Tetrakis(1-<i>n</i>-hexylpyridinium) octamolybdate
Guo, Ming-Lin; Guo, Chen-Hu; Li, Hui-Zhen; Chang, Hong; Acta Crystallographica Section E 63 (2007) m1471–m1471; doi:10.1107/S1600536807019423

data_2213503
_publ_section_title
;
 Tetrakis(1-<i>n</i>-hexylpyridinium) octamolybdate
;
_journal_coeditor_code           PK2017
_journal_issue                   5
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              m1471
_journal_page_last               m1471
_journal_paper_doi               10.1107/S1600536807019423
_journal_volume                  63
_journal_year                    2007
_chemical_formula_iupac          '(C11 H18 N)4 [Mo8 O26]'
_chemical_formula_moiety         '4(C11 H18 N +), Mo8 O26 4-'
_chemical_formula_sum            'C44 H72 Mo8 N4 O26'
_chemical_formula_weight         1840.58
_chemical_name_systematic
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Tetrakis(1-n-hexylpyridinium) octamolybdate
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 94.964(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   15.474(4)
_cell_length_b                   12.051(3)
_cell_length_c                   16.592(4)
_cell_measurement_reflns_used    2002
_cell_measurement_temperature    294(2)
_cell_measurement_theta_max      21.57
_cell_measurement_theta_min      2.42
_cell_volume                     3082.4(13)
_computing_cell_refinement       'SAINT (Bruker 1997)'
_computing_data_collection       'SMART (Bruker 1997)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  SHELXTL
_computing_structure_solution    'SHELXTL (Bruker, 2001)'
_diffrn_ambient_temperature      294(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker SMART CCD area-detector'
_diffrn_measurement_method       '\f and \w'
_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  0.0824
_diffrn_reflns_av_sigmaI/netI    0.0992
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            15694
_diffrn_reflns_theta_full        25.03
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         1.73
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.653
_exptl_absorpt_correction_T_max  0.765
_exptl_absorpt_correction_T_min  0.698
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.983
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             1816
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.631
_refine_diff_density_min         -0.620
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.953
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     370
_refine_ls_number_reflns         5450
_refine_ls_number_restraints     78
_refine_ls_restrained_S_all      0.955
_refine_ls_R_factor_all          0.119
_refine_ls_R_factor_gt           0.044
_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^)+(0.0421P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.086
_refine_ls_wR_factor_ref         0.114
_reflns_number_gt                2782
_reflns_number_total             5450
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            pk2017.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/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 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/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_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2213503
_cod_database_fobs_code          2213503