Synthesis and structure of a 1,6-hexyldiamine heptaborate, [H3N(CH2)6NH3][B7O10(OH)3]

A new 1,6-hexyldiamine heptaborate, [H3N(CH2)6NH3][B7O10(OH)3] (1), has been solvothermally synthesized and characterized by single-crystal X-ray diffraction, FTIR, elemental analysis, and thermogravimetric analysis. Compound 1 crystallizes in monoclinic system, space group P21/n with a=8.042(2) Å, b=20.004(4) Å, c=10.103(2) Å, and β=90.42(3)°. The anionic [B7O10(OH)3]n2n− layers are interlinked via hydrogen bonding to form a 3D supramolecular network containing large channels, in which the templated [H3N(CH2)6NH3]2+ cations are located.

Graphical abstractA layered 1,6-hexyldiamine heptaborate, [H3N(CH2)6NH3][B7O10(OH)3], was solvothermally synthesized at 150 °C. It is a layer borate and crystallized in monoclinic space group P21/n with a=8.042(2) Å, b=20.004(4) Å, c=10.103(2) Å, β=90.42(3)°.Figure optionsDownload full-size imageDownload as PowerPoint slide