2,2'-[Octane-1,8-diyldioxybis(nitrilomethylidyne)]diphenol
Li, Xiao-Jun; Tong, Jun-Feng; Gong, Shang-Sheng; Wu, Jian-Chao; Xu, Li; Acta Crystallographica Section E 66 (2010) o238–; doi:10.1107/S160053680905466X

data_2224672
_publ_section_title
;
 2,2'-[Octane-1,8-diyldioxybis(nitrilomethylidyne)]diphenol
;
_journal_coeditor_code           HG2620
_journal_issue                   1
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o238
_journal_paper_doi               10.1107/S160053680905466X
_journal_volume                  66
_journal_year                    2010
_chemical_formula_iupac          'C22 H28 N2 O4'
_chemical_formula_moiety         'C22 H28 N2 O4'
_chemical_formula_sum            'C22 H28 N2 O4'
_chemical_formula_weight         384.46
_chemical_melting_point_gt       348
_chemical_melting_point_lt       349
_chemical_name_systematic
;
2,2'-[Octane-1,8-diyldioxybis(nitrilomethylidyne)]diphenol
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 92.9090(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   10.5003(12)
_cell_length_b                   5.3607(8)
_cell_length_c                   18.612(2)
_cell_measurement_reflns_used    1194
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.078
_cell_measurement_theta_min      3.734
_cell_volume                     1046.3(2)
_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      293(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker SMART 1000 CCD area-detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0466
_diffrn_reflns_av_sigmaI/netI    0.0451
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            5181
_diffrn_reflns_theta_full        25.01
_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         2.18
_exptl_absorpt_coefficient_mu    0.084
_exptl_absorpt_correction_T_max  0.9941
_exptl_absorpt_correction_T_min  0.9736
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.220
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle-like
_exptl_crystal_F_000             412
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.122
_refine_diff_density_min         -0.126
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.022
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     127
_refine_ls_number_reflns         1849
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.022
_refine_ls_R_factor_all          0.0857
_refine_ls_R_factor_gt           0.0439
_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^)+(0.0455P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0947
_refine_ls_wR_factor_ref         0.1096
_reflns_number_gt                1109
_reflns_number_total             1849
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            hg2620.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/n'
_cod_database_code               2224672
_cod_database_fobs_code          2224672