#********************************************************************************* # # Crystallographic Information File for ZSM-18, siliceous # # Reference : # Lawton, S.L. and Rohrbaugh, W.J. # Science, 247, 1319-1321, (1990) # # # CIF downloaded from the IZA-SC Database of Zeolite Structures # Ch. Baerlocher and L.B. McCusker, # Database of Zeolite Structures: http://www.iza-structure.org/databases/ # #********************************************************************************** data_ZSM-18_siliceous _chemical_name_systematic 'ZSM-18, siliceous' _cell_length_a 13.175 _cell_length_b 13.175 _cell_length_c 15.848 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_formula_units_Z 1 _space_group.name_H-M_ref 'P 63/m' _symmetry_space_group_name_H-M 'P 63/m' _symmetry_space_group_name_Hall '-P 6c' _space_group.IT_number 176 loop_ _atom_site_label _atom_site_type_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_B_iso_or_equiv _atom_site_occupancy SI1 Si 0.6667 0.3333 0.3495 0 1 SI2 Si 0.6713 0.15 0.47 0 1 SI3 Si 0.4522 0.1161 0.5682 0 1 SI4 Si 0.5266 0.2118 0.75 0 1 O1 O 0.6667 0.3333 0.25 0 1 O2 O 0.6623 0.2169 0.3878 0 1 O3 O 0.5793 0.1388 0.5411 0 1 O4 O 0.4217 0.1984 0.5101 0 1 O5 O 0.454 0.1495 0.6663 0 1 O6 O 0.6506 0.2126 0.75 0 1 O7 O 0.6443 0.02 0.4453 0 1 # End of data for ZSM-18_siliceous