I-Y-Type hlobo ama-molelisalar sieves anesakhiwo se-hexagonal esiseduze esifana nedayimane. Uma ikheji le-beta lisetshenziswa njengeyunithi yesakhiwo ukuze lithathe indawo ye-atom ye-atom yekhabhoni yedayimane, kanti amakheji amabili e-beta asondelene axhunyiwe ndawonye ngamakheji amane we-hexagonal, lapho amakheji amane we-beta axhumeke khona maphakathi nama-vertex we-tetrahedron, an Kwakhiwa isakhiwo se-Octahedral ze-Zeolite Crystal. Ngokuqhubeka nokuxhumanisa nalesi sakhiwo, kwatholakala ukwakheka kwesakhiwo se-y-y. Kulesi sakhiwo, ikheji elikhulu elakhiwe yi-β cage cage eyi-hexagonal liyikheji le-zeolite eziyisishiyagalombili, futhi izimbobo zazo ezihlanganisiwe zingamasongo eziyishumi nambili kanambambili, okungusayizi womgogodla oyisilinganiso esingu-0.74NM, okuyinto usayizi we-pore of y-hlobo we-y-hlobo moleculal ngesihlungo se-y-hlobo somusi. X Thayipha ngesihlungo se-molecular kanye nohlobo lwesakhiwo se-molecular solekthar lufana ncamashi, kepha y y hlobo uhlobo lwe-molecular aluminium ratio luphezulu, ukuqina kwe-hydrothermal kuqinile, ngakho-ke kusetshenziswa kabanzi.
