6,6'-Dimethoxy-2,2'-(ethane-1,2-diyldiiminodimethylene)diphenol
Xia, Hai-Tao; Liu, Yun-Fen; Yang, Shu-Ping; Wang, Da-Qi; Acta Crystallographica Section E 62 (2006) o5864–o5865; doi:10.1107/S1600536806050227

data_2211478
_publ_section_title
;
 6,6'-Dimethoxy-2,2'-(ethane-1,2-diyldiiminodimethylene)diphenol
;
_journal_coeditor_code           IS2110
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o5864
_journal_page_last               o5865
_journal_paper_doi               10.1107/S1600536806050227
_journal_volume                  62
_journal_year                    2006
_chemical_formula_iupac          'C18 H24 N2 O4'
_chemical_formula_moiety         'C18 H24 N2 O4'
_chemical_formula_sum            'C18 H24 N2 O4'
_chemical_formula_weight         332.39
_chemical_name_systematic
;
6,6'-Dimethoxy-2,2'-(ethane-1,2-diyldiiminodimethylene)diphenol
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.431(3)
_cell_length_b                   10.512(4)
_cell_length_c                   17.414(6)
_cell_measurement_reflns_used    2582
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      25.417
_cell_measurement_theta_min      2.339
_cell_volume                     1726.4(10)
_computing_cell_refinement       'SAINT (Siemens, 1996)'
_computing_data_collection       'SMART (Siemens, 1996)'
_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      298(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker SMART 1000 CCD 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  0.0494
_diffrn_reflns_av_sigmaI/netI    0.0313
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            8220
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.34
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.091
_exptl_absorpt_correction_T_max  0.9716
_exptl_absorpt_correction_T_min  0.9510
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            white
_exptl_crystal_density_diffrn    1.279
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             712
_exptl_crystal_size_max          0.56
_exptl_crystal_size_mid          0.54
_exptl_crystal_size_min          0.32
_refine_diff_density_max         0.246
_refine_diff_density_min         -0.198
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.017
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     109
_refine_ls_number_reflns         1525
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.017
_refine_ls_R_factor_all          0.0656
_refine_ls_R_factor_gt           0.0413
_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^)+(0.0429P)^2^+0.7829P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1094
_refine_ls_wR_factor_ref         0.1363
_reflns_number_gt                1104
_reflns_number_total             1525
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            is2110.cif
_cod_data_source_block           I
_cod_database_code               2211478
_cod_database_fobs_code          2211478