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.
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