High-Resolution Synchrotron Studies and Magnetic Properties of Frustrated Antiferromagnets MAl2S4(M = Mn2+, Fe2+, Co2+)
Menard, Melissa C.; Ishii, Rieko; Higo, Tomoya; Nishibori, Eigi; Sawa, Hiroshi; Nakatsuji, Satoru; Chan, Julia Y.; Chemistry of Materials 23 (2011) 3086–; doi:10.1021/cm200561p

data_4000772
_publ_section_title
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 High-Resolution Synchrotron Studies and Magnetic Properties of Frustrated
 Antiferromagnets MAl2S4(M = Mn2+, Fe2+, Co2+)
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_journal_issue                   12
_journal_name_full               'Chemistry of Materials'
_journal_page_first              3086
_journal_paper_doi               10.1021/cm200561p
_journal_volume                  23
_journal_year                    2011
_chemical_formula_moiety         'Al2 Fe S4'
_chemical_formula_sum            'Al2 Fe S4'
_chemical_formula_weight         238.05
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           164
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  '-P 3 2"'
_symmetry_space_group_name_H-M   'P -3 m 1'
_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                120.00
_cell_formula_units_Z            1
_cell_length_a                   3.6825(13)
_cell_length_b                   3.6825(13)
_cell_length_c                   12.1920(12)
_cell_measurement_reflns_used    1506
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      28.92
_cell_measurement_theta_min      3.64
_cell_volume                     143.18(7)
_computing_cell_refinement       'Bruker SAINT v7.56A'
_computing_data_collection       'Bruker APEX2 v2009.7.0'
_computing_data_reduction        'Bruker SAINT v7.56A'
_computing_molecular_graphics    'Bruker SHELXTL v6.14'
_computing_publication_material  'Bruker SHELXTL v6.14'
_computing_structure_refinement  'Bruker SHELXTL v6.14'
_computing_structure_solution    'Bruker SHELXTL v6.14'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device_type  'Bruker APEXII'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  'Si-<111> channel cut crystal'
_diffrn_radiation_source         synchrotron
_diffrn_radiation_type           synchrotron
_diffrn_radiation_wavelength     0.77490
_diffrn_reflns_av_R_equivalents  0.1238
_diffrn_reflns_av_sigmaI/netI    0.0889
_diffrn_reflns_limit_h_max       4
_diffrn_reflns_limit_h_min       -4
_diffrn_reflns_limit_k_max       4
_diffrn_reflns_limit_k_min       -4
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            1506
_diffrn_reflns_theta_full        28.92
_diffrn_reflns_theta_max         28.92
_diffrn_reflns_theta_min         3.64
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    5.371
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
Interpolation using  Int.Tab. Vol. C (1992) p. 523,Tab. 6.3.3.3
for values of muR in the range 0-2.5, and Int.Tab. Vol.II (1959)
p.302; Table 5.3.6 B for muR in the range 2.6-10.0.
The interpolation procedure of C.W.Dwiggins Jr (Acta Cryst.(1975)
A31,146-148) is used with some modification.
;
_exptl_crystal_colour            'dark brown'
_exptl_crystal_density_diffrn    2.761
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             116
_exptl_crystal_size_max          0.04
_exptl_crystal_size_mid          0.02
_exptl_crystal_size_min          0.005
_refine_diff_density_max         1.368
_refine_diff_density_min         -0.669
_refine_diff_density_rms         0.243
_refine_ls_extinction_coef       0.47(9)
_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   1.134
_refine_ls_matrix_type           full
_refine_ls_number_parameters     13
_refine_ls_number_reflns         148
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.134
_refine_ls_R_factor_all          0.0836
_refine_ls_R_factor_gt           0.0566
_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^)+(0.0643P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1262
_refine_ls_wR_factor_ref         0.1498
_reflns_number_gt                113
_reflns_number_total             148
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            cm200561p_si_003.cif
_cod_data_source_block           lsu004
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Trigonal' changed to 'trigonal'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
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_cod_database_code               4000772