#------------------------------------------------------------------------------
#$Date: 2016-02-20 18:35:30 +0200 (Sat, 20 Feb 2016) $
#$Revision: 176787 $
#$URL: svn://www.crystallography.net/cod/cif/2/21/44/2214423.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/. The original data for this entry
# were provided by IUCr Journals, http://journals.iucr.org/.
#
# The file may be used within the scientific community so long as
# proper attribution is given to the journal article from which the
# data were obtained.
#
data_2214423
loop_
_publ_author_name
'Pavlyuk, Volodymyr'
'Solokha, Pavlo'
'Dmytriv, Grygorij'
'Marciniak, Bernard'
'Paul-Boncour, Valerie'
_publ_section_title
;
 The Heusler-type alloy MgZn₂Ce
;
_journal_coeditor_code           WM2125
_journal_issue                   7
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              i161
_journal_page_last               i161
_journal_paper_doi               10.1107/S1600536807028899
_journal_volume                  63
_journal_year                    2007
_chemical_formula_iupac          'Mg Zn2 Ce'
_chemical_formula_structural     'Mg Zn2 Ce'
_chemical_formula_sum            'Ce Mg Zn2'
_chemical_formula_weight         295.17
_chemical_name_common            'Magnesium dizinc cerium'
_chemical_name_systematic
;
Magnesium dizinc cerium
;
_space_group_IT_number           225
_symmetry_cell_setting           cubic
_symmetry_space_group_name_Hall  '-F 4 2 3'
_symmetry_space_group_name_H-M   'F m -3 m'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.0358(4)
_cell_length_b                   7.0358(4)
_cell_length_c                   7.0358(4)
_cell_measurement_reflns_used    764
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      32.96
_cell_measurement_theta_min      5.02
_cell_volume                     348.29(3)
_computing_cell_refinement       'CrysAlis CCD'
_computing_data_collection       'CrysAlis CCD (Oxford Diffraction, 2004)'
_computing_data_reduction        'CrysAlis RED (Oxford Diffraction, 2005)'
_computing_molecular_graphics    'DIAMOND (Brandenburg, 1999)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      295(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Oxford Diffraction Xcalibur CCD'
_diffrn_measurement_method       ω
_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  0.0528
_diffrn_reflns_av_sigmaI/netI    0.0156
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            764
_diffrn_reflns_theta_full        32.96
_diffrn_reflns_theta_max         32.96
_diffrn_reflns_theta_min         5.02
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    26.398
_exptl_absorpt_correction_T_max  0.198
_exptl_absorpt_correction_T_min  0.11
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details   '(CrysAlis RED; Oxford Diffraction, 2005)'
_exptl_crystal_colour            'metallic dark-grey'
_exptl_crystal_density_diffrn    5.629
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       irregular
_exptl_crystal_F_000             520
_exptl_crystal_size_max          0.095
_exptl_crystal_size_mid          0.075
_exptl_crystal_size_min          0.060
_refine_diff_density_max         0.953
_refine_diff_density_min         -1.317
_refine_ls_extinction_coef       0.0038(5)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc²λ³/sin(2θ)]^-1/4^
_refine_ls_extinction_method     'SHELXL97 (Sheldrick, 1997)'
_refine_ls_goodness_of_fit_ref   1.010
_refine_ls_matrix_type           full
_refine_ls_number_parameters     5
_refine_ls_number_reflns         55
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.010
_refine_ls_R_factor_all          0.0160
_refine_ls_R_factor_gt           0.0160
_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/[σ²(Fo²)+(0.0117P)²+19.6603P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0448
_refine_ls_wR_factor_ref         0.0448
_reflns_number_gt                55
_reflns_number_total             55
_reflns_threshold_expression     I>2σ(I)
_cod_data_source_file            wm2125.cif
_cod_data_source_block           I
_cod_database_code               2214423
_cod_database_fobs_code          2214423
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x, -y, z'
'-x, y, -z'
'x, -y, -z'
'z, x, y'
'z, -x, -y'
'-z, -x, y'
'-z, x, -y'
'y, z, x'
'-y, z, -x'
'y, -z, -x'
'-y, -z, x'
'y, x, -z'
'-y, -x, -z'
'y, -x, z'
'-y, x, z'
'x, z, -y'
'-x, z, y'
'-x, -z, -y'
'x, -z, y'
'z, y, -x'
'z, -y, x'
'-z, y, x'
'-z, -y, -x'
'x, y+1/2, z+1/2'
'-x, -y+1/2, z+1/2'
'-x, y+1/2, -z+1/2'
'x, -y+1/2, -z+1/2'
'z, x+1/2, y+1/2'
'z, -x+1/2, -y+1/2'
'-z, -x+1/2, y+1/2'
'-z, x+1/2, -y+1/2'
'y, z+1/2, x+1/2'
'-y, z+1/2, -x+1/2'
'y, -z+1/2, -x+1/2'
'-y, -z+1/2, x+1/2'
'y, x+1/2, -z+1/2'
'-y, -x+1/2, -z+1/2'
'y, -x+1/2, z+1/2'
'-y, x+1/2, z+1/2'
'x, z+1/2, -y+1/2'
'-x, z+1/2, y+1/2'
'-x, -z+1/2, -y+1/2'
'x, -z+1/2, y+1/2'
'z, y+1/2, -x+1/2'
'z, -y+1/2, x+1/2'
'-z, y+1/2, x+1/2'
'-z, -y+1/2, -x+1/2'
'x+1/2, y, z+1/2'
'-x+1/2, -y, z+1/2'
'-x+1/2, y, -z+1/2'
'x+1/2, -y, -z+1/2'
'z+1/2, x, y+1/2'
'z+1/2, -x, -y+1/2'
'-z+1/2, -x, y+1/2'
'-z+1/2, x, -y+1/2'
'y+1/2, z, x+1/2'
'-y+1/2, z, -x+1/2'
'y+1/2, -z, -x+1/2'
'-y+1/2, -z, x+1/2'
'y+1/2, x, -z+1/2'
'-y+1/2, -x, -z+1/2'
'y+1/2, -x, z+1/2'
'-y+1/2, x, z+1/2'
'x+1/2, z, -y+1/2'
'-x+1/2, z, y+1/2'
'-x+1/2, -z, -y+1/2'
'x+1/2, -z, y+1/2'
'z+1/2, y, -x+1/2'
'z+1/2, -y, x+1/2'
'-z+1/2, y, x+1/2'
'-z+1/2, -y, -x+1/2'
'x+1/2, y+1/2, z'
'-x+1/2, -y+1/2, z'
'-x+1/2, y+1/2, -z'
'x+1/2, -y+1/2, -z'
'z+1/2, x+1/2, y'
'z+1/2, -x+1/2, -y'
'-z+1/2, -x+1/2, y'
'-z+1/2, x+1/2, -y'
'y+1/2, z+1/2, x'
'-y+1/2, z+1/2, -x'
'y+1/2, -z+1/2, -x'
'-y+1/2, -z+1/2, x'
'y+1/2, x+1/2, -z'
'-y+1/2, -x+1/2, -z'
'y+1/2, -x+1/2, z'
'-y+1/2, x+1/2, z'
'x+1/2, z+1/2, -y'
'-x+1/2, z+1/2, y'
'-x+1/2, -z+1/2, -y'
'x+1/2, -z+1/2, y'
'z+1/2, y+1/2, -x'
'z+1/2, -y+1/2, x'
'-z+1/2, y+1/2, x'
'-z+1/2, -y+1/2, -x'
'-x, -y, -z'
'x, y, -z'
'x, -y, z'
'-x, y, z'
'-z, -x, -y'
'-z, x, y'
'z, x, -y'
'z, -x, y'
'-y, -z, -x'
'y, -z, x'
'-y, z, x'
'y, z, -x'
'-y, -x, z'
'y, x, z'
'-y, x, -z'
'y, -x, -z'
'-x, -z, y'
'x, -z, -y'
'x, z, y'
'-x, z, -y'
'-z, -y, x'
'-z, y, -x'
'z, -y, -x'
'z, y, x'
'-x, -y+1/2, -z+1/2'
'x, y+1/2, -z+1/2'
'x, -y+1/2, z+1/2'
'-x, y+1/2, z+1/2'
'-z, -x+1/2, -y+1/2'
'-z, x+1/2, y+1/2'
'z, x+1/2, -y+1/2'
'z, -x+1/2, y+1/2'
'-y, -z+1/2, -x+1/2'
'y, -z+1/2, x+1/2'
'-y, z+1/2, x+1/2'
'y, z+1/2, -x+1/2'
'-y, -x+1/2, z+1/2'
'y, x+1/2, z+1/2'
'-y, x+1/2, -z+1/2'
'y, -x+1/2, -z+1/2'
'-x, -z+1/2, y+1/2'
'x, -z+1/2, -y+1/2'
'x, z+1/2, y+1/2'
'-x, z+1/2, -y+1/2'
'-z, -y+1/2, x+1/2'
'-z, y+1/2, -x+1/2'
'z, -y+1/2, -x+1/2'
'z, y+1/2, x+1/2'
'-x+1/2, -y, -z+1/2'
'x+1/2, y, -z+1/2'
'x+1/2, -y, z+1/2'
'-x+1/2, y, z+1/2'
'-z+1/2, -x, -y+1/2'
'-z+1/2, x, y+1/2'
'z+1/2, x, -y+1/2'
'z+1/2, -x, y+1/2'
'-y+1/2, -z, -x+1/2'
'y+1/2, -z, x+1/2'
'-y+1/2, z, x+1/2'
'y+1/2, z, -x+1/2'
'-y+1/2, -x, z+1/2'
'y+1/2, x, z+1/2'
'-y+1/2, x, -z+1/2'
'y+1/2, -x, -z+1/2'
'-x+1/2, -z, y+1/2'
'x+1/2, -z, -y+1/2'
'x+1/2, z, y+1/2'
'-x+1/2, z, -y+1/2'
'-z+1/2, -y, x+1/2'
'-z+1/2, y, -x+1/2'
'z+1/2, -y, -x+1/2'
'z+1/2, y, x+1/2'
'-x+1/2, -y+1/2, -z'
'x+1/2, y+1/2, -z'
'x+1/2, -y+1/2, z'
'-x+1/2, y+1/2, z'
'-z+1/2, -x+1/2, -y'
'-z+1/2, x+1/2, y'
'z+1/2, x+1/2, -y'
'z+1/2, -x+1/2, y'
'-y+1/2, -z+1/2, -x'
'y+1/2, -z+1/2, x'
'-y+1/2, z+1/2, x'
'y+1/2, z+1/2, -x'
'-y+1/2, -x+1/2, z'
'y+1/2, x+1/2, z'
'-y+1/2, x+1/2, -z'
'y+1/2, -x+1/2, -z'
'-x+1/2, -z+1/2, y'
'x+1/2, -z+1/2, -y'
'x+1/2, z+1/2, y'
'-x+1/2, z+1/2, -y'
'-z+1/2, -y+1/2, x'
'-z+1/2, y+1/2, -x'
'z+1/2, -y+1/2, -x'
'z+1/2, y+1/2, x'
loop_
_atom_site_type_symbol
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_calc_flag
_atom_site_refinement_flags
_atom_site_occupancy
Ce Ce 0.0000 0.0000 0.0000 0.0098(4) Uani d S 1
Zn Zn 0.2500 0.2500 0.2500 0.0153(4) Uani d S 1
Mg Mg 0.5000 0.5000 0.5000 0.0112(11) Uani d S 1
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
Mg Mg 0.0486 0.0363 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Zn Zn 0.2839 1.4301 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
Ce Ce -0.2486 2.6331 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle_site_symmetry_1
_geom_angle_site_symmetry_3
_geom_angle
Zn Ce Zn 97 . 180.0
Zn Ce Zn 97 169 109.5
Zn Ce Zn . 169 70.5
Zn Ce Zn 97 49_454 70.5
Zn Ce Zn . 49_454 109.5
Zn Ce Zn 169 49_454 70.5
Zn Ce Zn 97 73_445 70.5
Zn Ce Zn . 73_445 109.5
Zn Ce Zn 169 73_445 180.0
Zn Ce Zn 49_454 73_445 109.5
Zn Ce Zn 97 25_544 70.5
Zn Ce Zn . 25_544 109.5
Zn Ce Zn 169 25_544 70.5
Zn Ce Zn 49_454 25_544 109.5
Zn Ce Zn 73_445 25_544 109.5
Zn Ce Zn 97 121 109.5
Zn Ce Zn . 121 70.5
Zn Ce Zn 169 121 109.5
Zn Ce Zn 49_454 121 70.5
Zn Ce Zn 73_445 121 70.5
Zn Ce Zn 25_544 121 180.0
Zn Ce Zn 97 145 109.5
Zn Ce Zn . 145 70.5
Zn Ce Zn 169 145 109.5
Zn Ce Zn 49_454 145 180.0
Zn Ce Zn 73_445 145 70.5
Zn Ce Zn 25_544 145 70.5
Zn Ce Zn 121 145 109.5
Zn Ce Mg 97 73_445 125.3
Zn Ce Mg . 73_445 54.7
Zn Ce Mg 169 73_445 125.3
Zn Ce Mg 49_454 73_445 125.3
Zn Ce Mg 73_445 73_445 54.7
Zn Ce Mg 25_544 73_445 125.3
Zn Ce Mg 121 73_445 54.7
Zn Ce Mg 145 73_445 54.7
Zn Ce Mg 97 25_444 54.7
Zn Ce Mg . 25_444 125.3
Zn Ce Mg 169 25_444 125.3
Zn Ce Mg 49_454 25_444 54.7
Zn Ce Mg 73_445 25_444 54.7
Zn Ce Mg 25_544 25_444 125.3
Zn Ce Mg 121 25_444 54.7
Zn Ce Mg 145 25_444 125.3
Mg Ce Mg 73_445 25_444 90.0
Zn Ce Mg 97 25_544 125.3
Zn Ce Mg . 25_544 54.7
Zn Ce Mg 169 25_544 54.7
Zn Ce Mg 49_454 25_544 125.3
Zn Ce Mg 73_445 25_544 125.3
Zn Ce Mg 25_544 25_544 54.7
Zn Ce Mg 121 25_544 125.3
Zn Ce Mg 145 25_544 54.7
Mg Ce Mg 73_445 25_544 90.0
Mg Ce Mg 25_444 25_544 180.0
Zn Ce Mg 97 49_444 54.7
Zn Ce Mg . 49_444 125.3
Zn Ce Mg 169 49_444 125.3
Zn Ce Mg 49_454 49_444 125.3
Zn Ce Mg 73_445 49_444 54.7
Zn Ce Mg 25_544 49_444 54.7
Zn Ce Mg 121 49_444 125.3
Zn Ce Mg 145 49_444 54.7
Mg Ce Mg 73_445 49_444 90.0
Mg Ce Mg 25_444 49_444 90.0
Mg Ce Mg 25_544 49_444 90.0
Mg Zn Ce . . 180.0
Mg Zn Mg . 73_445 109.5
Ce Zn Mg . 73_445 70.5
Mg Zn Ce . 25 70.5
Ce Zn Ce . 25 109.5
Mg Zn Ce 73_445 25 70.5
Mg Zn Ce . 49 70.5
Ce Zn Ce . 49 109.5
Mg Zn Ce 73_445 49 70.5
Ce Zn Ce 25 49 109.5
Mg Zn Ce . 73 70.5
Ce Zn Ce . 73 109.5
Mg Zn Ce 73_445 73 180.0
Ce Zn Ce 25 73 109.5
Ce Zn Ce 49 73 109.5
Mg Zn Mg . 25_544 109.5
Ce Zn Mg . 25_544 70.5
Mg Zn Mg 73_445 25_544 109.5
Ce Zn Mg 25 25_544 180.0
Ce Zn Mg 49 25_544 70.5
Ce Zn Mg 73 25_544 70.5
Mg Zn Mg . 49_454 109.5
Ce Zn Mg . 49_454 70.5
Mg Zn Mg 73_445 49_454 109.5
Ce Zn Mg 25 49_454 70.5
Ce Zn Mg 49 49_454 180.0
Ce Zn Mg 73 49_454 70.5
Mg Zn Mg 25_544 49_454 109.5
Zn Mg Zn 97_666 . 180.0
Zn Mg Zn 97_666 169_556 109.5
Zn Mg Zn . 169_556 70.5
Zn Mg Zn 97_666 145_565 109.5
Zn Mg Zn . 145_565 70.5
Zn Mg Zn 169_556 145_565 109.5
Zn Mg Zn 97_666 121_655 109.5
Zn Mg Zn . 121_655 70.5
Zn Mg Zn 169_556 121_655 109.5
Zn Mg Zn 145_565 121_655 109.5
Zn Mg Zn 97_666 73 70.5
Zn Mg Zn . 73 109.5
Zn Mg Zn 169_556 73 180.0
Zn Mg Zn 145_565 73 70.5
Zn Mg Zn 121_655 73 70.5
Zn Mg Zn 97_666 49 70.5
Zn Mg Zn . 49 109.5
Zn Mg Zn 169_556 49 70.5
Zn Mg Zn 145_565 49 180.0
Zn Mg Zn 121_655 49 70.5
Zn Mg Zn 73 49 109.5
Zn Mg Zn 97_666 25 70.5
Zn Mg Zn . 25 109.5
Zn Mg Zn 169_556 25 70.5
Zn Mg Zn 145_565 25 70.5
Zn Mg Zn 121_655 25 180.0
Zn Mg Zn 73 25 109.5
Zn Mg Zn 49 25 109.5
Zn Mg Ce 97_666 25_655 54.7
Zn Mg Ce . 25_655 125.3
Zn Mg Ce 169_556 25_655 125.3
Zn Mg Ce 145_565 25_655 125.3
Zn Mg Ce 121_655 25_655 54.7
Zn Mg Ce 73 25_655 54.7
Zn Mg Ce 49 25_655 54.7
Zn Mg Ce 25 25_655 125.3
Zn Mg Ce 97_666 73_556 54.7
Zn Mg Ce . 73_556 125.3
Zn Mg Ce 169_556 73_556 54.7
Zn Mg Ce 145_565 73_556 125.3
Zn Mg Ce 121_655 73_556 125.3
Zn Mg Ce 73 73_556 125.3
Zn Mg Ce 49 73_556 54.7
Zn Mg Ce 25 73_556 54.7
Ce Mg Ce 25_655 73_556 90.0
Zn Mg Ce 97_666 73 125.3
Zn Mg Ce . 73 54.7
Zn Mg Ce 169_556 73 125.3
Zn Mg Ce 145_565 73 54.7
Zn Mg Ce 121_655 73 54.7
Zn Mg Ce 73 73 54.7
Zn Mg Ce 49 73 125.3
Zn Mg Ce 25 73 125.3
Ce Mg Ce 25_655 73 90.0
Ce Mg Ce 73_556 73 180.0
Zn Mg Ce 97_666 25 125.3
Zn Mg Ce . 25 54.7
Zn Mg Ce 169_556 25 54.7
Zn Mg Ce 145_565 25 54.7
Zn Mg Ce 121_655 25 125.3
Zn Mg Ce 73 25 125.3
Zn Mg Ce 49 25 125.3
Zn Mg Ce 25 25 54.7
Ce Mg Ce 25_655 25 180.0
Ce Mg Ce 73_556 25 90.0
Ce Mg Ce 73 25 90.0
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_site_symmetry_2
_geom_bond_distance
_geom_bond_publ_flag
Ce Zn 97 3.04659(17) ?
Ce Zn . 3.04659(17) y
Ce Zn 169 3.04659(17) ?
Ce Zn 49_454 3.04659(17) ?
Ce Zn 73_445 3.04659(17) ?
Ce Zn 25_544 3.04659(17) ?
Ce Zn 121 3.04659(17) ?
Ce Zn 145 3.04659(17) ?
Ce Mg 73_445 3.5179(2) ?
Ce Mg 25_444 3.5179(2) y
Ce Mg 25_544 3.5179(2) ?
Ce Mg 49_444 3.5179(2) ?
Zn Mg . 3.04659(17) y
Zn Mg 73_445 3.04659(17) ?
Zn Ce 25 3.04659(17) ?
Zn Ce 49 3.04659(17) ?
Zn Ce 73 3.04659(17) ?
Zn Mg 25_544 3.04659(17) ?
Zn Mg 49_454 3.04659(17) ?
Mg Zn 97_666 3.04659(17) ?
Mg Zn 169_556 3.04659(17) ?
Mg Zn 145_565 3.04659(17) ?
Mg Zn 121_655 3.04659(17) ?
Mg Zn 73 3.04659(17) ?
Mg Zn 49 3.04659(17) ?
Mg Zn 25 3.04659(17) ?
Mg Ce 25_655 3.5179(2) ?
Mg Ce 73_556 3.5179(2) ?
Mg Ce 73 3.5179(2) ?
Mg Ce 25 3.5179(2) ?
