2'-(3,4-Dimethoxybenzylidene)-2-hydroxybenzohydrazide
Jian-Guo Yang; Fu-You Pan; Acta Crystallographica Section E 61 (2005) o831–o832; doi:10.1107/S1600536805002497

data_2205438
_publ_section_title
;
 2'-(3,4-Dimethoxybenzylidene)-2-hydroxybenzohydrazide
;
_journal_issue                   4
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o831
_journal_page_last               o832
_journal_paper_doi               10.1107/S1600536805002497
_journal_volume                  61
_journal_year                    2005
_chemical_formula_iupac          'C16 H16 N2 O4'
_chemical_formula_moiety         'C16 H16 N2 O4'
_chemical_formula_sum            'C16 H16 N2 O4'
_chemical_formula_weight         300.31
_chemical_name_systematic
;
2'-(3,4-Dimethoxybenzylidene)-2-hydroxybenzohydrazide
;
_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                 90.390(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.2877(6)
_cell_length_b                   21.724(2)
_cell_length_c                   10.9742(11)
_cell_measurement_reflns_used    1585
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      48.075
_cell_measurement_theta_min      5.277
_cell_volume                     1499.0(2)
_computing_cell_refinement       SAINT
_computing_data_collection       'SMART (Bruker, 2002)'
_computing_data_reduction        'SAINT (Bruker, 2002)'
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  SHELXTL
_computing_structure_solution    'SHELXTL (Bruker, 2002)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Bruker APEX 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  0.0373
_diffrn_reflns_av_sigmaI/netI    0.0489
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            8757
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         1.87
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.097
_exptl_absorpt_correction_T_max  0.9696
_exptl_absorpt_correction_T_min  0.9602
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2002)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.331
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             632
_exptl_crystal_size_max          0.423
_exptl_crystal_size_mid          0.347
_exptl_crystal_size_min          0.321
_refine_diff_density_max         0.134
_refine_diff_density_min         -0.114
_refine_ls_extinction_coef       0.0041(10)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL97
_refine_ls_goodness_of_fit_ref   0.866
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     234
_refine_ls_number_reflns         3226
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.866
_refine_ls_R_factor_all          0.0832
_refine_ls_R_factor_gt           0.0422
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w = 1/[\s^2^(Fo^2^)+(0.036P)^2^] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0810
_refine_ls_wR_factor_ref         0.0927
_reflns_number_gt                1797
_reflns_number_total             3226
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ci6520.cif
_cod_data_source_block           I
_cod_original_cell_volume        1499.0(3)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2205438
_cod_database_fobs_code          2205438