1,4-Diamino-1,4-di-2-quinolyl-2,3-diaza-1,3-butadiene
Ren-Hui, Xu; Jun, Zhou; Yan, Xu; Li, Qi; Dun-Ru, Zhu; Acta Crystallographica Section E 62 (2006) o5234–o5235; doi:10.1107/S1600536806042966

data_2211173
_publ_section_title
;
 1,4-Diamino-1,4-di-2-quinolyl-2,3-diaza-1,3-butadiene
;
_journal_coeditor_code           RZ2079
_journal_issue                   11
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o5234
_journal_page_last               o5235
_journal_paper_doi               10.1107/S1600536806042966
_journal_volume                  62
_journal_year                    2006
_chemical_formula_iupac          'C20 H16 N6'
_chemical_formula_moiety         'C20 H16 N6'
_chemical_formula_sum            'C20 H16 N6'
_chemical_formula_weight         340.39
_chemical_name_systematic
;
1,4-Diamino-1,4-di-2-quinolyl-2,3-diaza-1,3-butadiene
;
_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           SHELXL97
_cell_angle_alpha                90.00
_cell_angle_beta                 93.041(13)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   17.275(11)
_cell_length_b                   5.925(4)
_cell_length_c                   8.052(5)
_cell_measurement_reflns_used    4146
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.27
_cell_measurement_theta_min      2.36
_cell_volume                     823.0(9)
_computing_cell_refinement       'SAINT (Bruker, 2005)'
_computing_data_collection       'APEX2 (Bruker, 2005)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'SHELXTL (Sheldrick, 1997b)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997a)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997a)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Bruker APEX2 CCD area-detector'
_diffrn_measurement_method       \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  0.0547
_diffrn_reflns_av_sigmaI/netI    0.0688
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            4146
_diffrn_reflns_theta_full        25.27
_diffrn_reflns_theta_max         25.27
_diffrn_reflns_theta_min         2.36
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.087
_exptl_absorpt_correction_T_max  0.9931
_exptl_absorpt_correction_T_min  0.9896
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 2003)'
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.374
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             356
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.459
_refine_diff_density_min         -0.425
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.061
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     118
_refine_ls_number_reflns         1471
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.139
_refine_ls_R_factor_all          0.1168
_refine_ls_R_factor_gt           0.0665
_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^)+(0.0862P)^2^+0.2403P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1735
_refine_ls_wR_factor_ref         0.2027
_reflns_number_gt                838
_reflns_number_total             1471
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            rz2079.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/c'
_cod_database_code               2211173