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Journal of Chemical Crystallography

, Volume 47, Issue 6, pp 226–232 | Cite as

Structural and IR-Spectroscopic Characterization of Aqua Lithium Acesulfamate, an Outlier of the M(ace), M: Na+, K+, Rb+, Cs+, Isomorphic Series

  • Oscar E. Piro
  • Gustavo A. Echeverría
  • Beatriz S. Parajón-Costa
  • Enrique J. BaranEmail author
Original Paper

Abstract

The crystal structure of aqua lithium 6-methyl-1,2,3,-oxathiazine-4(3H)-one, 2.2-dioxide, for short Li(ace)H2O, was determined by X-ray diffraction methods. It crystallizes in the triclinic P\(\overline {1}\) space group with a = 6.1750(9) Å, b = 7.3969(9) Å, c = 9.016(1) Å, α = 105.88(1)°, β = 94.59(1)°, γ = 97.80(1)°, and Z = 2 molecules per unit cell. The crystal structure of Li(ace)H2O sharply departs from the other heavier alkaline-metal acesulfamates, namely the monoclinic isotypic M-ace (M from Na+ to Cs+) family of salts. Lithium is in a distorted LiO4 tetrahedral coordination with acesulfamate carbonyl, sulfoxide and water oxygen atoms. The FTIR spectrum of the new compound was also recorded and is briefly discussed. Some comparisons with other simple acesulfamate salts are also made.

Graphical Abstract

The synthesis of aqua lithium acesulfamate, Li(C4H4NO4S)H2O, and its structural characterization by single-crystal X-ray diffractometry are reported. The FTIR spectrum of the salt is analyzed by comparison with data of related compounds.

Keywords

Aqua lithium acesulfamate Synthesis Crystal structure FTIR spectrum 

Notes

Acknowledgements

This work was supported by CONICET (PIP 11220130100651CO) and UNLP (Projects 11/X673 and 11/X709) of Argentina. OEP, GAE and BSP-C are Research Fellows of CONICET.

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Copyright information

© Springer Science+Business Media, LLC 2017

Authors and Affiliations

  • Oscar E. Piro
    • 1
  • Gustavo A. Echeverría
    • 1
  • Beatriz S. Parajón-Costa
    • 2
  • Enrique J. Baran
    • 2
    Email author
  1. 1.Departamento de Física and Instituto IFLP (CONICET- CCT-La Plata), Facultad de Ciencias ExactasUniversidad Nacional de La PlataLa PlataArgentina
  2. 2.Centro de Química Inorgánica (CEQUINOR/CONICET- CCT-La Plata, UNLP), Facultad de Ciencias ExactasUniversidad Nacional de La PlataLa PlataArgentina

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