The influence of pressure on the structure of a 2D uranium(VI) carboxyphosphonoate compound

Spencer, Elinor C.; Surbella, Robert G.; Cahill, Christopher L.

doi:10.1016/J.JSSC.2014.05.026

Title: The influence of pressure on the structure of a 2D uranium(VI) carboxyphosphonoate compound

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Abstract

We report the first quantitative analysis of the structural evolution of a uranyl bearing coordination polymer in response to pressure. The material that is central to this study, (UO{sub 2})(O{sub 3}PCH{sub 2}CO{sub 2}H) (1), is constructed from rigid 2D inorganic layers comprising edge sharing UO{sub 7} pentagonal bipyramids cross-linked by [PO{sub 3}(COOH)]{sup 2−} anions. Strong hydrogen bonding interactions exist between the pendent carboxylic acid groups on adjacent layers. Under pressure, 1 exhibits compressional behaviour primarily in the direction perpendicular to the inorganic layers, which is aided by a reduction in the interlayer distance and shifting of the layers with respect to each other. The bulk modulus for the 2D compound 1 is unexpectedly high [18.1(1) GPa] and is within the range reported for 3D CPs assembled from Zn{sup II} cations and inflexible imidazolate anions, and is at the lower end of the range of moduli observed for aluminosilicate zeolites (19–59 GPa). - Graphical Abstract: The compression mechanism and elastic constants for a 2D Uranium(VI) carboxyphosphonoate compound are reported. - Highlights: • The response to pressure of a uranium carboxyphosphonoate compound has been studied. • High-pressure single-crystal XRD data for this 2D uranium compound were collected. • Elastic constants for thismore »« less

Authors:

Spencer, Elinor C. ^[1]; Surbella, Robert G.; Cahill, Christopher L. ^[2]

Dept. of Geosciences, Virginia Tech, Blacksburg, VA 24060 (United States)
Dept. of Chemistry, The George Washington University, 725 21st Street NW, Washington, DC 20052 (United States)

Publication Date:: Wed Oct 15 00:00:00 EDT 2014

OSTI Identifier:: 22443402

Resource Type:: Journal Article

Journal Name:: Journal of Solid State Chemistry

Additional Journal Information:: Journal Volume: 218; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0022-4596

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ANIONS; CARBOXYLIC ACIDS; CATIONS; COMPRESSION; HYBRIDIZATION; HYDROGEN; INTERACTIONS; MONOCRYSTALS; POLYMERS; PRESSURE RANGE MEGA PA 10-100; URANIUM; URANIUM DIOXIDE; X-RAY DIFFRACTION; ZEOLITES

Citation Formats


                    Spencer, Elinor C., Ross, Nancy L., E-mail: nross@vt.edu, Surbella, Robert G., and Cahill, Christopher L. The influence of pressure on the structure of a 2D uranium(VI) carboxyphosphonoate compound.  United States: N. p., 2014. 
        Web.  doi:10.1016/J.JSSC.2014.05.026.

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                    Spencer, Elinor C., Ross, Nancy L., E-mail: nross@vt.edu, Surbella, Robert G., & Cahill, Christopher L. The influence of pressure on the structure of a 2D uranium(VI) carboxyphosphonoate compound.  United States.  https://doi.org/10.1016/J.JSSC.2014.05.026

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                    Spencer, Elinor C., Ross, Nancy L., E-mail: nross@vt.edu, Surbella, Robert G., and Cahill, Christopher L. 2014.  
        "The influence of pressure on the structure of a 2D uranium(VI) carboxyphosphonoate compound".  United States.  https://doi.org/10.1016/J.JSSC.2014.05.026.

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@article{osti_22443402,

  title        = {The influence of pressure on the structure of a 2D uranium(VI) carboxyphosphonoate compound},

  author       = {Spencer, Elinor C. and Ross, Nancy L., E-mail: nross@vt.edu and Surbella, Robert G. and Cahill, Christopher L.},

  abstractNote = {We report the first quantitative analysis of the structural evolution of a uranyl bearing coordination polymer in response to pressure. The material that is central to this study, (UO{sub 2})(O{sub 3}PCH{sub 2}CO{sub 2}H) (1), is constructed from rigid 2D inorganic layers comprising edge sharing UO{sub 7} pentagonal bipyramids cross-linked by [PO{sub 3}(COOH)]{sup 2−} anions. Strong hydrogen bonding interactions exist between the pendent carboxylic acid groups on adjacent layers. Under pressure, 1 exhibits compressional behaviour primarily in the direction perpendicular to the inorganic layers, which is aided by a reduction in the interlayer distance and shifting of the layers with respect to each other. The bulk modulus for the 2D compound 1 is unexpectedly high [18.1(1) GPa] and is within the range reported for 3D CPs assembled from Zn{sup II} cations and inflexible imidazolate anions, and is at the lower end of the range of moduli observed for aluminosilicate zeolites (19–59 GPa). - Graphical Abstract: The compression mechanism and elastic constants for a 2D Uranium(VI) carboxyphosphonoate compound are reported. - Highlights: • The response to pressure of a uranium carboxyphosphonoate compound has been studied. • High-pressure single-crystal XRD data for this 2D uranium compound were collected. • Elastic constants for this material have been determined. • The compression mechanism for the compound has been elucidated.},

  doi          = {10.1016/J.JSSC.2014.05.026},

  url          = {https://www.osti.gov/biblio/22443402},
  journal      = {Journal of Solid State Chemistry},

  issn         = {0022-4596},

  number       = ,

  volume       = 218,

  place        = {United States},

  year         = {Wed Oct 15 00:00:00 EDT 2014},

  month        = {Wed Oct 15 00:00:00 EDT 2014}

}

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