Two-Dimensional CsAg5Te3‒xSx Semiconductors: Multi-anion Chalcogenides with Dynamic Disorder and Ultralow Thermal Conductivity
Hodges, James M.; Xia, Yi; Malliakas, Christos D.; Alexander, Grant C. B.; Chan, Maria K. Y.; Kanatzidis, Mercouri G.; Chemistry of Materials 30 (2018) 7245–; doi:10.1021/acs.chemmater.8b03306

data_4003134
_publ_section_title
;
 Two-Dimensional CsAg5Te3--xSx Semiconductors: Multi-anion Chalcogenides
 with Dynamic Disorder and Ultralow Thermal Conductivity
;
_journal_issue                   20
_journal_name_full               'Chemistry of Materials'
_journal_page_first              7245
_journal_paper_doi               10.1021/acs.chemmater.8b03306
_journal_volume                  30
_journal_year                    2018
_chemical_formula_moiety         '2(Ag2.5 Cs0.5 S Te0.5)'
_chemical_formula_sum            'Ag5 Cs S2 Te'
_chemical_formula_weight         863.98
_space_group_crystal_system      tetragonal
_space_group_IT_number           123
_space_group_name_Hall           '-P 4 2'
_space_group_name_H-M_alt        'P 4/m m m'
_audit_creation_date             2018-07-30
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            1
_cell_length_a                   4.282(3)
_cell_length_b                   4.282(3)
_cell_length_c                   11.221(5)
_cell_measurement_reflns_used    3667
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      29.981
_cell_measurement_theta_min      3.631
_cell_volume                     205.7(2)
_computing_cell_refinement       'SAINT V8.34A (Bruker, 2017)'
_computing_data_collection       'APEX2 V2017.3 (Bruker, 2017)'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Bruker Kappa APEX CCD area detector'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  'MX optics'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0374
_diffrn_reflns_av_unetI/netI     0.0141
_diffrn_reflns_Laue_measured_fraction_full 0.993
_diffrn_reflns_Laue_measured_fraction_max 0.991
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            4092
_diffrn_reflns_point_group_measured_fraction_full 0.993
_diffrn_reflns_point_group_measured_fraction_max 0.991
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         30.128
_diffrn_reflns_theta_min         3.631
_diffrn_source                   microsource
_exptl_absorpt_coefficient_mu    19.928
_exptl_absorpt_correction_T_max  0.7460
_exptl_absorpt_correction_T_min  0.4698
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2014/5 (Bruker,2014/5) was used for absorption correction. wR2(int) was 0.1340 before and 0.0518 after correction. The Ratio of minimum to maximum transmission is 0.6298. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            black
_exptl_crystal_colour_primary    black
_exptl_crystal_density_diffrn    6.972
_exptl_crystal_description       plate
_exptl_crystal_F_000             374
_exptl_crystal_size_max          0.053
_exptl_crystal_size_mid          0.048
_exptl_crystal_size_min          0.018
_refine_diff_density_max         1.273
_refine_diff_density_min         -1.365
_refine_diff_density_rms         0.198
_refine_ls_extinction_coef       0.0030(7)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2014/7 (Sheldrick 2014'
_refine_ls_goodness_of_fit_ref   1.307
_refine_ls_hydrogen_treatment    undef
_refine_ls_matrix_type           full
_refine_ls_number_parameters     15
_refine_ls_number_reflns         227
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.307
_refine_ls_R_factor_all          0.0153
_refine_ls_R_factor_gt           0.0153
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0182P)^2^+0.5822P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0421
_refine_ls_wR_factor_ref         0.0421
_reflns_Friedel_coverage         0.000
_reflns_number_gt                227
_reflns_number_total             227
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            cm8b03306_si_003.cif
_cod_data_source_block           csag5tes2_100k
_cod_original_cell_volume        205.8(3)
_cod_database_code               4003134
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_max   0.716
_shelx_estimated_absorpt_t_min   0.418
_olex2_refinement_description
;
;
_shelx_res_checksum              30158
_shelx_hkl_checksum              22399
_olex2_submission_special_instructions 'No special instructions were received'