Abstract
Two novel heteroatom-containing aluminophosphate molecular sieves, |(C(4)NH(12))(4)|[M(4)Al(12)P(16)O(64)] (denoted MAPO-CJ69, M = Co and Zn), have been solvothermally synthesized using diethylamine as the structure-directing agent. The framework of MAPO-CJ69 exhibits a new zeolite topology which is constructed by strict alternation of metal-centered (Al/M)O(4) tetrahedra and PO(4) tetrahedra to form a three-dimensional anionic [M(4)Al(12)(PO(4))(16)](4-) framework. The structure contains two intersecting 8-ring channels along the [010] and [001] directions, and the protonated diethylamine cations reside in the 8-ring channels to achieve charge neutrality. The structure of MAPO-CJ69 is composed of the 4-4- secondary building unit (SBU), which has been found in some known zeolites, such as AFR, SFO, ZON, OWE, etc. The structural relationships between these zeolites have been discussed.
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