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Crystal structure of glycine phosphite C2H5NO2·H3PO3

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Abstract

Single crystal X-ray diffraction study of glycine phosphite C2H5NO2·H3PO3 was performed (monoclinic, space group P21/c, a = 7.401(3) Å, b = 8.465(3) Å, c = 9.737(3) Å; β = 100.73(5)°, Z = 4). It has been found that one of hydrogen atoms is located at the centre of symmetry forming two strong hydrogen bonds to yield H4P2O −26 dimers, while another hydrogen atom is statistically disordered over two positions and organizes the dimers into an infinite corrugated chain. The ordering of this hydrogen atom position and/or displacement of the other one from the centre of symmetry will lead to the loss of symmetry centre and lowering of the point group symmetry from C 2h to piezo-active group C 2 or C s .

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Authors and Affiliations

  1. Grebenshikov Institute of Silicate Chemistry, Russian Academy of Sciences, St. Petersburg

    A. E. Lapshin & Yu. I. Smolin

  2. Institute of High-Molecular Compounds, Russian Academy of Sciences, St. Petersburg

    G. A. Pankova

Authors
  1. A. E. Lapshin
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  2. Yu. I. Smolin
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  3. G. A. Pankova
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Original Russian Text Copyright © 2005 by A. E. Lapshin, Yu. I. Smolin, and G. A. Pankova

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Translated from Zhurnal Strukturnoi Khimii, Vol. 46, No. 2, pp.323–327, March–April, 2005.

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Lapshin, A.E., Smolin, Y.I. & Pankova, G.A. Crystal structure of glycine phosphite C2H5NO2·H3PO3 . J Struct Chem 46, 315–319 (2005). https://doi.org/10.1007/s10947-006-0046-9

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  • DOI: https://doi.org/10.1007/s10947-006-0046-9

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