20-Dicyanomethylene-5,8,11,14-tetraoxa-2,17-dithiabicyclo[16.4.1]tricosa-1(23),18,21-triene and its mercury(II) dichloride complex
Kubo, Kanji; Kato, Nobuo; Mori, Akira; Takeshita, Hitoshi; Acta Crystallographica Section C 56 (2000) 644–646; doi:10.1107/S010827010000305X

data_2011010
_publ_section_title
;20-Dicyanomethylene-5,8,11,14-tetraoxa-2,17-dithiabicyclo[16.4.1]tricosa-1(23),18,21-triene
 and its mercury(II) dichloride complex
;
_journal_issue                   6
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              644
_journal_page_last               646
_journal_paper_doi               10.1107/S010827010000305X
_journal_volume                  56
_journal_year                    2000
_chemical_formula_moiety         'C20 H24 N2 O4 S2'
_chemical_formula_sum            'C20 H24 N2 O4 S2'
_chemical_formula_weight         420.53
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_audit_creation_method           SHELXL-97
_cell_angle_alpha                103.808(5)
_cell_angle_beta                 113.331(5)
_cell_angle_gamma                76.135(5)
_cell_formula_units_Z            2
_cell_length_a                   10.947(5)
_cell_length_b                   12.185(5)
_cell_length_c                   8.883(5)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      42.78
_cell_measurement_theta_min      19.15
_cell_volume                     1042.5(9)
_computing_cell_refinement       ' CAD-4 Software'
_computing_data_collection       ' CAD-4 Software (Enraf-Nonius, 1989)'
_computing_data_reduction        ' MolEN (Fair, 1990)'
_computing_molecular_graphics    'Xtal_GX (Hall & du Boulay, 1995)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    ' SIR97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full .000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Enraf-Nonius FR590'
_diffrn_measurement_method       \w--2\q
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  .0135
_diffrn_reflns_av_sigmaI/netI    .0152
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       0
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            4032
_diffrn_reflns_theta_full        .50
_diffrn_reflns_theta_max         64.91
_diffrn_reflns_theta_min         3.79
_diffrn_standards_decay_%        .0
_diffrn_standards_interval_time  120
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    2.555
_exptl_absorpt_correction_T_max  .775
_exptl_absorpt_correction_T_min  .473
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   ' via \y scans (North et al., 1968)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.340
_exptl_crystal_density_meas      ?
_exptl_crystal_description       prism
_exptl_crystal_F_000             444
_exptl_crystal_size_max          .50
_exptl_crystal_size_mid          .30
_exptl_crystal_size_min          .10
_refine_diff_density_max         .318
_refine_diff_density_min         -.204
_refine_ls_extinction_coef       .0120(8)
_refine_ls_extinction_method     'SHELXL97 (Sheldrick, 1997)'
_refine_ls_goodness_of_fit_ref   1.101
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     254
_refine_ls_number_reflns         3550
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.101
_refine_ls_R_factor_all          .0394
_refine_ls_R_factor_gt           .0358
_refine_ls_shift/su_max          .001
_refine_ls_shift/su_mean         .000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w = 1/[\s^2^(Fo^2^)+(0.0512P)^2^+0.3471P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         .1037
_reflns_number_gt                3249
_reflns_number_total             3550
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ja1020.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_database_code               2011010
_cod_database_fobs_code          2011010