(BiSe)1.23CrSe2 and (BiSe)1.22(Cr1.2Se2)2: Magnetic Anisotropy in the First Structurally Characterized Bi-Se-Cr Ternary Compounds.
Clarke, Samantha M.; Freedman, Danna E.; Inorganic chemistry 54 (2015) 2765–2771; doi:10.1021/ic5029178

data_4342500
_publ_section_title
;
 (BiSe)1.23CrSe2 and (BiSe)1.22(Cr1.2Se2)2: Magnetic Anisotropy in the
 First Structurally Characterized Bi-Se-Cr Ternary Compounds.
;
_journal_issue                   6
_journal_name_full               'Inorganic chemistry'
_journal_page_first              2765
_journal_page_last               2771
_journal_paper_doi               10.1021/ic5029178
_journal_volume                  54
_journal_year                    2015
_chemical_formula_moiety         '0.13(Bi8 Se8)'
_chemical_formula_sum            'Bi Se'
_chemical_formula_weight         287.94
_chemical_name_systematic        'Bismuth Chromium Selenide'
_space_group_crystal_system      monoclinic
_space_group_IT_number           12
_space_group_name_Hall           '-C 2y'
_space_group_name_H-M_alt        'C 1 2/m 1'
_symmetry_space_group_name_Hall  '-C 2y'
_symmetry_space_group_name_H-M   'C 1 2/m 1'
_atom_sites_solution_primary     direct
_audit_creation_date             2014-10-28
_audit_creation_method
;
Olex2 1.2
(compiled 2014.09.19 svn.r3010 for OlexSys, GUI svn.r4874)
;
_cell_angle_alpha                90
_cell_angle_beta                 93.552(5)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   6.2060(4)
_cell_length_b                   5.8849(5)
_cell_length_c                   17.2377(10)
_cell_measurement_reflns_used    1957
_cell_measurement_temperature    250
_cell_measurement_theta_max      67.18
_cell_measurement_theta_min      10.33
_cell_volume                     628.34(8)
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'ShelXT (Sheldrick, 2008)'
_diffrn_ambient_temperature      250
_diffrn_detector                 'Bruker APEX2 area detector'
_diffrn_detector_area_resol_mean 7.9
_diffrn_detector_type            'CCD area detector'
_diffrn_measured_fraction_theta_full 0.658
_diffrn_measured_fraction_theta_max 0.707
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  'mirror optics'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.1317
_diffrn_reflns_av_unetI/netI     0.0702
_diffrn_reflns_Laue_measured_fraction_full 0.658
_diffrn_reflns_Laue_measured_fraction_max 0.707
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       4
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            2591
_diffrn_reflns_point_group_measured_fraction_full 0.658
_diffrn_reflns_point_group_measured_fraction_max 0.707
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         65.038
_diffrn_reflns_theta_min         10.410
_diffrn_source                   'microfocus sealed X-ray tube'
_diffrn_source_type              'Incoatec I\ms'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    60.349
_exptl_absorpt_correction_T_max  0.7529
_exptl_absorpt_correction_T_min  0.3597
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2012/1 (Bruker,2012) was used for absorption correction.
wR2(int) was 0.1352 before and 0.0711 after correction.
The Ratio of minimum to maximum transmission is 0.4778.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            'metallic grayish'
_exptl_crystal_colour_lustre     metallic
_exptl_crystal_colour_modifier   grayish
_exptl_crystal_density_diffrn    3.044
_exptl_crystal_description       plate
_exptl_crystal_F_000             468
_exptl_crystal_preparation       'solid state reaction'
_exptl_crystal_recrystallization_method 'salt flux'
_exptl_crystal_size_max          0.05
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.02
_refine_diff_density_max         4.963
_refine_diff_density_min         -4.450
_refine_diff_density_rms         0.722
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.086
_refine_ls_hydrogen_treatment    undef
_refine_ls_matrix_type           full
_refine_ls_number_parameters     13
_refine_ls_number_reflns         412
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.086
_refine_ls_R_factor_all          0.1399
_refine_ls_R_factor_gt           0.1238
_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^)+(0.1767P)^2^+212.0842P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.3092
_refine_ls_wR_factor_ref         0.3258
_reflns_Friedel_coverage         0.000
_reflns_number_gt                346
_reflns_number_total             412
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ic5029178_si_002.cif
_cod_data_source_block           c2
_cod_depositor_comments
'Adding full bibliography for 4342497--4342502.cif.'
_cod_database_code               4342500
_shelxl_version_number           2013-3
_olex2_refinement_description
;
1. Others
 Fixed U12: Bi1(0) Se1(0)
 Fixed U23: Bi1(0) Se1(0)
 Fixed Y: Bi1(0.5) Se1(0)
;
_shelx_res_checksum              97349
_shelx_hkl_checksum              7594
_olex2_exptl_crystal_mounting_method 'Paratone oil on kapton head'
_olex2_submission_special_instructions 'No special instructions were received'