Azines possessing strong push?pull donors/acceptorsElectronic supplementary information (ESI) available: characterisation data, CIF files, atomic coordinates, bond length correlations, and details of the SHG studies. See http://www.rsc.org/suppdata/cc/b4/b404129a/
Choytun, Dharinee D.; Langlois, Lisa D.; Johansson, Thomas P.; Macdonald, Charles L. B.; Leach, Gary W.; Weinberg, Noham; Clyburne, Jason A. C.; Chemical Communications  (2004) 1842–1843; doi:10.1039/b404129a

data_7110287
_publ_section_title
;
 Azines possessing strong push?pull donors/acceptorsElectronic
 supplementary information (ESI) available: characterisation data, CIF
 files, atomic coordinates, bond length correlations, and details of the
 SHG studies. See http://www.rsc.org/suppdata/cc/b4/b404129a/
;
_journal_issue                   16
_journal_name_full               'Chemical Communications'
_journal_page_first              1842
_journal_page_last               1843
_journal_paper_doi               10.1039/b404129a
_journal_year                    2004
_chemical_formula_sum            'C34 H30 Br2 N4'
_chemical_formula_weight         654.44
_chemical_name_systematic
;
?
;
_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                 113.242(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.1477(7)
_cell_length_b                   20.9731(13)
_cell_length_c                   14.0060(8)
_cell_measurement_temperature    173(2)
_cell_volume                     3008.9(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.1293
_diffrn_reflns_av_sigmaI/netI    0.1361
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            28975
_diffrn_reflns_theta_full        27.53
_diffrn_reflns_theta_max         27.53
_diffrn_reflns_theta_min         1.86
_exptl_absorpt_coefficient_mu    2.724
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.445
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1328
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.1
_refine_diff_density_max         2.164
_refine_diff_density_min         -0.784
_refine_diff_density_rms         0.123
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.039
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     361
_refine_ls_number_reflns         6935
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.039
_refine_ls_R_factor_all          0.1996
_refine_ls_R_factor_gt           0.0845
_refine_ls_shift/su_max          0.028
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1859
_refine_ls_wR_factor_ref         0.2282
_reflns_number_gt                2909
_reflns_number_total             6935
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b404129asup1.cif
_cod_data_source_block           p1b
_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 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7110287