Two types of novel tetra-iron substituted sandwich-type arsenotungastates with supporting lanthanide pendants.
Chen, Lijuan; Zhang, Fang; Ma, Xing; Luo, Jie; Zhao, Junwei; Dalton transactions (Cambridge, England : 2003) 44 (2015) 12598–12612; doi:10.1039/c5dt00696a

data_1520091
_publ_section_title
;
 Two types of novel tetra-iron substituted sandwich-type arsenotungastates
 with supporting lanthanide pendants.
;
_journal_issue                   28
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              12598
_journal_page_last               12612
_journal_paper_doi               10.1039/c5dt00696a
_journal_volume                  44
_journal_year                    2015
_chemical_formula_sum            'C8 H106 As2 Fe4 La2 N2 O116 W18'
_chemical_formula_weight         6047.31
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2015-05-18 deposited with the CCDC.
2015-05-27 downloaded from the CCDC.
;
_cell_angle_alpha                107.303(2)
_cell_angle_beta                 99.720(2)
_cell_angle_gamma                96.736(2)
_cell_formula_units_Z            1
_cell_length_a                   12.6669(13)
_cell_length_b                   13.5788(13)
_cell_length_c                   16.3488(17)
_cell_measurement_reflns_used    8975
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      25.00
_cell_measurement_theta_min      1.72
_cell_volume                     2604.0(5)
_computing_cell_refinement       'Bruker XSCANS'
_computing_data_collection       'Bruker XSCANS'
_computing_data_reduction        'Bruker SHELXTL'
_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      296(2)
_diffrn_detector_area_resol_mean none
_diffrn_measured_fraction_theta_full 0.979
_diffrn_measured_fraction_theta_max 0.979
_diffrn_measurement_device_type  'Bruker P4'
_diffrn_measurement_method       '\w 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  0.0413
_diffrn_reflns_av_sigmaI/netI    0.0734
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            13131
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.72
_diffrn_standards_decay_%        none
_diffrn_standards_interval_count none
_diffrn_standards_interval_time  none
_diffrn_standards_number         none
_exptl_absorpt_coefficient_mu    21.889
_exptl_absorpt_correction_T_max  0.1275
_exptl_absorpt_correction_T_min  0.0338
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            'Light yellow'
_exptl_crystal_density_diffrn    3.856
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       flaky
_exptl_crystal_F_000             2712
_exptl_crystal_size_max          0.48
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.16
_refine_diff_density_max         2.138
_refine_diff_density_min         -3.669
_refine_diff_density_rms         0.395
_refine_ls_extinction_coef       0.00013(3)
_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   1.005
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     656
_refine_ls_number_reflns         8975
_refine_ls_number_restraints     24
_refine_ls_restrained_S_all      1.004
_refine_ls_R_factor_all          0.0563
_refine_ls_R_factor_gt           0.0483
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0458P)^2^+90.6685P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1196
_refine_ls_wR_factor_ref         0.1238
_reflns_number_gt                7806
_reflns_number_total             8975
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5dt00696a3.cif
_cod_data_source_block           5-La
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/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 3271 2015-04-21 07:52:19Z andrius 

 Adding full bibliography for 1520091--1520099.cif.
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               1520091