Crystal Structures, Electronic Structures, and Physical Properties of Tl4MQ4 (M = Zr or Hf; Q = S or Se)
Cheriyedath Raj Sankar; Savitree Bangarigadu-Sanasy; Abdeljalil Assoud; Holger Kleinke; Inorganic Chemistry 50 (2011) 245–249; doi:10.1021/ic101925a

data_4324134
_publ_section_title
;
 Crystal Structures, Electronic Structures, and Physical Properties of
 Tl4MQ4 (M = Zr or Hf; Q = S or Se)
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              245
_journal_page_last               249
_journal_paper_doi               10.1021/ic101925a
_journal_volume                  50
_journal_year                    2011
_chemical_formula_sum            'Hf Se4 Tl4'
_chemical_formula_weight         1311.81
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   none
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                104.110(14)
_cell_angle_beta                 105.052(13)
_cell_angle_gamma                90.092(13)
_cell_formula_units_Z            5
_cell_length_a                   9.288(8)
_cell_length_b                   9.271(8)
_cell_length_c                   16.005(14)
_cell_measurement_temperature    296(2)
_cell_volume                     1287.6(19)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.895
_diffrn_measured_fraction_theta_max 0.895
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0738
_diffrn_reflns_av_sigmaI/netI    0.1650
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            9280
_diffrn_reflns_theta_full        30.00
_diffrn_reflns_theta_max         30.00
_diffrn_reflns_theta_min         2.93
_exptl_absorpt_coefficient_mu    86.450
_exptl_absorpt_correction_T_max  0.4785
_exptl_absorpt_correction_T_min  0.1295
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'APEX II'
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    8.458
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2660
_exptl_crystal_size_max          0.04
_exptl_crystal_size_mid          0.02
_exptl_crystal_size_min          0.01
_refine_diff_density_max         5.787
_refine_diff_density_min         -6.013
_refine_diff_density_rms         1.338
_refine_ls_extinction_coef       0.00027(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   1.183
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     206
_refine_ls_number_reflns         6715
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.183
_refine_ls_R_factor_all          0.1946
_refine_ls_R_factor_gt           0.1075
_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^)+(0.1000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2355
_refine_ls_wR_factor_ref         0.3284
_reflns_number_gt                3304
_reflns_number_total             6715
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic101925a_si_004.cif
_cod_data_source_block           Tl4HfSe4
_cod_original_cell_volume        1287.7(19)
_cod_database_code               4324134