data_global
_chemical_name_mineral 'Kainite'
loop_
_publ_author_name
'Borisov A S'
'Siidra O I'
'Ugolkov V L'
'Kuznetsov A N'
'Firsova V A'
'Charkin D O'
'Platonova N V'
'Pekov I V'
_journal_name_full 'Mineralogical Magazine'
_journal_volume 86 
_journal_year 2022
_journal_page_first 37
_journal_page_last 48
_publ_section_title
;
 Complex hydrogen bonding and thermal behaviour over a wide temperature range
 of kainite KMg(SO4)Cl*2.75H2O
 Note: T = 100 K
;
_database_code_amcsd 0021072
_chemical_compound_source 'Wilhelmshall, Halberstadt, Saxony-Anhalt, Germany'
_chemical_formula_sum 'K4 Mg4 S4 Cl4 O27 H22'
_cell_length_a 19.6742
_cell_length_b 16.18240
_cell_length_c 9.49140
_cell_angle_alpha 90
_cell_angle_beta 94.8840
_cell_angle_gamma 90
_cell_volume 3010.860
_exptl_crystal_density_diffrn      2.157
_symmetry_space_group_name_H-M 'C 1 2/m 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'
  '-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
K1   0.19146   0.50000   0.41940   0.00972
K2   0.19274   0.00000   0.93944   0.00870
K3   0.19459   0.30633   0.84773   0.01079
Mg1   0.00000   0.50000   0.50000   0.00560
Mg2   0.00000   0.00000   0.00000   0.00600
Mg3   0.25000   0.25000   0.50000   0.00650
Mg4   0.00014   0.24850   0.24822   0.00590
S1   0.09713   0.33123   0.51696   0.00498
S2  -0.09851   0.16750  -0.01353   0.00515
Cl1   0.21237   0.00000   0.27354   0.01229
Cl2   0.13966   0.00000   0.62304   0.01103
Cl3   0.17902   0.38978   0.13560   0.01358
O1   0.07142   0.23267   0.91539   0.00810
O2   0.07127   0.26847   0.41419   0.00870
O3   0.07516   0.31213   0.65747   0.00870
O4   0.07351   0.41410   0.47141   0.00840
O5   0.07163   0.08636   0.96308   0.00820
O6   0.07652   0.18429   0.15636   0.00810
O7   0.17258   0.33261   0.52621   0.00740
O8   0.17301   0.16660   0.01779   0.00800
OW1   0.04007   0.00000   0.21913   0.00950
OW2   0.02095   0.50000   0.71999   0.00910
OW3   0.21256   0.17391   0.65194   0.01240
OW4   0.02579   0.35847   0.14657   0.00880
OW5   0.01978   0.13549   0.64843   0.00960
OW6   0.19665   0.18599   0.34253   0.01070
OW7   0.14690   0.50000   0.84200   0.04340
H1A   0.09100   0.00000   0.23100   0.06500
H1B   0.01400   0.00000   0.30500   0.06500
H2A   0.07060   0.50000   0.75300   0.06500
H2B   0.00000   0.50000   0.81200   0.06500
H3A   0.24690   0.15000   0.72400   0.06500
H3B   0.18230   0.12490   0.63400   0.06500
H4A   0.07580   0.36500   0.14000   0.06500
H4B   0.00400   0.40390   0.19800   0.06500
H5A   0.06460   0.10680   0.65100   0.06500
H5B  -0.00840   0.09390   0.69500   0.06500
H6A   0.20060   0.12540   0.32700   0.06500
H6B   0.15280   0.20500   0.29300   0.06500
H7A   0.19210   0.50000   0.80100   0.06500
H7B   0.14900   0.50000   0.94730   0.06500
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
K1 0.00860 0.01010 0.01080 0.00000 0.00303 0.00000
K2 0.00790 0.00910 0.00940 0.00000 0.00215 0.00000
K3 0.00961 0.01477 0.00804 -0.00289 0.00105 -0.00005
Mg1 0.00430 0.00610 0.00640 0.00000 0.00110 0.00000
Mg2 0.00520 0.00630 0.00660 0.00000 0.00150 0.00000
Mg3 0.00540 0.00700 0.00720 0.00060 0.00170 0.00000
Mg4 0.00510 0.00740 0.00530 0.00020 0.00060 -0.00050
S1 0.00396 0.00600 0.00497 0.00030 0.00056 0.00014
S2 0.00431 0.00620 0.00502 0.00003 0.00069 0.00004
Cl1 0.01530 0.01120 0.01050 0.00000 0.00130 0.00000
Cl2 0.01020 0.01090 0.01210 0.00000 0.00190 0.00000
Cl3 0.00884 0.01620 0.01600 -0.00235 0.00302 -0.00495
O1 0.00750 0.00860 0.00790 0.00020 -0.00020 0.00120
O2 0.00740 0.01000 0.00840 0.00000 -0.00040 -0.00170
O3 0.00810 0.01210 0.00630 -0.00160 0.00230 0.00090
O4 0.00770 0.00770 0.01020 0.00220 0.00220 0.00170
O5 0.00850 0.00650 0.00970 -0.00110 0.00200 -0.00150
O6 0.00760 0.01060 0.00630 0.00130 0.00180 -0.00100
O7 0.00490 0.00720 0.01000 0.00050 0.00090 -0.00040
O8 0.00520 0.00970 0.00930 0.00040 0.00080 0.00060
OW1 0.00950 0.01130 0.00790 0.00000 0.00180 0.00000
OW2 0.00890 0.01110 0.00730 0.00000 0.00080 0.00000
OW3 0.01200 0.01110 0.01450 0.00010 0.00320 0.00330
OW4 0.00820 0.00850 0.00980 0.00000 0.00190 -0.00040
OW5 0.00880 0.00960 0.01040 0.00200 0.00130 -0.00020
OW6 0.00780 0.01150 0.01240 0.00170 -0.00200 -0.00300
OW7 0.01260 0.10600 0.01110 0.00000 -0.00120 0.00000