The earlier appearance of the hysteresis loop on KCHA over that on NaCHA suggested a higher extent of blockage of the 8-ring window aperture by K+ cations.
Dehydration produces predominantly one Cu II) species located in recessed sites such as hexagonal prism for L and offertite and six-ring window of a gmelinite cage for omega based on a lack of broadening of its ESR lines by added oxygen.
Each faujasite layer contains a 12-ring window, and it is the variation in stacking between the two zeolites that affords two distinct framework types with different symmetry (Burkett & Davis, 1993 ▸; Baerlocher et al., 1994 ▸).
"Her political career is over," said Terrence Smith, 44, outside a gutted mobile-phone store, its alarm bells still ringing, windows smashed and its stock of new smartphones vanished.
Compound 1 consists of ZnO4 tetrahedra, HPO3 and HPO2(OH) pseudopyramids, exhibiting a complex double layered structure with 12-ring windows.
Diffusion is very slow as the propene molecules are only just small enough to pass through the distorted 8-ring windows of the DDR structure.
18-Ring cages enable the formation of relatively bulkier transition states while the diffusion of the product molecules out of the 10-ring channel system is not slowed down due to 10-ring windows.
Compound 1 exhibits a 4-connected 2D (4, 4) net with pentameric [Zn2 HPO4 3] clusters as secondary building units (SBUs); 2 possesses a complex double layered structure with 12-ring windows.
These included bell-ringing, windows shattering, throwing of stones and bottles, wall-writing, and the locking of their daughter in a room with no key.
The relative orientations of 12-ring windows give rise to 'supercages', characteristic of this framework polytype.
