4,4'-Bis(2,6-dichlorobenzylideneamino)biphenyl
Hou, Zhen-Yu; Zhu, Dong-Mei; Ng, Seik Weng; Acta Crystallographica Section E 62 (2006) o1901–o1902; doi:10.1107/S1600536806013092

data_2208944
_publ_section_title
;
 4,4'-Bis(2,6-dichlorobenzylideneamino)biphenyl
;
_journal_coeditor_code           LH2038
_journal_issue                   5
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1901
_journal_page_last               o1902
_journal_paper_doi               10.1107/S1600536806013092
_journal_volume                  62
_journal_year                    2006
_chemical_formula_iupac          'C26 H16 Cl4 N2'
_chemical_formula_moiety         'C26 H16 Cl4 N2'
_chemical_formula_sum            'C26 H16 Cl4 N2'
_chemical_formula_weight         498.21
_chemical_name_systematic
;
4,4'-Bis(2,6-dichlorobenzylideneamino)biphenyl
;
_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                 93.2300(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   4.7801(3)
_cell_length_b                   10.9874(6)
_cell_length_c                   21.7780(10)
_cell_measurement_reflns_used    5455
_cell_measurement_temperature    291(2)
_cell_measurement_theta_max      25.6
_cell_measurement_theta_min      2.5
_cell_volume                     1141.98(11)
_computing_cell_refinement       'SAINT (Bruker, 2004)'
_computing_data_collection       'SMART (Bruker, 2004)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'SHELXTL (Bruker, 1998)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      291(2)
_diffrn_measured_fraction_theta_full 1.00
_diffrn_measured_fraction_theta_max 1.00
_diffrn_measurement_device_type  'Bruker APEX area-detector'
_diffrn_measurement_method       '\f and \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  0.0172
_diffrn_reflns_av_sigmaI/netI    0.0145
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            9739
_diffrn_reflns_theta_full        27.5
_diffrn_reflns_theta_max         27.5
_diffrn_reflns_theta_min         2.6
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.536
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.449
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             508
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.32
_refine_diff_density_min         -0.30
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.06
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     229
_refine_ls_number_reflns         2623
_refine_ls_number_restraints     98
_refine_ls_restrained_S_all      1.12
_refine_ls_R_factor_all          0.069
_refine_ls_R_factor_gt           0.052
_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^)+(0.0751P)^2^+0.4894P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.151
_refine_ls_wR_factor_ref         0.167
_reflns_number_gt                1932
_reflns_number_total             2623
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            lh2038.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_cell_volume        1142.00(10)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2208944
_cod_database_fobs_code          2208944