#------------------------------------------------------------------------------
#$Date: 2011-09-10 04:16:28 +0100 (Sat, 10 Sep 2011) $
#$Revision: 25271 $
#$URL: svn://www.crystallography.net/cod/cif/2/2003594.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/. The original data for this entry
# were provided by IUCr Journals, http://journals.iucr.org/.
#
# The file may be used within the scientific community so long as
# proper attribution is given to the journal article from which the
# data were obtained.
#
data_2003594
loop_
_publ_author_name
'Grehl, M.'
'Fr\"ohlich, R.'
'Thiele, S.'
_publ_section_title
;
 Na~2~O~2~.8H~2~O
;
_journal_issue                   6
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              1038
_journal_page_last               1040
_journal_volume                  51
_journal_year                    1995
_chemical_formula_sum            'H16 Na2 O10'
_chemical_formula_weight         222.10
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_type_scat_source           IntTabC
_cell_angle_alpha                90
_cell_angle_beta                 118.420(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   14.351(3)
_cell_length_b                   6.4680(10)
_cell_length_c                   11.498(2)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293
_cell_measurement_theta_max      18.56
_cell_measurement_theta_min      11.08
_cell_volume                     938.6(3)
_diffrn_measurement_device       'Enraf-Nonius CAD-4'
_diffrn_measurement_method       \w-2\q
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0108
_diffrn_reflns_limit_h_max       0
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            1014
_diffrn_reflns_theta_max         26.33
_diffrn_standards_decay_%        'within statistical fluctuation'
_diffrn_standards_interval_count 250
_diffrn_standards_interval_time  120
_diffrn_standards_number
;3 intensity standard reflection monitored every 120 mins, intensity
variation was within statistical fluctuation; 2 orientation standard
reflections monitored every 250 reflections
;
_exptl_absorpt_coefficient_mu    0.242
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.572
_exptl_crystal_description       irregular
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.159
_refine_diff_density_min         -0.136
_refine_ls_extinction_coef       '\c = 0.029(2)'
_refine_ls_extinction_method     kF~c~[1+0.001\cF~c~^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_goodness_of_fit_obs   1.208
_refine_ls_hydrogen_treatment    refall
_refine_ls_number_parameters     88
_refine_ls_number_reflns         953
_refine_ls_R_factor_obs          0.0241
_refine_ls_shift/esd_max         0.00
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_scheme
'w=1/[\s^2^(Fo)^2^+(0.0294P)^2^+0.44P], where P = (Fo^2^ + 2F~c~^2^)/3'
_refine_ls_wR_factor_obs         0.0700
_reflns_number_observed          815
_reflns_number_total             953
_reflns_observed_criterion       I>=2\s(I)
_[local]_cod_data_source_file    oh1071.cif
_[local]_cod_data_source_block   oh1071a
_cod_database_code               2003594
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
x,-y,1/2+z
-x,-y,-z
-x,y,1/2-z
1/2+x,1/2+y,z
1/2+x,1/2-y,1/2+z
1/2-x,1/2-y,-z
1/2-x,1/2+y,1/2-z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Na .30029(4) -.00453(8) .06811(5) .0280(10)
O .47950(10) .4837(2) .29900(10) .0290(10)
O(1) .14290(10) .1869(2) .00730(10) .0320(10)
O(2) .38520(10) .1309(2) .28800(10) .0290(10)
O(3) .46050(10) -.1637(2) .08330(10) .0310(10)
O(4) .28400(10) -.3415(2) .15000(10) .0300(10)
H(11) .125(2) .215(4) .059(2) .064(7)
H(12) .088(2) .130(3) -.060(2) .055(6)
H(21) .415(2) .240(4) .289(2) .053(6)
H(22) .432(2) .040(3) .323(2) .044(5)
H(31) .481(2) -.296(4) .125(2) .064(6)
H(32) .442(2) -.181(3) .006(2) .051(6)
H(41) .249(2) -.356(3) .180(2) .046(6)
H(42) .344(2) -.404(3) .200(2) .056(6)
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle_site_symmetry_1
_geom_angle_site_symmetry_3
_geom_angle
_geom_angle_publ_flag
O(1) Na O(2) . . 93.16(5) yes
O(2) Na O(4) . 7_545 177.19(5) yes
O(2) Na O(4) . . 90.78(4) yes
O(1) Na O(3) . . 166.22(5) yes
O(4) Na O(3) 7_545 . 83.70(5) yes
O(1) Na O(1) . 7_555 83.75(4) yes
O(4) Na O(1) 7_545 7_555 93.63(4) yes
O(3) Na O(1) . 7_555 85.45(4) yes
O(1) Na O(4) . 7_545 88.46(5) yes
O(1) Na O(4) . . 109.21(5) yes
O(4) Na O(4) 7_545 . 86.52(4) yes
O(2) Na O(3) . . 95.16(5) yes
O(4) Na O(3) . . 81.68(4) yes
O(2) Na O(1) . 7_555 88.83(4) yes
O(4) Na O(1) . 7_555 167.03(5) yes
H(11) O(1) H(12) . . 107(2) yes
H(31) O(3) H(32) . . 107(2) yes
H(21) O(2) H(42) . . 108(2) yes
H(41) O(4) H(42) . . 108(2) yes
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_site_symmetry_2
_geom_bond_distance
_geom_bond_publ_flag
Na O(1) . 2.3710(10) yes
Na O(4) 7_545 2.4200(10) yes
Na O(3) . 2.4480(10) yes
Na Na 7_545 3.5310(10) yes
Na O(2) . 2.3900(10) yes
Na O(4) . 2.4290(10) yes
Na O(1) 7_555 2.5120(10) yes
Na Na 7_555 3.6370(10) yes
O O 4_655 1.499(2) yes
O(1) H(12) . 0.88(2) yes
O(2) H(22) . 0.84(2) yes
O(3) H(32) . 0.81(2) yes
O(4) H(42) . 0.87(2) yes
O(1) H(11) . 0.77(3) yes
O(2) H(21) . 0.83(2) yes
O(3) H(31) . 0.96(2) yes
O(4) H(41) . 0.75(2) yes