Sodium–rare earth carbonates with shorite structure and large second harmonic generation response
Luo, Min; Lin, Chensheng; Zou, Guohong; Ye, Ning; Cheng, Wendan; CrystEngComm 16 (2014) 4414–; doi:10.1039/c4ce00183d

data_7216450
_publ_section_title
;
 Sodium--rare earth carbonates with shorite structure and large second
 harmonic generation response
;
_journal_issue                   21
_journal_name_full               CrystEngComm
_journal_page_first              4414
_journal_paper_doi               10.1039/c4ce00183d
_journal_volume                  16
_journal_year                    2014
_chemical_formula_moiety         'C3 Gd Na3 O9'
_chemical_formula_sum            'C3 Gd Na3 O9'
_chemical_formula_weight         406.25
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           40
_space_group_name_Hall           'A 2 -2a'
_space_group_name_H-M_alt        'A m a 2'
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'A 2 -2a'
_symmetry_space_group_name_H-M   'A m a 2'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2012-12-17 # Formatted by publCIF
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.926(3)
_cell_length_b                   10.992(4)
_cell_length_c                   7.120(2)
_cell_measurement_reflns_used    835
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.5089
_cell_measurement_theta_min      3.2233
_cell_volume                     776.8(4)
_computing_cell_refinement       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_reduction        'CrystalClear (Rigaku Inc., 2008)'
_computing_molecular_graphics    'SHELXL-97 (Sheldrick, 1997)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 14.6306
_diffrn_measured_fraction_theta_full 0.959
_diffrn_measured_fraction_theta_max 0.959
_diffrn_measurement_device
;
Mercury70 (2x2 bin mode)
;
_diffrn_measurement_method       CCD_Profile_fitting
_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  0.0239
_diffrn_reflns_av_sigmaI/netI    0.0294
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            2686
_diffrn_reflns_theta_full        27.45
_diffrn_reflns_theta_max         27.45
_diffrn_reflns_theta_min         3.41
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count none
_diffrn_standards_interval_time  none
_exptl_absorpt_coefficient_mu    8.741
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.7944
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            White
_exptl_crystal_density_diffrn    3.474
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             748
_exptl_crystal_size_max          0.1500
_exptl_crystal_size_mid          0.1000
_exptl_crystal_size_min          0.0600
_refine_diff_density_max         1.127
_refine_diff_density_min         -0.711
_refine_diff_density_rms         0.143
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.06(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.152
_refine_ls_matrix_type           full
_refine_ls_number_parameters     81
_refine_ls_number_reflns         873
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.151
_refine_ls_R_factor_all          0.0167
_refine_ls_R_factor_gt           0.0162
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0218P)^2^+0.3427P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0435
_refine_ls_wR_factor_ref         0.0437
_reflns_number_gt                854
_reflns_number_total             873
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ce00183d2.cif
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' according to
/usr/data/users/saulius/crontab/automatic-downloads/current/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_sg_symbol_Hall     'A 2 -2a '
_cod_original_sg_symbol_H-M      Ama2
_cod_database_code               7216450