Steric-Induced Layer Flection in Templated Vanadium Tellurites

Abstract

A series of organically templated vanadium tellurites has been prepared under mild hydrothermal conditions. Single crystals were grown from mixtures of NaVO₃, Na₂TeO₃, and either 1,4-diaminobutane, 1,6-diaminohexane, or <i>N</i>,<i>N</i>,<i>N</i>′,<i>N</i>′-tetramethylethylenediamine in H₂O. Each compound contains similar [V₂Te₂O₁₀]_<i>n</i>^2<i>n</i>– layers. The layer metrics of [1,4-diaminobutaneH₂]­[V₂Te₂O₁₀], [1,6-diaminohexaneH₂]­[V₂Te₂O₁₀], [<i>N</i>,<i>N</i>,<i>N</i>′,<i>N</i>′-tetramethylethylenediamineH₂]­[V₂Te₂O₁₀], and [piperazineH₂]­[V₂Te₂O₁₀] reflect the steric bulk of the respective amines. Topotactic conversions between compounds through amine exchange are possible in reactions in which an increase in the strength of the amine–[V₂Te₂O₁₀]_<i>n</i>^2<i>n</i>– hydrogen-bonding network is observed