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#$Date: 2023-04-06 15:31:51 +0300 (Thu, 06 Apr 2023) $
#$Revision: 282478 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/00/74/9007472.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/. The original data for this entry
# were provided the American Mineralogist Crystal Structure Database,
# http://rruff.geo.arizona.edu/AMS/amcsd.php
#
# 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_9007472
loop_
_publ_author_name
'Baur, W. H.'
_publ_section_title
;
 Zur kristallchemie der salzhydrate. Die kristallstrukturen von MgSO4*4H2O
 (leonhardtit) und FeSO4*4H2O (rozenit)
 Locality: synthetic
;
_journal_coden_ASTM              ACCRA9
_journal_issue                   9
_journal_name_full               'Acta Crystallographica'
_journal_page_first              815
_journal_page_last               826
_journal_paper_doi               10.1107/S0365110X62002200
_journal_volume                  15
_journal_year                    1962
_chemical_formula_sum            'H16 Mg2 O16 S2'
_chemical_name_mineral           Starkeyite
_chemical_name_systematic        'Magnesium sulfate(VI) tetrahydrate'
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_cell_angle_alpha                90
_cell_angle_beta                 90.85(17)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   5.922(6)
_cell_length_b                   13.604(4)
_cell_length_c                   7.905(5)
_cell_volume                     636.780
_database_code_amcsd             0009275
_exptl_crystal_density_diffrn    2.007
_refine_ls_R_factor_all          0.078
_cod_duplicate_entry             1100097
_cod_depositor_comments
;
  Z value inserted and formula changed to reflect dimeric nature
  Water oxygen renamed so they are treated as oxygens.
                               Miguel.
;
_cod_original_formula_sum        'Mg S O8 H8'
_cod_database_code               9007472
loop_
_space_group_symop_id
_space_group_symop_operation_xyz
1 x,y,z
2 1/2+x,1/2-y,1/2+z
3 -x,-y,-z
4 1/2-x,1/2+y,1/2-z
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_symmetry_multiplicity
_atom_site_Wyckoff_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_calc_flag
_atom_site_U_iso_or_equiv
Mg1 Mg2+ 4 e 0.0694(6) 0.1028(3) 0.2213(4) 1 d 0.01393
S1 S6+ 4 e 0.1957(3) 0.1068(1) 0.8259(2) 1 d 0.01013
O1 O2- 4 e 0.0058(8) 0.0461(4) 0.7595(6) 1 d 0.01646
O2 O2- 4 e 0.2485(8) 0.0772(4) 0.0024(6) 1 d 0.01646
O3 O2- 4 e 0.3983(8) 0.0911(4) 0.7227(6) 1 d 0.01646
O4 O2- 4 e 0.1290(8) 0.2112(4) 0.8145(6) 1 d 0.01646
O5 O2- 4 e 0.3555(11) 0.0748(5) 0.3591(8) 1 d 0.02280
O6 O2- 4 e 0.7718(11) 0.1394(5) 0.0910(8) 1 d 0.02280
O7 O2- 4 e 0.8907(11) 0.1273(5) 0.4405(8) 1 d 0.02280
O8 O2- 4 e 0.1778(11) 0.2491(5) 0.2195(8) 1 d 0.02280
H1 H1+ 4 e 0.36(1) 0.070(4) 0.485(7) 1 d 0.03040
H2 H1+ 4 e 0.444(10) 0.017(4) 0.323(7) 1 d 0.03040
H3 H1+ 4 e 0.682(10) 0.198(4) 0.092(7) 1 d 0.03040
H4 H1+ 4 e 0.684(10) 0.098(4) 0.017(7) 1 d 0.03040
H5 H1+ 4 e 0.766(10) 0.171(4) 0.463(7) 1 d 0.03040
H6 H1+ 4 e 0.935(10) 0.096(4) 0.547(7) 1 d 0.03040
H7 H1+ 4 e 0.322(10) 0.242(4) 0.275(7) 1 d 0.03040
H8 H1+ 4 e 0.62(1) 0.190(4) 0.759(7) 1 d 0.03040
loop_
_atom_type_symbol
_atom_type_oxidation_number
Mg2+ 2.000
S6+ 6.000
O2- -2.000
H1+ 1.000
loop_
_cod_related_entry_id
_cod_related_entry_database
_cod_related_entry_code
1 AMCSD 0009275