IUPAC Nomenclature for Ordered Microporous and Mesoporous Materials and its Application to Non-zeolite Microporous Mineral Phases

摘要

The XUPAC nomenclature for microporous and mesoporous materials can be applied in a relatively straightforward manner to non-zeolite mineral phases. Although not all details of a structure are immediately apparent from the crystal chemical formula, the most relevant attributes usually are. Features such as (1) the chemical composition of both the host structure and the guest species, (2) the composite building unit(s) characteristic of the host structure, (3) the nature of the pore system, and (4) the symmetry of the material can be indicated. Similarities and differences between related minerals (e.g., those within a group) can be seen easily if their crystal chemical formulas are compared. Furthermore, the formula can be expanded or contracted to suit the user's requirements, so only those terms relevant to a particular discussion need be given. Perhaps the most important difference in the application of the nomenclature to non-zeolite versus zeolite microporous phases lies in the availability of the IZA code for zeolites and their analogs. If a similar system describing the host structures of microporous minerals could be devised, the information content of the crystal chemical formula could be significantly increased.