Polymorphism of the borophosphate anion in K(Fe,Al)[BP{sub 2}O{sub 8}(OH)] and Rb(Al, Fe)[BP{sub 2}O{sub 8}(OH)] crystal structures

Steele, I M; Dimitrova, O V

doi:10.1134/S106377451005007X

Title: Polymorphism of the borophosphate anion in K(Fe,Al)[BP{sub 2}O{sub 8}(OH)] and Rb(Al, Fe)[BP{sub 2}O{sub 8}(OH)] crystal structures

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Abstract

The crystal structure of two borophosphates, Rb(Al,Fe)[BP{sub 2}O{sub 8}(OH)] (a = 9.381(6), b = 8.398(5), c = 9.579(6) A, {beta} = 102.605(10){sup o}, sp. gr. P2{sub 1}/c) and K(Fe,Al)[BP{sub 2}O{sub 8}(OH)] (a = 5.139(2), b = 8.065(4), c = 8.290(4)A, {alpha} = 86.841(8){sup o}, {beta} = 80.346(8){sup o}, {gamma} = 86.622(8){sup o}, sp. gr. P1-bar), obtained by hydrothermal synthesis in the AlCl{sub 3}: FeCl{sub 3}: K{sub 3}PO{sub 4}(Rb{sub 3}PO{sub 4}): B{sub 2}O{sub 3}: H{sub 2}O system has been established using X-ray diffraction (Bruker Smart diffractometer, T = 100 K). Hydrogen atoms are located and their coordinates and thermal parameters are refined. It is shown that the polymorphism of the [BP{sub 2}O{sub 8}(OH)]{sup 4-} borophosphate anion has a morphotropic nature and is related to the substitutions both in the cationic part of the structure and in the octahedral position of the anionic mixed framework. The synthesis of new isotypic triclinic compounds under hydrothermal conditions is predicted.

Authors:

Steele, I M; Dimitrova, O V ^[1]

University of Chicago (United States)

Publication Date:: Wed Sep 15 00:00:00 EDT 2010

OSTI Identifier:: 22054098

Resource Type:: Journal Article

Journal Name:: Crystallography Reports

Additional Journal Information:: Journal Volume: 55; Journal Issue: 5; Other Information: Copyright (c) 2010 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7745

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ALUMINIUM CHLORIDES; ANIONS; BORON OXIDES; HYDROTHERMAL SYNTHESIS; IRON CHLORIDES; MONOCLINIC LATTICES; POTASSIUM PHOSPHATES; RUBIDIUM PHOSPHATES; TRICLINIC LATTICES; X-RAY DIFFRACTION

Citation Formats


                    Yakubovich, O. V., E-mail: yakubol@geol.msu.ru, Steele, I M, and Dimitrova, O V. Polymorphism of the borophosphate anion in K(Fe,Al)[BP{sub 2}O{sub 8}(OH)] and Rb(Al, Fe)[BP{sub 2}O{sub 8}(OH)] crystal structures.  United States: N. p., 2010. 
        Web.  doi:10.1134/S106377451005007X.

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                    Yakubovich, O. V., E-mail: yakubol@geol.msu.ru, Steele, I M, & Dimitrova, O V. Polymorphism of the borophosphate anion in K(Fe,Al)[BP{sub 2}O{sub 8}(OH)] and Rb(Al, Fe)[BP{sub 2}O{sub 8}(OH)] crystal structures.  United States.  https://doi.org/10.1134/S106377451005007X

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                    Yakubovich, O. V., E-mail: yakubol@geol.msu.ru, Steele, I M, and Dimitrova, O V. 2010.  
        "Polymorphism of the borophosphate anion in K(Fe,Al)[BP{sub 2}O{sub 8}(OH)] and Rb(Al, Fe)[BP{sub 2}O{sub 8}(OH)] crystal structures".  United States.  https://doi.org/10.1134/S106377451005007X.

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@article{osti_22054098,

  title        = {Polymorphism of the borophosphate anion in K(Fe,Al)[BP{sub 2}O{sub 8}(OH)] and Rb(Al, Fe)[BP{sub 2}O{sub 8}(OH)] crystal structures},

  author       = {Yakubovich, O. V., E-mail: yakubol@geol.msu.ru and Steele, I M and Dimitrova, O V},

  abstractNote = {The crystal structure of two borophosphates, Rb(Al,Fe)[BP{sub 2}O{sub 8}(OH)] (a = 9.381(6), b = 8.398(5), c = 9.579(6) A, {beta} = 102.605(10){sup o}, sp. gr. P2{sub 1}/c) and K(Fe,Al)[BP{sub 2}O{sub 8}(OH)] (a = 5.139(2), b = 8.065(4), c = 8.290(4)A, {alpha} = 86.841(8){sup o}, {beta} = 80.346(8){sup o}, {gamma} = 86.622(8){sup o}, sp. gr. P1-bar), obtained by hydrothermal synthesis in the AlCl{sub 3}: FeCl{sub 3}: K{sub 3}PO{sub 4}(Rb{sub 3}PO{sub 4}): B{sub 2}O{sub 3}: H{sub 2}O system has been established using X-ray diffraction (Bruker Smart diffractometer, T = 100 K). Hydrogen atoms are located and their coordinates and thermal parameters are refined. It is shown that the polymorphism of the [BP{sub 2}O{sub 8}(OH)]{sup 4-} borophosphate anion has a morphotropic nature and is related to the substitutions both in the cationic part of the structure and in the octahedral position of the anionic mixed framework. The synthesis of new isotypic triclinic compounds under hydrothermal conditions is predicted.},

  doi          = {10.1134/S106377451005007X},

  url          = {https://www.osti.gov/biblio/22054098},
  journal      = {Crystallography Reports},

  issn         = {1063-7745},

  number       = 5,

  volume       = 55,

  place        = {United States},

  year         = {Wed Sep 15 00:00:00 EDT 2010},

  month        = {Wed Sep 15 00:00:00 EDT 2010}

}

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