data_global
_amcsd_formula_title 'CuNa2Si4O10'
loop_
_publ_author_name
'Kawamura K'
'Kawahara A'
_journal_name_full 'Acta Crystallographica, Section B'
_journal_volume 33 
_journal_year 1977
_journal_page_first 1071
_journal_page_last 1075
_publ_section_title
;
 The crystal structure of synthetic copper sodium silicate: CuNa2Si4O10
;
_database_code_amcsd 0020111
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Cu Si4 Na2 O10'
_cell_length_a 10.613
_cell_length_b 7.85
_cell_length_c 6.944
_cell_angle_alpha 118.2
_cell_angle_beta 116.53
_cell_angle_gamma 93.65
_cell_volume 427.579
_exptl_crystal_density_diffrn      2.966
_symmetry_space_group_name_H-M 'P -1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Cu1   0.42590   0.28700   0.47020
Si1   0.80790   0.06010   0.10540
Si2   0.14610   0.29390   0.51520
Si3   0.73670   0.34520   0.49180
Si4   0.74940   0.37770   0.94330
Na1   0.02090   0.24130   0.92090
Na2   0.42050   0.27310   0.95640
O1   0.98750   0.10470   0.28560
O2   0.73990   0.12970   0.28830
O3   0.26780   0.17890   0.10960
O4   0.28260   0.21830   0.54660
O5   0.57310   0.35390   0.39310
O6   0.57900   0.35280   0.81670
O7   0.14420   0.39590   0.78190
O8   0.81890   0.37070   0.77290
O9   0.14440   0.46680   0.44810
O10   0.79510   0.20400   0.99610
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Cu1 0.01846 0.02152 0.01809 0.00643 0.01020 0.01031
Si1 0.02007 0.01662 0.01809 0.00643 0.01020 0.01031
Si2 0.01886 0.01875 0.01849 0.00585 0.00974 0.00997
Si3 0.02087 0.01832 0.01795 0.00673 0.01113 0.00997
Si4 0.02167 0.01917 0.01769 0.00702 0.01136 0.01047
Na1 0.03532 0.02855 0.04368 0.01637 0.02458 0.02179
Na2 0.02890 0.03472 0.02773 0.00994 0.01438 0.01977
O1 0.01645 0.01896 0.02412 0.03246 0.00742 0.00879
O2 0.03251 0.02322 0.02465 0.00965 0.01901 0.01115
O3 0.02368 0.01768 0.02010 0.00526 0.01020 0.00845
O4 0.02207 0.02833 0.02747 0.01170 0.01554 0.01706
O5 0.02528 0.02706 0.02412 0.01082 0.01484 0.01605
O6 0.02207 0.03494 0.02278 0.00965 0.01206 0.01673
O7 0.02448 0.02088 0.02050 0.00731 0.01368 0.00980
O8 0.02007 0.02706 0.02144 0.00936 0.01183 0.01419
O9 0.02488 0.02343 0.02559 0.01053 0.01484 0.01453
O10 0.03612 0.02386 0.02626 0.01257 0.01786 0.01537