Crystal structure of crystal structure of 4,5,9,10-tetrathiocino[1,2-b;5,6-b']diimidazolyl -1,3,6,8-tetramethyl-2,7-dione, C10H12N4O2S4
Agnes Bittermann; Klaus Wurst; Benno Bildstein; Zeitschrift für Kristallographie - New Crystal Structures 223 (2008) 233–; doi:

data_8102269
_publ_section_title
;
 Crystal structure of crystal structure of
 4,5,9,10-tetrathiocino[1,2-b;5,6-b']diimidazolyl
 -1,3,6,8-tetramethyl-2,7-dione, C10H12N4O2S4
;
_journal_issue                   3
_journal_name_full
'Zeitschrift f\"ur Kristallographie - New Crystal Structures'
_journal_page_first              233
_journal_volume                  223
_journal_year                    2008
_chemical_formula_sum            'C10 H12 N4 O2 S4'
_chemical_formula_weight         348.48
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 93.119(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.0719(6)
_cell_length_b                   11.4131(4)
_cell_length_c                   8.3310(3)
_cell_measurement_reflns_used    7223
_cell_measurement_temperature    233(2)
_cell_measurement_theta_max      25.0
_cell_measurement_theta_min      1.00
_cell_volume                     1430.95(9)
_computing_cell_refinement       'SCALEPACK (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 1998)'
_computing_data_reduction
;
 DENZO (Otwinowski & Minor, 1997) and SCALEPACK 
;
_computing_molecular_graphics    'SHELXTL (Sheldrick, 1997) [4]'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997) [3]'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997) [2]'
_diffrn_ambient_temperature      233(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       'phi- and omega-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  0.0279
_diffrn_reflns_av_sigmaI/netI    0.0308
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            7470
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.35
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.669
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.618
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             720
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.227
_refine_diff_density_min         -0.227
_refine_diff_density_rms         0.048
_refine_ls_extinction_coef       0.0046(11)
_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   1.050
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     186
_refine_ls_number_reflns         2497
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.050
_refine_ls_R_factor_all          0.0436
_refine_ls_R_factor_gt           0.0329
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0408P)^2^+0.6359P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0815
_refine_ls_wR_factor_ref         0.0860
_reflns_number_gt                2056
_reflns_number_total             2497
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            1267-2238.cff
_cod_data_source_block           bit2
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               8102269