Acta Crystallographica Section C

Crystal Structure Communications

Volume 60, Part 8 (August 2004)

Acta Cryst. (2004). C60, i73-i75 [doi:10.1107/S0108270104013691]

Lithium and beryllium hypophosphites

D. Yu. Naumov, M. I. Naumova, N. V. Podberezskaya and N. V. Kuratieva

Abstract: The structures of monoclinic (C2/m) lithium dihydrogenphosphate, LiH₂PO₂, and tetragonal (P4₁2₁2) beryllium bis(dihydrogenphosphate), Be(H₂PO₂)₂, have been determined by single-crystal X-ray diffraction. The structures consist of layers of hypophosphite anions and metal cations in tetrahedral coordination by O atoms. Within the layers, the anions bridge four Li⁺ and two Be²⁺ cations, respectively. In LiH₂PO₂, the Li atom lies on a twofold axis and the H₂PO₂^- anion has the PO₂ atoms on a mirror plane. In Be(H₂PO₂)₂, the Be atom lies on a twofold axis and the H₂PO₂^- anion is in a general position.

Formula: LiH₂PO₂ and Be(H₂PO₂)₂

Online 21 July 2004


	Structure factor file (CIF format) (16.9 kbytes) Contains datablock I

	Structure factor file (CIF format) (35.0 kbytes) Contains datablock II

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