data_global _chemical_name_mineral 'Revdite' loop_ _publ_author_name 'Rastsvetaeva R K' 'Mikheeva M G' 'Yamnova N A' 'Pushcharovskii D Yu' 'Khomyakov A P' _journal_name_full 'Soviet Physics Crystallography' _journal_volume 37 _journal_year 1992 _journal_page_first 632 _journal_page_last 636 _publ_section_title ; Crystal structure of revdite Na16[Si4O6(OH)5]2[Si8O15(OH)6](OH)10*28H2O Note: changed Si6(z) sign and OH11(y) value to match reported bond distances ; _database_code_amcsd 0015591 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Si16 Na16 (O81 H82)' _cell_length_a 53.83 _cell_length_b 9.972 _cell_length_c 6.907 _cell_angle_alpha 90 _cell_angle_beta 96.78 _cell_angle_gamma 90 _cell_volume 3681.700 _exptl_crystal_density_diffrn 1.981 _symmetry_space_group_name_H-M 'C 1 2 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' '-x,y,-z' '1/2-x,1/2+y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv Si1 0.20250 0.20800 0.68000 0.00887 Si2 0.29970 0.49200 -0.01000 0.02026 Si3 0.27270 0.49800 0.57300 0.02026 Si4 0.45220 0.46500 0.68000 0.03800 Si5 0.45280 0.02800 0.67900 0.03293 Si6 0.45280 0.24400 -0.00800 0.02913 Si7 0.29730 0.28200 0.31900 0.01520 Si8 0.47410 0.24700 0.43000 0.03040 Na1 0.36580 0.48900 0.12800 0.03926 Na2 0.20820 0.48900 0.95700 0.03546 Na3 0.13020 0.49200 0.83300 0.02913 Na4 0.38300 0.25000 0.86700 0.02533 Na5 0.04630 0.24500 0.01400 0.03673 Na6 0.50000 0.49200 0.00000 0.02406 Na7 0.11750 0.25400 0.13400 0.03166 Na8 0.50000 0.00100 0.00000 0.01646 Na9 0.25070 0.26500 -0.00500 0.05319 Wat1 0.02390 0.25200 0.57600 0.01646 O-H2 0.24270 0.48900 0.50200 0.01013 O-H3 0.17270 0.23500 0.60200 0.02406 Wat4 0.27620 0.15300 0.79000 0.03166 O-H5 0.11840 0.50500 0.20200 0.02406 O-H6 0.07500 0.49700 0.37000 0.03166 O-H7 0.27960 0.14600 0.27400 0.01646 O8 0.29200 0.36600 0.10500 0.00760 O-H9 0.38130 0.49100 0.80200 0.02533 O-H10 0.36610 0.25600 0.18600 0.02153 O-H11 0.13270 0.25800 0.80600 0.02786 O-H12 0.42440 0.49300 0.63200 0.02406 O13 0.32650 0.50200 0.94800 0.01773 Wat14 0.41330 0.49600 0.21600 0.03420 Wat15 0.35100 0.49500 0.44800 0.03926 O16 0.20810 0.12700 0.85200 0.03673 Wat17 0.10150 0.25800 0.45100 0.03166 Wat18 0.15280 0.48900 0.55300 0.03673 Wat19 0.16020 0.26100 0.22600 0.03800 O20 0.27760 0.50400 0.81000 0.02026 O-H21 0.32580 0.24800 0.38200 0.02026 Wat22 0.08550 0.50500 0.78300 0.02026 Wat23 0.34010 0.26100 0.77700 0.01900 Wat24 0.40030 0.25200 0.54500 0.02913 O25 0.28630 0.36900 0.48600 0.01900 Wat26 0.16920 0.51200 0.05000 0.02280 O27 0.21270 0.13500 0.50600 0.02026 O-H28 0.42110 0.25400 0.04600 0.05193 O29 0.45930 0.11400 0.88500 0.03546 O30 0.02830 0.39800 0.25700 0.03673 O-H31 0.22470 0.34200 0.19400 0.02406 O32 0.47330 0.23800 0.19700 0.02786 O33 0.21870 0.33900 0.72600 0.01646 O34 0.45980 0.37800 0.88800 0.03293 Wat35 0.02550 0.39400 0.79800 0.04813 O36 0.46410 0.11400 0.49600 0.03293 O37 0.46360 0.38200 0.49300 0.03166 Wat38 0.02600 0.09700 0.78600 0.05066 O-H39 0.02820 0.09500 0.25700 0.04559 O40 0.50000 0.24100 0.50000 0.02533 Wat41 0.07940 0.24800 0.91700 0.03293