Acta Cryst. (2001). E57, m410-m412  [ doi:10.1107/S1600536801014076 ]

The rubidium salt of an -hydroxycarboxylic acid with six ethereal O atoms

N. C. Kasuga, R.-S. Kanda, K. Yamaguchi and M. Shiro

Abstract: The title compound, aqua[2-({2-[2-(2-{2-[2-(2-hydroxyethoxy)phenoxy]ethoxy}phenoxy)ethoxy]phenoxy}methyl)benzoato]rubidium monohydrate, [Rb(C₃₂H₃₃O₁₀)]·H₂O, shows a monomeric structure. The polyether chain encloses Rb⁺ and adopts an S-like conformation. The Rb⁺ centre is ninefold coordinated by one O atom of the carboxylate group, the O atom of the terminal hydroxy group, six ethereal O atoms and one water molecule. An intermolecular hydrogen bond was observed between the terminal hydroxy group and the hydrate water molecule.

Online 31 August 2001

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