3,6-Di-2-pyridylpyrrolo[3,4-<i>c</i>]pyrrole-1,4(2<i>H</i>,5<i>H</i>)-dione
Imoda, Tomohiko; Hirota, Tsuyoshi; Takahashi, Hiroo; Mizuguchi, Jin; Acta Crystallographica Section E 61 (2005) o616–o618; doi:10.1107/S1600536805002126

data_2205301
_publ_section_title
;
 3,6-Di-2-pyridylpyrrolo[3,4-<i>c</i>]pyrrole-1,4(2<i>H</i>,5<i>H</i>)-dione
;
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o616
_journal_page_last               o618
_journal_paper_doi               10.1107/S1600536805002126
_journal_volume                  61
_journal_year                    2005
_chemical_formula_iupac          'C16 H10 N4 O2'
_chemical_formula_moiety         'C16 H10 N4 O2'
_chemical_formula_sum            'C16 H10 N4 O2'
_chemical_formula_weight         290.28
_space_group_IT_number           13
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ya'
_symmetry_space_group_name_H-M   'P 1 2/a 1'
_cell_angle_alpha                90
_cell_angle_beta                 110.758(7)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   16.097(2)
_cell_length_b                   3.7144(5)
_cell_length_c                   21.725(2)
_cell_measurement_reflns_used    9840
_cell_measurement_temperature    93.2
_cell_measurement_theta_max      68.4
_cell_measurement_theta_min      2.9
_cell_volume                     1214.6(3)
_computing_cell_refinement       PROCESS-AUTO
_computing_data_collection       'PROCESS-AUTO (Rigaku, 1998)'
_computing_data_reduction
;
TEXSAN (Molecular Structure Corporation, 2001)
;
_computing_molecular_graphics    'ORTEPIII (Burnett & Johnson, 1996)'
_computing_publication_material  TEXSAN
_computing_structure_refinement  TEXSAN
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_detector_area_resol_mean 10.00
_diffrn_measured_fraction_theta_full 0.9050
_diffrn_measured_fraction_theta_max 0.9050
_diffrn_measurement_device_type  'Rigaku R-AXIS RAPID Imaging Plate'
_diffrn_measurement_method       '48 frames, \d \w = 15\%'
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.5418
_diffrn_reflns_av_R_equivalents  0.079
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       3
_diffrn_reflns_limit_k_min       -3
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            9996
_diffrn_reflns_theta_full        68.25
_diffrn_reflns_theta_max         68.25
_exptl_absorpt_coefficient_mu    0.904
_exptl_absorpt_correction_T_max  0.835
_exptl_absorpt_correction_T_min  0.292
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(Higashi, 1995)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.587
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             600.0
_exptl_crystal_size_max          0.600
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.200
_refine_diff_density_max         0.68
_refine_diff_density_min         -0.47
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.905
_refine_ls_hydrogen_treatment    noref
_refine_ls_number_parameters     199
_refine_ls_number_reflns         2028
_refine_ls_R_factor_gt           0.0913
_refine_ls_shift/su_max          0.0123
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^) + {0.149[Max(Fo^2^,0) + 2Fc^2^]/3}^2^]'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.3457
_reflns_number_gt                1647
_reflns_number_total             2028
_reflns_threshold_expression     F^2^>2\s(F^2^)
_cod_data_source_file            lh6350.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 2/a'
_cod_database_code               2205301
_cod_database_fobs_code          2205301