Tetraethylammonium dihydrogenarsenate bis(arsenic acid) and 1,4-diazoniabicyclo[2.2.2]octane bis(dihydrogenarsenate) arsenic acid: hydrogen-bonded networks containing dihydrogenarsenate anions and neutral arsenic acid molecules

Acta Crystallogr C. 2007 Jul;63(Pt 7):m308-11. doi: 10.1107/S0108270107023967. Epub 2007 Jun 14.

Abstract

The title compounds, (C(8)H(20)N)[H(2)AsO(4)][H(3)AsO(4)](2), (I), and (C(6)H(14)N(2))[H(2)AsO(4)](2)[H(3)AsO(4)], (II), are unusual salts containing organic cations, dihydrogenarsenate anions and neutral arsenic acid molecules. In (I), the dihydrogenarsenate anion lies across a twofold rotation axis in the space group C2/c, while the cation is disordered across a centre of inversion. The [H(2)AsO(4)](-) and H(3)AsO(4) species interact by way of O-H...O hydrogen bonds, leading to sheets and a three-dimensional network for (I) and (II), respectively.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Arsenates / chemistry*
  • Crystallography, X-Ray
  • Hydrogen Bonding
  • Models, Molecular
  • Molecular Structure
  • Octanes / chemistry
  • Piperazines / chemistry*
  • Tetraethylammonium / chemistry*

Substances

  • Arsenates
  • Octanes
  • Piperazines
  • Tetraethylammonium
  • octane
  • triethylenediamine