichev; Peter C. Burns Abstract A new uranyl molybdate hydrate, [(UO 2 )Mo 2 O 7 (H 2 O) 2 ], has been synthesized by hydrothermal methods. The crystals are dark yellow elongate plates that are invariably twinned on (100). The structure was solved by direct methods and refined...
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CRYSTAL CHEMISTRY OF URANYL MOLYBDATES. V. TOPOLOGICALLY DISTINCT URANYL DIMOLYBDATE SHEETS IN THE STRUCTURES OF Na 2 [(UO 2 )(MoO 4 ) 2 ] AND K 2 [(UO 2 )(MoO 4 ) 2 ](H 2 O)

Sergey V. Krivovichev, Robert J. Finch, Peter C. Burns
Published: 01 February 2002
The Canadian Mineralogist (2002) 40 (1): 193–200.
DOI: https://doi.org/10.2113/gscanmin.40.1.193
... group P 2 1 / c , a 7.893(2), b 10.907(2), c 13.558(3) Å, β 98.70(3)°, V 1153.8(4) Å 3 , Z = 4. Both structures are based upon sheets of uranyl pentagonal bipyramids and molybdate tetrahedra. The structural sheets in the two compounds are isochemical but topologically distinct. Abstract Nous avons...
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