The framework topology of ZSM-23: A high silica zeolite
1985
Abstract ZSM-23, a high-silica zeolite, is orthorhombic, space group, Pmmn , with lattice parameters of: a = 5.01 ± 0.02A, b = 21.52 ± 0.04A, and c = 11.13 ± 0.03A. The crystal structures of ZSM-22 and ZSM-23 are closely related in that both zeolites contain structurally identical subunits which generate noninterpenetrating, one-dimensional channels defined by 10-rings which are parallel to the short 5 A axis. The 10-ring channel dimensions in ZSM-22 and ZSM-23 are essentially the same, though subtle differences exist in the shapes of the openings.
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