Abstract
In this letter we describe a novel family of aluminophosphate-based molecular sieves denoted as VPI-5. These molecular sieves are the first to contain rings consisting of greater than twelve tetrahedral atoms. The large pores of the VPI-5 materials are long channels circumscribed by rings containing eighteen tetrahedral atoms and possess free diameters of approximately 12-13 Å.
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Davis, M., Saldarriaga, C., Montes, C. et al. A molecular sieve with eighteen-membered rings. Nature 331, 698–699 (1988). https://doi.org/10.1038/331698a0
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DOI: https://doi.org/10.1038/331698a0
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