Structural and Magnetic Characteristics of Gd5GaxSi4-x
Hui Wang; Sumohan Misra; Fei Wang; Gordon J. Miller; Inorganic Chemistry 49 (2010) 4586–4593; doi:10.1021/ic100142u

data_4315500
_publ_section_title
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 Structural and Magnetic Characteristics of Gd5GaxSi4-x
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_journal_name_full               'Inorganic Chemistry'
_journal_page_first              4586
_journal_page_last               4593
_journal_paper_doi               10.1021/ic100142u
_journal_volume                  49
_journal_year                    2010
_chemical_formula_sum            'Ga0.81 Gd5 Si3.18'
_chemical_formula_weight         932.54
_chemical_melting_point          ?
_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_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                   7.4808(11)
_cell_length_b                   14.863(2)
_cell_length_c                   7.8250(12)
_cell_measurement_reflns_used    7039
_cell_measurement_temperature    273(2)
_cell_measurement_theta_max      28.25
_cell_measurement_theta_min      2.74
_cell_volume                     870.0(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      273(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.964
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0657
_diffrn_reflns_av_sigmaI/netI    0.0456
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            7039
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         28.25
_diffrn_reflns_theta_min         2.74
_exptl_absorpt_coefficient_mu    40.396
_exptl_absorpt_correction_T_max  0.17479
_exptl_absorpt_correction_T_min  0.1272
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   '(SADABS; SHELDRICK, 2003)'
_exptl_crystal_colour            metallic
_exptl_crystal_density_diffrn    7.119
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1559
_exptl_crystal_size_max          0.051
_exptl_crystal_size_mid          0.048
_exptl_crystal_size_min          0.0430
_refine_diff_density_max         2.044
_refine_diff_density_min         -1.749
_refine_diff_density_rms         0.448
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.040
_refine_ls_matrix_type           full
_refine_ls_number_parameters     49
_refine_ls_number_reflns         1079
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.0487
_refine_ls_R_factor_gt           0.0306
_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^)+(0.0205P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0537
_refine_ls_wR_factor_ref         0.0590
_reflns_number_gt                848
_reflns_number_total             1079
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic100142u_si_001_2.cif
_cod_data_source_block           Gd5Ga0.81Si3.18
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
according to '/home/adriana/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_enum 1555 2011-01-17 13:19:09Z saulius 

The following automatic conversions were performed:

'_chemical_melting_point' value 'not measured' was changed to '?' -
the value is undefined or not given.

Automatic conversion script
Id: cif_fix_values 1569 2011-02-09 13:29:24Z adriana 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
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_cod_database_code               4315500