Cyclohexyldimethylammonium tetrahydroxypentaborate

Abstract

The title compound, [C8H18N]+·[B5O6(OH)4]−, has been synthesized under mild solvothermal conditions in the presence of N,N-dimethyl­cyclo­hexyl­amine acting as a template. The structure consists of penta­borate [B5O6(OH)4]− anions connected through O—H⋯O hydrogen bonds into a three-dimensional framework, with large channels along [100], [010] and [001] directions. The [C8H18N]+ cations reside in the channels, inter­acting with the framework through N—H⋯O hydrogen bonds.

Bis(ethylenediammonium) tetradecaborate

“…For general background to the structures and applications of inorganic borates, see: Burns et al (1995); Chen et al (1995); Grice et al (1999); Touboul et al (2003); Wang et al (2007). For some typical examples of organically templated non-metal borates, see: Li et al (2008); Liu et al (2006); Pan et al (2007); Wang et al (2004). For two typical examples of crystalline aluminoborates, see: Wang et al (2008a,b).…”

“…In contrast, the template synthesis of nonmetal borates is still a relatively undeveloped area. Recently, solvothermal method has been proved to be very effective in isolating such borates by employing various organic molecules as templates or structure-directing agents (Li et al, 2008;Liu et al, 2006;Pan et al, 2007;Wang et al, 2004). Our interest is to explore the introduction of aluminium into borate system, constructing novel microporous aluminoborate materials templated by organic agents with different shape and size (Wang et al, 2008a, b).…”