A zeolite CAN-type aluminoborate with gigantic 24-ring channels

Abstract

A cancrinite type aluminoborate with gigantic 24-ring channels has been made under solvothermal conditions using Al(i-PrO)₃ as the Al source and amines as the structure directing agents. Its framework is alternately constructed from B₅O₁₀ clusters and AlO₄ units, no Al–O–Al linkages exist in the structure. Notably, the wall of the 24-ring channels has odd 11-ring windows, resulting in an unprecedented 3D intersecting channel system.