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Related Experiment Videos

Sodium hydrogen bis(phenoxyacetate).

J Evans1, A Kapitan, G Rosair

  • 1Centre for Molecular and Interface Engineering, Department of Mechanical and Chemical Engineering, Heriot Watt University, Riccarton, Edinburgh EH14 4AS, Scotland.

Acta Crystallographica. Section C, Crystal Structure Communications
|March 16, 2001
PubMed
Summary
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This study details the crystal structure of a sodium hydrogen compound, highlighting a short Speakman-type hydrogen bond within the anion. The arrangement of anions and sodium atoms reveals symmetry across twofold axes.

Area of Science:

  • Crystallography
  • Solid-state chemistry

Background:

  • Understanding hydrogen bonding is crucial in crystal engineering.
  • The Speakman-type hydrogen bond is a specific motif observed in certain acidic salts.

Purpose of the Study:

  • To elucidate the crystal structure of the title compound, Na(+) x H(+) x [2C(8)H(7)O(3)](-).
  • To characterize the hydrogen bonding interactions present in the crystal lattice.

Main Methods:

  • Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
  • Analysis of bond lengths and atomic positions confirmed the presence of specific interactions.

Main Results:

  • The crystal structure revealed the presence of a short Speakman-type hydrogen bond within the [2C(8)H(7)O(3)](-) anion, with an O...O distance of 2.413 (2) Å.

Related Experiment Videos

  • Both the anions and the sodium cations (Na(+)) were observed to lie across twofold rotational symmetry axes.

    • Conclusions:

    • The study provides a detailed structural characterization of the title compound.
    • The identified hydrogen bond and symmetry elements offer insights into the packing and interactions within the crystal structure.