Hydrothermal synthesis, structure and thermal stability of diamine templated layered uranyl-vanadates

doi:10.1016/j.jssc.2006.11.034

Title: Hydrothermal synthesis, structure and thermal stability of diamine templated layered uranyl-vanadates

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Abstract

Six new layered uranyl vanadates (NH{sub 4}){sub 2}[(UO{sub 2}){sub 2}V{sub 2}O{sub 8}] (1), (H{sub 2}EN)[(UO{sub 2}){sub 2}V{sub 2}O{sub 8}] (2), (H{sub 2}DAP)[(UO{sub 2}){sub 2}V{sub 2}O{sub 8}] (3), (H{sub 2}PIP)[(UO{sub 2}){sub 2}(VO{sub 4}){sub 2}].0,8H{sub 2}O (4), (H{sub 2}DMPIP)[(UO{sub 2}){sub 2}V{sub 2}O{sub 8}] (5), (H{sub 2}DABCO)[(UO{sub 2}){sub 2}(VO{sub 4}){sub 2}] (6) were prepared from mild-hydrothermal reactions using 1,2-ethylenediamine (EN); 1,3-diaminopropane (DAP); piperazine (PIP); 1-methylpiperazine (MPIP); 1,4-diazabicyclo[2,2,2]octane (DABCO). The structures of 1, 4, 5 and 6 were solved using single-crystal X-ray diffraction data while the structural models of 2 and 3 were established from powder X-ray diffraction data. In compounds 1, 2, 3 and 5, the uranyl-vanadate layers are built from dimers of edge-shared UO{sub 7} pentagonal bipyramids and dimers of edge-shared VO{sub 5} square pyramids further connected through edge-sharing. In 1 and 3, the layers are identical to that occurring in the carnotite group of uranyl-vanadates. In 2 and 5, the V{sub 2}O{sub 8} dimers differ in orientation leading to a new type of layer. The layers of compound 4 and 6 are built from chains of edge-shared UO{sub 7} pentagonal bipyramids connected by VO{sub 4} tetrahedra and are of uranophane-type anion topology. For the six compounds, the ammonium or organoammonium cationmore »« less

Authors:

Rivenet, Murielle ^[1]; Vigier, Nicolas ^[2]; Roussel, Pascal ^[2]; Abraham, Francis ^[2]

Unite de Catalyse et de Chimie du Solide, Equipe Chimie du Solide, UCCS UMR CNRS 8181, USTL, ENSC-B.P. 90108, 59652 Villeneuve d'Ascq Cedex (France), E-mail: Murielle.rivenet@ensc-lille.fr
Unite de Catalyse et de Chimie du Solide, Equipe Chimie du Solide, UCCS UMR CNRS 8181, USTL, ENSC-B.P. 90108, 59652 Villeneuve d'Ascq Cedex (France)

Publication Date:: Thu Feb 15 00:00:00 EST 2007

OSTI Identifier:: 21015702

Resource Type:: Journal Article

Resource Relation:: Journal Name: Journal of Solid State Chemistry; Journal Volume: 180; Journal Issue: 2; Other Information: DOI: 10.1016/j.jssc.2006.11.034; PII: S0022-4596(06)00629-3; Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA)

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ANIONS; CARNOTITE; CATIONS; CRYSTALLOGRAPHY; DIMERS; HYDROTHERMAL SYNTHESIS; LAYERS; MONOCLINIC LATTICES; MONOCRYSTALS; ORTHORHOMBIC LATTICES; PIPERAZINES; SPACE GROUPS; STRUCTURAL MODELS; URANIUM COMPOUNDS; URANOPHANE; VANADATES; X-RAY DIFFRACTION

Citation Formats


                    Rivenet, Murielle, Vigier, Nicolas, Roussel, Pascal, and Abraham, Francis. Hydrothermal synthesis, structure and thermal stability of diamine templated layered uranyl-vanadates.  United States: N. p., 2007. 
        Web.  doi:10.1016/j.jssc.2006.11.034.

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                    Rivenet, Murielle, Vigier, Nicolas, Roussel, Pascal, & Abraham, Francis. Hydrothermal synthesis, structure and thermal stability of diamine templated layered uranyl-vanadates.  United States.  doi:10.1016/j.jssc.2006.11.034.

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                    Rivenet, Murielle, Vigier, Nicolas, Roussel, Pascal, and Abraham, Francis. Thu .  
        "Hydrothermal synthesis, structure and thermal stability of diamine templated layered uranyl-vanadates".  United States.  
        doi:10.1016/j.jssc.2006.11.034.

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@article{osti_21015702,

  title        = {Hydrothermal synthesis, structure and thermal stability of diamine templated layered uranyl-vanadates},

  author       = {Rivenet, Murielle and Vigier, Nicolas and Roussel, Pascal and Abraham, Francis},

  abstractNote = {Six new layered uranyl vanadates (NH{sub 4}){sub 2}[(UO{sub 2}){sub 2}V{sub 2}O{sub 8}] (1), (H{sub 2}EN)[(UO{sub 2}){sub 2}V{sub 2}O{sub 8}] (2), (H{sub 2}DAP)[(UO{sub 2}){sub 2}V{sub 2}O{sub 8}] (3), (H{sub 2}PIP)[(UO{sub 2}){sub 2}(VO{sub 4}){sub 2}].0,8H{sub 2}O (4), (H{sub 2}DMPIP)[(UO{sub 2}){sub 2}V{sub 2}O{sub 8}] (5), (H{sub 2}DABCO)[(UO{sub 2}){sub 2}(VO{sub 4}){sub 2}] (6) were prepared from mild-hydrothermal reactions using 1,2-ethylenediamine (EN); 1,3-diaminopropane (DAP); piperazine (PIP); 1-methylpiperazine (MPIP); 1,4-diazabicyclo[2,2,2]octane (DABCO). The structures of 1, 4, 5 and 6 were solved using single-crystal X-ray diffraction data while the structural models of 2 and 3 were established from powder X-ray diffraction data. In compounds 1, 2, 3 and 5, the uranyl-vanadate layers are built from dimers of edge-shared UO{sub 7} pentagonal bipyramids and dimers of edge-shared VO{sub 5} square pyramids further connected through edge-sharing. In 1 and 3, the layers are identical to that occurring in the carnotite group of uranyl-vanadates. In 2 and 5, the V{sub 2}O{sub 8} dimers differ in orientation leading to a new type of layer. The layers of compound 4 and 6 are built from chains of edge-shared UO{sub 7} pentagonal bipyramids connected by VO{sub 4} tetrahedra and are of uranophane-type anion topology. For the six compounds, the ammonium or organoammonium cation resides in the space between the inorganic layers. Crystallographic data: 1 monoclinic, space group P2{sub 1}/c with a=6.894(2), b=8.384(3), c=10.473(4) A and {beta}=106.066(5){sup o}, 2 monoclinic, space group P2{sub 1}/a with a=13.9816(6), b=8.6165(3), c=10.4237(3) A and {gamma}=93.125(3){sup o}, 3 orthorhombic, space group Pmcn with a=14.7363(8), b=8.6379(4) and c=10.4385(4) A, 4 monoclinic, space group C2/m with a=15.619(2), b=7.1802(8), c=6.9157(8) A and {beta}=101.500(2){sup o}, 5 monoclinic, space group P2{sub 1}/b with a=9.315(2), b=8.617(2), c=10.5246(2) A and {gamma}=114.776(2){sup o}, 6 monoclinic, space group C2/m with a=17.440(2), b=7.1904(9), c=6.8990(8) A and {beta}=98.196(2){sup o}. - Graphical abstract: The three types of layer in layered uranyl-vanadates using diamine as a structure-directing agent.},

  doi          = {10.1016/j.jssc.2006.11.034},

  journal      = {Journal of Solid State Chemistry},

  number       = 2,

  volume       = 180,

  place        = {United States},

  year         = {Thu Feb 15 00:00:00 EST 2007},

  month        = {Thu Feb 15 00:00:00 EST 2007}

}

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DOI: 10.1016/j.jssc.2006.11.034

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The utilization of the hydrothermal technique in combination with cationic organic templates has been extensively used in the synthesis of zeolites and molecular sieves. Here, the authors report the hydrothermal synthesis and single-crystal structure of (H{sub 3}N(CH{sub 2}){sub 3}NH{sub 3})[V{sub 4}O{sub 10}], a layered mixed-valence vanadium oxide with organic ammonium cations between the layers. 21 refs., 4 figs.
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Two new fluoro-vanadyl-hydrogenarsenate compounds templated by ethylenediamine and piperazine with formula, (C{sub 2}N{sub 2}H{sub 10}){sub 0.5}[(VO)(HAsO{sub 4})F] (1) and (C{sub 4}N{sub 2}H{sub 12}){sub 0.5}[(VO)(HAsO{sub 4})F] (2), respectively, have been synthesized by using mild hydrothermal conditions under autogenous pressure. The crystal structures have been solved from single-crystal X-ray diffraction data. The phases crystallize in the P2{sub 1}/c monoclinic space group with the unit-cell parameters a=7.8634(4) A, b=7.7658(4) A, c=10.4195(6) A, {beta}=101.524(5){sup o} for compound (1) and a=6.301(1) A, b=10.244(1) A, c=10.248(1) A and {beta}=95.225(1){sup o} for compound (2). These phases exhibit a layered inorganic framework. In both cases, the structure ismore »« less
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