(<i>E</i>,<i>E</i>)-6,6'-Dimethoxy-2,2'-[<i>o</i>-phenylenebis(nitrilomethylidyne)]diphenol
Wang, Yong; Li, Hong-Gang; Yin, Handong; Wei, Guo-Dong; Wang, Xiao; Acta Crystallographica Section E 65 (2009) o754–; doi:10.1107/S1600536809008757

data_2221271
_publ_section_title
(<i>E</i>,<i>E</i>)-6,6'-Dimethoxy-2,2'-[<i>o</i>-phenylenebis(nitrilomethylidyne)]diphenol
_journal_coeditor_code           BI2352
_journal_issue                   4
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o754
_journal_paper_doi               10.1107/S1600536809008757
_journal_volume                  65
_journal_year                    2009
_chemical_formula_iupac          'C22 H20 N2 O4'
_chemical_formula_moiety         'C22 H20 N2 O4'
_chemical_formula_sum            'C22 H20 N2 O4'
_chemical_formula_weight         376.40
_chemical_name_systematic
;
(<i>E</i>,<i>E</i>)-6,6'-Dimethoxy-2,2'-[<i>o</i>-
phenylenebis(nitrilomethylidyne)]diphenol
;
_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                 97.926(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.5863(8)
_cell_length_b                   16.726(2)
_cell_length_c                   17.023(3)
_cell_measurement_reflns_used    802
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      25.271
_cell_measurement_theta_min      2.416
_cell_volume                     1857.4(5)
_computing_cell_refinement       'SAINT (Siemens, 1996)'
_computing_data_collection       'SMART (Siemens, 1996)'
_computing_data_reduction        'SAINT (Siemens, 1996)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Siemens SMART CCD'
_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  0.0976
_diffrn_reflns_av_sigmaI/netI    0.1200
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            9269
_diffrn_reflns_theta_full        25.01
_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         1.72
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.094
_exptl_absorpt_correction_T_max  0.9916
_exptl_absorpt_correction_T_min  0.9698
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.346
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             792
_exptl_crystal_size_max          0.33
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.149
_refine_diff_density_min         -0.161
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.819
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     257
_refine_ls_number_reflns         3263
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.819
_refine_ls_R_factor_all          0.1612
_refine_ls_R_factor_gt           0.0503
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0396P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0946
_refine_ls_wR_factor_ref         0.1279
_reflns_number_gt                1217
_reflns_number_total             3263
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            bi2352.cif
_cod_data_source_block           I
_cod_original_cell_volume        1857.3(4)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2221271
_cod_database_fobs_code          2221271