The geometry and structural properties of the 4,8,12-trioxa-4,8,12,12c-tetrahydrodibenzo[cd,mn]pyrene system in the cationic state. Structures of a planar organic cation with various monovalent and divalent anions
Krebs, Frederik C.; Laursen, Bo W.; Johannsen, Ib; Faldt, André; Bechgaard, Klaus; Jacobsen, Claus S.; Thorup, Niels; Boubekeur, Kamal; Acta Crystallographica, Section B: Structural Science 55 (1999) 410–423; doi:10.1107/S0108768198016140

data_2003084
_publ_section_title
;
 The geometry and structural properties of the
 4,8,12-trioxa-4,8,12,12c-tetrahydrodibenzo[cd,mn]pyrene system
 in the cationic state. Structures of a planar organic cation with
 various monovalent and divalent anions
;
_journal_coden_ASTM              ASBSDK
_journal_issue                   3
_journal_name_full
;
 Acta Crystallographica, Section B: Structural Science
;
_journal_page_first              410
_journal_page_last               423
_journal_paper_doi               10.1107/S0108768198016140
_journal_volume                  55
_journal_year                    1999
_chemical_formula_moiety         '2(C19 H9 O3), Cl14 Mo6'
_chemical_formula_sum            'C38 H18 Cl14 Mo6 O6'
_chemical_formula_weight         1642.46
_chemical_name_systematic
;
 Bis(4,8,12-trioxa-4,8,12,12c-tetrahydro-dibenzo[cd,mn]pyrenium)
tetradecachlorohexamolybdate
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 97.93(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   18.205(4)
_cell_length_b                   13.540(3)
_cell_length_c                   18.679(4)
_cell_measurement_temperature    120(2)
_cell_volume                     4560.3(18)
_computing_cell_refinement       'SAINT Siemens'
_computing_data_collection       'SMART Siemens'
_computing_data_reduction        'SAINT Siemens'
_computing_molecular_graphics    'SHELXTL (Sheldrick)'
_computing_publication_material  'XCIF (Sheldrick)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.478
_diffrn_measured_fraction_theta_max 0.478
_diffrn_measurement_device_type  'Siemens SMART CCD'
_diffrn_measurement_method       'omega scan, frame data integration'
_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  0.0297
_diffrn_reflns_av_sigmaI/netI    0.0207
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            23431
_diffrn_reflns_theta_full        26.32
_diffrn_reflns_theta_max         26.32
_diffrn_reflns_theta_min         1.88
_exptl_absorpt_coefficient_mu    2.468
_exptl_absorpt_correction_T_max  0.862
_exptl_absorpt_correction_T_min  0.776
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    2.392
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             3136
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.379
_refine_diff_density_min         -1.210
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.094
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     289
_refine_ls_number_reflns         4631
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.094
_refine_ls_R_factor_all          0.0288
_refine_ls_R_factor_gt           0.0221
_refine_ls_shift/su_max          0.010
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0310P)^2^+4.5834P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.0563
_reflns_number_gt                4029
_reflns_number_total             4631
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            os0007.cif
_cod_data_source_block           9
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0310P)^2^+4.5834P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.0310P)^2^+4.5834P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 

2019-10-23
Z value and formula fixed to values more according to usual
chemical conventions.                 miguel
;
_cod_original_formula_sum            'C19 H9 Cl7 Mo3 O3'
_cod_original_formula_weight         821.23
_cod_original_formula_moiety         'C19 H9 O3,Cl7 Mo3'
_cod_original_formula_units_Z            8
_cod_original_cell_volume        4560.3(16)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               2003084