#------------------------------------------------------------------------------
#$Date: 2016-02-13 21:28:24 +0200 (Sat, 13 Feb 2016) $
#$Revision: 176429 $
#$URL: svn://www.crystallography.net/cod/cif/2/02/00/2020014.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_2020014
loop_
_publ_author_name
'Havlák, Lubomír'
'Fábry, Jan'
'Henriques, Margarida'
'Dušek, Michal'
_publ_section_title
;
 Structure determination of KScS₂, RbScS₂ and KLnS₂ (Ln = Nd, Sm,
 Tb, Dy, Ho, Er, Tm and Yb) and crystal--chemical discussion
;
_journal_coeditor_code           FA3364
_journal_issue                   7
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              623
_journal_page_last               630
_journal_paper_doi               10.1107/S2053229615011833
_journal_volume                  71
_journal_year                    2015
_chemical_formula_iupac          'K1 Er1 S2'
_chemical_formula_moiety         'Er1 K1 S2'
_chemical_formula_sum            'Er K S2'
_chemical_formula_weight         270.5
_chemical_name_systematic
;
Potassium erbium sulfide
;
_space_group_IT_number           166
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  '-R 3 2"'
_symmetry_space_group_name_H-M   'R -3 m :H'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            3
_cell_length_a                   3.9935(4)
_cell_length_b                   3.9935(4)
_cell_length_c                   21.866(2)
_cell_measurement_reflns_used    1188
_cell_measurement_temperature    296(6)
_cell_measurement_theta_max      28.85
_cell_measurement_theta_min      5.55
_cell_volume                     302.00(5)
_computing_cell_refinement
;
CrysAlis PRO (Agilent, 2014)
;
_computing_data_collection
;
CrysAlis PRO (Agilent, 2014)
;
_computing_data_reduction
;
CrysAlis PRO (Agilent, 2014)
;
_computing_publication_material
;
JANA2006 (Petříček et al., 2014)
;
_computing_structure_refinement
;
JANA2006 (Petříček et al., 2014)
;
_computing_structure_solution
;
SUPERFLIP (Palatinus & Chapuis, 2007)
;
_diffrn_ambient_temperature      296
_diffrn_detector_area_resol_mean 5.1873
_diffrn_measured_fraction_theta_full 1
_diffrn_measured_fraction_theta_max 1
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type
'Xcalibur Gemini Ultra diffractometer with Atlas detector'
_diffrn_measurement_method       ω
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'X-ray tube'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0704
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            1405
_diffrn_reflns_theta_full        29.1
_diffrn_reflns_theta_max         29.1
_diffrn_reflns_theta_min         2.79
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    22.663
_exptl_absorpt_correction_T_max  0.4335
_exptl_absorpt_correction_T_min  0.2546
_exptl_absorpt_correction_type   gaussian
_exptl_absorpt_process_details
;
JANA2006 (Petříček et al., 2014)
;
_exptl_crystal_colour            pink
_exptl_crystal_density_diffrn    4.4616
_exptl_crystal_description       block
_exptl_crystal_F_000             357
_exptl_crystal_size_max          0.083
_exptl_crystal_size_mid          0.072
_exptl_crystal_size_min          0.045
_refine_diff_density_max         1.54
_refine_diff_density_min         -1.01
_refine_ls_extinction_coef       77E1(16)
_refine_ls_extinction_method
;
B-C type 1 Lorentzian isotropic
[Becker, P. J. & Coppens, P. (1974). Acta Cryst. A30, 129--147]
;
_refine_ls_goodness_of_fit_ref   1.81
_refine_ls_number_constraints    0
_refine_ls_number_parameters     9
_refine_ls_number_reflns         132
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0267
_refine_ls_R_factor_gt           0.0267
_refine_ls_shift/su_max          0.0013
_refine_ls_shift/su_mean         0.0008
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details     'w = 1/[σ²(I) + 0.0004I²]'
_refine_ls_weighting_scheme      sigma
_refine_ls_wR_factor_gt          0.0642
_refine_ls_wR_factor_ref         0.0642
_reflns_number_gt                132
_reflns_number_total             132
_reflns_threshold_expression     I>3σ(I)
_cod_data_source_file            fa3364sup1.cif
_cod_data_source_block           VIII
_cod_original_sg_symbol_H-M      'R -3 m'
_cod_original_formula_sum        'Er1 K1 S2'
_cod_database_code               2020014
_cod_database_fobs_code          2020014
loop_
_space_group_symop_id
_space_group_symop_operation_xyz
1 x,y,z
2 -y,x-y,z
3 -x+y,-x,z
4 y,x,-z
5 x-y,-y,-z
6 -x,-x+y,-z
7 -x,-y,-z
8 y,-x+y,-z
9 x-y,x,-z
10 -y,-x,z
11 -x+y,y,z
12 x,x-y,z
13 x+2/3,y+1/3,z+1/3
14 -y+2/3,x-y+1/3,z+1/3
15 -x+y+2/3,-x+1/3,z+1/3
16 y+2/3,x+1/3,-z+1/3
17 x-y+2/3,-y+1/3,-z+1/3
18 -x+2/3,-x+y+1/3,-z+1/3
19 -x+2/3,-y+1/3,-z+1/3
20 y+2/3,-x+y+1/3,-z+1/3
21 x-y+2/3,x+1/3,-z+1/3
22 -y+2/3,-x+1/3,z+1/3
23 -x+y+2/3,y+1/3,z+1/3
24 x+2/3,x-y+1/3,z+1/3
25 x+1/3,y+2/3,z+2/3
26 -y+1/3,x-y+2/3,z+2/3
27 -x+y+1/3,-x+2/3,z+2/3
28 y+1/3,x+2/3,-z+2/3
29 x-y+1/3,-y+2/3,-z+2/3
30 -x+1/3,-x+y+2/3,-z+2/3
31 -x+1/3,-y+2/3,-z+2/3
32 y+1/3,-x+y+2/3,-z+2/3
33 x-y+1/3,x+2/3,-z+2/3
34 -y+1/3,-x+2/3,z+2/3
35 -x+y+1/3,y+2/3,z+2/3
36 x+1/3,x-y+2/3,z+2/3
loop_
_atom_site_type_symbol
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_calc_flag
_atom_site_occupancy
K K 0 0 0 0.0144(13) Uani d 1
Er Er 0.333333 0.666667 0.166667 0.0074(4) Uani d 1
S S 0 0 0.23407(17) 0.0078(9) Uani d 1
loop_
_atom_type_symbol
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
Er -0.2586 4.9576 'International Tables Vol C tables 4.2.6.8 and 6.1.1.1'
K 0.2009 0.2494 'International Tables Vol C tables 4.2.6.8 and 6.1.1.1'
S 0.1246 0.1234 'International Tables Vol C tables 4.2.6.8 and 6.1.1.1'
loop_
_exptl_crystal_face_index_h
_exptl_crystal_face_index_k
_exptl_crystal_face_index_l
_exptl_crystal_face_perp_dist
-1 4 20 0.0271
1 -4 -20 0.0271
-5 1 -5 0.042
5 -1 5 0.042
1 -4 -21 0.0223
-1 4 21 0.0223
6 -2 -3 0.0359
-5 2 1 0.0529
0 5 -8 0.0459
-2 2 -28 0.0271
1 -4 23 0.0279
-1 -4 4 0.029
-5 4 15 0.0354
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
S K S 25_444 25_544 78.19(5)
S K S 25_444 25_554 78.19(5)
S K S 25_444 16_445 101.81(5)
S K S 25_444 16_455 101.81(5)
S K S 25_444 16_555 180.0(5)
S K S 25_544 25_554 78.19(5)
S K S 25_544 16_445 101.81(5)
S K S 25_544 16_455 180.0(5)
S K S 25_544 16_555 101.81(5)
S K S 25_554 16_445 180.0(5)
S K S 25_554 16_455 101.81(5)
S K S 25_554 16_555 101.81(5)
S K S 16_445 16_455 78.19(5)
S K S 16_445 16_555 78.19(5)
S K S 16_455 16_555 78.19(5)
S Er S . 1_565 93.72(6)
S Er S . 1_665 93.72(6)
S Er S . 16_455 86.28(6)
S Er S . 16_555 86.28(6)
S Er S . 16_565 180.0(5)
S Er S 1_565 1_665 93.72(6)
S Er S 1_565 16_455 86.28(6)
S Er S 1_565 16_555 180.0(5)
S Er S 1_565 16_565 86.28(6)
S Er S 1_665 16_455 180.0(5)
S Er S 1_665 16_555 86.28(6)
S Er S 1_665 16_565 86.28(6)
S Er S 16_455 16_555 93.72(6)
S Er S 16_455 16_565 93.72(6)
S Er S 16_555 16_565 93.72(6)
K S K 13_445 13_455 78.19(8)
K S K 13_445 13_555 78.19(8)
K S K 13_455 13_555 78.19(8)
Er S Er 1_445 1_545 93.72(9)
Er S Er 1_445 . 93.72(9)
Er S Er 1_545 . 93.72(9)
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_site_symmetry_2
_geom_bond_distance
K S 25_444 3.166(3)
K S 25_544 3.166(3)
K S 25_554 3.166(3)
K S 16_445 3.166(3)
K S 16_455 3.166(3)
K S 16_555 3.166(3)
Er S . 2.737(2)
Er S 1_565 2.737(2)
Er S 1_665 2.737(2)
Er S 16_455 2.737(2)
Er S 16_555 2.737(2)
Er S 16_565 2.737(2)
S S 16_445 3.742(4)
S S 16_455 3.742(4)
S S 16_555 3.742(4)
