The homometallic polyoxotungstate archetype {P<sub>4</sub>W<sub>24</sub>}.
Yi, Xiaofeng; Izarova, Natalya V.; Kögerler, Paul; Chemical communications (Cambridge, England) 54 (2018) 2216–2219; doi:10.1039/c7cc09175c

data_7121059
_publ_section_title
;
 The homometallic polyoxotungstate archetype
 {P<sub>4</sub>W<sub>24</sub>}.
;
_journal_issue                   18
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              2216
_journal_page_last               2219
_journal_paper_doi               10.1039/c7cc09175c
_journal_volume                  54
_journal_year                    2018
_chemical_formula_sum            'C21 H126 As2 K3.5 Li8 N4.5 O134 P4 W24'
_chemical_formula_weight         7464.75
_space_group_IT_number           5
_space_group_name_Hall           'C 2y'
_space_group_name_H-M_alt        'C 1 2 1'
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C 2y'
_symmetry_space_group_name_H-M   'C 1 2 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2017-11-21 deposited with the CCDC.
2018-01-02 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 140.272(13)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   26.5613(17)
_cell_length_b                   28.3926(4)
_cell_length_c                   14.2563(9)
_cell_measurement_reflns_used    13155
_cell_measurement_temperature    120.0(1)
_cell_measurement_theta_max      28.4960
_cell_measurement_theta_min      3.1860
_cell_volume                     6872(2)
_computing_cell_refinement       'CrysAlisPro 1.171.38.43b (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.43b (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.43b (Rigaku OD, 2015)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      120.0(1)
_diffrn_detector_area_resol_mean 20.9246
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_source         'micro-focus sealed X-ray tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0575
_diffrn_reflns_av_sigmaI/netI    0.0727
_diffrn_reflns_limit_h_max       32
_diffrn_reflns_limit_h_min       -32
_diffrn_reflns_limit_k_max       35
_diffrn_reflns_limit_k_min       -35
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            34786
_diffrn_reflns_theta_full        26.02
_diffrn_reflns_theta_max         26.02
_diffrn_reflns_theta_min         4.18
_exptl_absorpt_coefficient_mu    20.750
_exptl_absorpt_correction_T_max  0.1813
_exptl_absorpt_correction_T_min  0.0280
_exptl_absorpt_correction_type   gaussian
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.43b (Rigaku Oxford Diffraction, 2015)
Numerical absorption correction based on gaussian integration over
            a multifaceted crystal model
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    3.608
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             6696
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.12
_refine_diff_density_max         1.524
_refine_diff_density_min         -1.233
_refine_diff_density_rms         0.280
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.859(17)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.023
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     470
_refine_ls_number_reflns         13220
_refine_ls_number_restraints     19
_refine_ls_restrained_S_all      1.022
_refine_ls_R_factor_all          0.0655
_refine_ls_R_factor_gt           0.0483
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0602P)^2^+98.9935P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1132
_refine_ls_wR_factor_ref         0.1268
_reflns_number_gt                10996
_reflns_number_total             13220
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c7cc09175c2.cif
_cod_data_source_block           KLD-2
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/home/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 4973 2017-02-22 13:04:09Z antanas 

 Adding full bibliography for 7121057--7121059.cif.
;
_cod_original_cell_volume        6871.6(6)
_cod_original_sg_symbol_H-M      C2
_cod_original_formula_sum        'C21 H126 As2 K3.50 Li8 N4.50 O134 P4 W24'
_cod_database_code               7121059