Synthesis, Structure, and Properties of a New Family of Mixed-Framework Chalcohalide Semiconductors: CdSbS2X (X = Cl, Br), CdBiS2X (X = Cl, Br), and CdBiSe2X (X = Br, I)
Wang, Lei; Hung, Yi-Chung; Hwu, Shiou-Jyh; Koo, Hyun-Joo; Whangbo, M.-H.; Chemistry of Materials 18 (2006) 1219–; doi:10.1021/cm0522230

data_4001495
_publ_section_title
;
 Synthesis, Structure, and Properties of a New Family of Mixed-Framework
 Chalcohalide Semiconductors:&#x00A0; CdSbS2X (X = Cl, Br), CdBiS2X (X =
 Cl, Br), and CdBiSe2X (X = Br, I)
;
_journal_issue                   5
_journal_name_full               'Chemistry of Materials'
_journal_page_first              1219
_journal_paper_doi               10.1021/cm0522230
_journal_volume                  18
_journal_year                    2006
_chemical_formula_moiety         'Bi Br Cd Se2'
_chemical_formula_sum            'Bi Br Cd Se2'
_chemical_formula_weight         559.21
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           62
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.025(2)
_cell_length_b                   4.1190(8)
_cell_length_c                   13.143(3)
_cell_measurement_reflns_used    3585
_cell_measurement_temperature    293.15
_cell_measurement_theta_max      26.3714
_cell_measurement_theta_min      2.0324
_cell_volume                     542.7(2)
_computing_cell_refinement       'CrystalClear (Rigaku/MSC, 1999)'
_computing_data_collection       'CrystalClear (Rigaku/MSC, 1999)'
_computing_data_reduction        'CrystalClear (Rigaku/MSC, 1999)'
_computing_molecular_graphics    'SHELXTL (Bruker-AXS, 1999)'
_computing_publication_material  'SHELXTL (Bruker-AXS, 1999)'
_computing_structure_refinement  'SHELXTL (Bruker-AXS, 1999)'
_computing_structure_solution    'SHELXTL (Bruker-AXS, 1999)'
_diffrn_ambient_temperature      293.15
_diffrn_detector_area_resol_mean 14.6199
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_details
;
scan:
    Number of images: 360
               Slice: -90.0000 - 90.0000
         Image width: 0.5000
            Exp time: 15.0000
       Rotation axis: Omega
               Omega: 0.0000
                 Chi: 45.0000
                 Phi: 0.0000
                 XTD: 27.1416
              2theta: -0.0755
scan:
    Number of images: 120
               Slice: -30.0000 - 30.0000
         Image width: 0.5000
            Exp time: 15.0000
       Rotation axis: Omega
               Omega: 0.0000
                 Chi: 45.0000
                 Phi: 90.0000
                 XTD: 27.1416
              2theta: -0.0755

;
_diffrn_measurement_device
;
Mercury CCD (2x2 bin mode)
;
_diffrn_measurement_device_details
;
AFC8: Eulerian 3-circle
;
_diffrn_measurement_device_type  'Rigaku AFC8S'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_detector       CCD
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0476
_diffrn_reflns_av_sigmaI/netI    0.0214
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            5021
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         3.10
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    56.899
_exptl_absorpt_correction_T_max  0.3421
_exptl_absorpt_correction_T_min  0.0286
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'REQAB, CrystalClear'
_exptl_crystal_colour            Black
_exptl_crystal_density_diffrn    6.844
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Needle
_exptl_crystal_F_000             936
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.02
_exptl_crystal_size_min          0.02
_refine_diff_density_max         3.111
_refine_diff_density_min         -1.249
_refine_diff_density_rms         0.283
_refine_ls_extinction_coef       0.0079(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.012
_refine_ls_matrix_type           full
_refine_ls_number_parameters     35
_refine_ls_number_reflns         633
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.012
_refine_ls_R_factor_all          0.0291
_refine_ls_R_factor_gt           0.0258
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0289P)^2^+9.9133P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0576
_refine_ls_wR_factor_ref         0.0588
_reflns_number_gt                591
_reflns_number_total             633
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cm0522230si20051006_033637.cif
_cod_data_source_block           CdBiSe2Br_LW2-55c-new
_cod_original_cell_volume        542.71(19)
_cod_original_sg_symbol_H-M      Pnma
_cod_database_code               4001495