Structural Frustration and Occupational Disorder: The Rare Earth Metal Polysulfides Tb8S14.8, Dy8S14.9, Ho8S14.9, and Y8S14.8
Thomas Doert; Christian Graf; Inga G. Vasilyeva; Walter Schnelle; Inorganic Chemistry 51 (2012) 282–289; doi:10.1021/ic201639f

data_4327788
_publ_contact_author_address
;
Thomas Doert
Fachrichtung Chemie und Lebensmittelchemie
Technische Universit\"at Dresden
D-01062 Dresden
Germany
;
_publ_contact_author_email       Thomas.Doert@chemie.tu-dresden.de
_publ_contact_author_fax         49(351)463-37287
_publ_contact_author_phone       49(351)463-33864
_publ_section_title
;
 Structural Frustration and Occupational Disorder: The Rare Earth Metal
 Polysulfides Tb8S14.8, Dy8S14.9, Ho8S14.9, and Y8S14.8
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              282
_journal_page_last               289
_journal_paper_doi               10.1021/ic201639f
_journal_volume                  51
_journal_year                    2012
_chemical_formula_moiety         'Dy8 S14.86'
_chemical_formula_sum            'Dy6 S11.144'
_chemical_formula_weight         1332.3
_chemical_name_common            'Dysprosium polysulfide'
_chemical_name_systematic
; 
Dysprosium polysulfide
;
_space_group_IT_number           5
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      5
_symmetry_space_group_name_Hall  'A 2'
_symmetry_space_group_name_H-M   'A 1 1 2'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90.34(2)
_cell_formula_units_Z            8
_cell_length_a                   11.584(1)
_cell_length_b                   15.400(2)
_cell_length_c                   15.789(2)
_cell_measurement_reflns_used    7502
_cell_measurement_temperature    295
_cell_measurement_theta_max      32.30
_cell_measurement_theta_min      3.85
_cell_volume                     2816.6(6)
_computing_cell_refinement       'X-AREA, STOE, 2006'
_computing_data_collection       'X-AREA, STOE, 2006'
_computing_data_reduction        'X-AREA, STOE, 2006'
_computing_molecular_graphics
;
DIAMOND-Visuelles Informationssystem f\"ur Kristallstrukturen 
 (G. Bergerhoff, Bonn, 2010)
;
_computing_publication_material
'Jana2006 (Petricek, Dusek & Palatinus, 2010)'
_computing_structure_refinement
'Jana2006 (Petricek, Dusek & Palatinus, 2010)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      295
_diffrn_detector                 'image plate (34 cm diameter)'
_diffrn_detector_area_resol_mean 6.67
_diffrn_detector_type            STOE
_diffrn_measured_fraction_theta_full 0.99
_diffrn_measured_fraction_theta_max 0.99
_diffrn_measurement_details      ' 270 frames, detector distance = 80 mm'
_diffrn_measurement_device       '2-circle goniometer'
_diffrn_measurement_device_type  'STOE IPDS 2'
_diffrn_measurement_method       'rotation method'
_diffrn_radiation_collimation    '0.5 mm diameter, multiple pinhole'
_diffrn_radiation_monochromator  'plane graphite'
_diffrn_radiation_polarisn_norm  0
_diffrn_radiation_source         'x-ray tube'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0884
_diffrn_reflns_av_sigmaI/netI    0.0269
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            42579
_diffrn_reflns_theta_full        31.88
_diffrn_reflns_theta_max         31.88
_diffrn_reflns_theta_min         2.55
_diffrn_source
' sealed x-ray tube, 12 x 0.4 mm long-fine focus'
_diffrn_source_current           40
_diffrn_source_power             2.00
_diffrn_source_voltage           50
_exptl_absorpt_coefficient_mu    33.04
_exptl_absorpt_correction_T_max  0.3174
_exptl_absorpt_correction_T_min  0.1357
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'X-RED, X-SHAPE, STOE 2006'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    6.28
_exptl_crystal_F_000             4595
_exptl_crystal_size_max          0.05
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.02
_refine_diff_density_max         2.84
_refine_diff_density_min         -1.54
_refine_ls_abs_structure_details
'  3957 of Friedel pairs used in the refinement'
_refine_ls_abs_structure_Flack   0.25(2)
_refine_ls_extinction_coef       0.544(5)
_refine_ls_extinction_method
'B-C type 1 gaussian isotropic (Becker & Coppens, 1974)'
_refine_ls_goodness_of_fit_gt    1.30
_refine_ls_goodness_of_fit_ref   1.12
_refine_ls_number_constraints    16
_refine_ls_number_parameters     232
_refine_ls_number_reflns         8909
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0438
_refine_ls_R_factor_gt           0.0264
_refine_ls_shift/su_max          0.0746
_refine_ls_shift/su_mean         0.0067
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details     w=1/(\s^2^(I)+0.0004I^2^)
_refine_ls_weighting_scheme      sigma
_refine_ls_wR_factor_gt          0.0538
_refine_ls_wR_factor_ref         0.0606
_reflns_number_gt                5353
_reflns_number_total             8909
_reflns_threshold_expression     I>3\s(I)
_cod_data_source_file            ic201639f_si_002_4.cif
_cod_data_source_block           III
_cod_original_sg_symbol_Hall     'A 2z'
_cod_database_code               4327788