2,4-Dihydroxy-<i>N</i>'-(4-methoxybenzylidene)benzohydrazide
Yun-Peng Diao; Shan-Shan Huang; Jian-Kui Zhang; Ting-Guo Kang; Acta Crystallographica Section E 64 (2008) o470–o470; doi:10.1107/S1600536808001104

data_2217648
_publ_section_title
;
 2,4-Dihydroxy-<i>N</i>'-(4-methoxybenzylidene)benzohydrazide
;
_journal_coeditor_code           RZ2192
_journal_issue                   2
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o470
_journal_page_last               o470
_journal_paper_doi               10.1107/S1600536808001104
_journal_volume                  64
_journal_year                    2008
_chemical_formula_iupac          'C15 H14 N2 O4'
_chemical_formula_moiety         'C15 H14 N2 O4'
_chemical_formula_sum            'C15 H14 N2 O4'
_chemical_formula_weight         286.28
_chemical_name_systematic
;
2,4-Dihydroxy-N'-(4-methoxybenzylidene)benzohydrazide
;
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_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                   12.494(3)
_cell_length_b                   5.1960(10)
_cell_length_c                   20.825(4)
_cell_measurement_reflns_used    3064
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      27.2
_cell_measurement_theta_min      2.7
_cell_volume                     1351.9(5)
_computing_cell_refinement       'SAINT (Bruker, 2000)'
_computing_data_collection       'SMART (Bruker, 2000)'
_computing_data_reduction        'SAINT (Bruker, 2000)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXTL (Sheldrick, 2008)'
_computing_structure_solution    'SHELXTL (Sheldrick, 2008)'
_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 CCD area-detector'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
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_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
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_diffrn_reflns_limit_h_max       15
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_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            7661
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         1.96
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.104
_exptl_absorpt_correction_T_max  0.9796
_exptl_absorpt_correction_T_min  0.9775
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2000)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.407
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             600
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.129
_refine_diff_density_min         -0.150
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
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_refine_ls_number_reflns         1519
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_refine_ls_restrained_S_all      1.059
_refine_ls_R_factor_all          0.0351
_refine_ls_R_factor_gt           0.0306
_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^)+(0.0468P)^2^+0.123P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0761
_refine_ls_wR_factor_ref         0.0794
_reflns_number_gt                1382
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_reflns_threshold_expression     I>2\s(I)
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_cod_data_source_block           I
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_cod_database_fobs_code          2217648