1,3-Bis[(4-methylbenzylidene)aminooxy]propane
Wu, Jian-Chao; Gao, Su-Xia; Dong, Wen-Kui; Tong, Jun-Feng; Li, Li; Acta Crystallographica Section E 65 (2009) o2784–; doi:10.1107/S1600536809042147

data_2223839
_publ_section_title
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 1,3-Bis[(4-methylbenzylidene)aminooxy]propane
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_journal_coeditor_code           HG2578
_journal_issue                   11
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o2784
_journal_paper_doi               10.1107/S1600536809042147
_journal_volume                  65
_journal_year                    2009
_chemical_formula_iupac          'C19 H22 N2 O2'
_chemical_formula_moiety         'C19 H22 N2 O2'
_chemical_formula_sum            'C19 H22 N2 O2'
_chemical_formula_weight         310.39
_chemical_melting_point_gt       329
_chemical_melting_point_lt       330
_chemical_name_systematic
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1,3-Bis[(4-methylbenzylidene)aminooxy]propane
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 98.5680(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   29.843(2)
_cell_length_b                   4.8668(7)
_cell_length_c                   12.1202(11)
_cell_measurement_reflns_used    780
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      25.149
_cell_measurement_theta_min      2.761
_cell_volume                     1740.7(3)
_computing_cell_refinement       'SAINT (Siemens, 1996)'
_computing_data_collection       'SMART (Siemens, 1996)'
_computing_data_reduction        'SHELXTL (Sheldrick, 2008)'
_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 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Siemens SMART 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  0.0624
_diffrn_reflns_av_sigmaI/netI    0.0655
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -34
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            4227
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         2.76
_exptl_absorpt_coefficient_mu    0.077
_exptl_absorpt_correction_T_max  0.9946
_exptl_absorpt_correction_T_min  0.9675
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.184
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle-like
_exptl_crystal_F_000             664
_exptl_crystal_size_max          0.43
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.132
_refine_diff_density_min         -0.199
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.123
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     106
_refine_ls_number_reflns         1530
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.123
_refine_ls_R_factor_all          0.1077
_refine_ls_R_factor_gt           0.0579
_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^)+(0.0710P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1604
_refine_ls_wR_factor_ref         0.1753
_reflns_number_gt                831
_reflns_number_total             1530
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            hg2578.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      C2/c
_cod_database_code               2223839
_cod_database_fobs_code          2223839