(<i>E</i>)-<i>N</i>'-(2,4-Dichlorobenzylidene)nicotinohydrazide
Qiu, Xiao-Yang; Acta Crystallographica Section E 63 (2007) o4524–o4524; doi:10.1107/S1600536807053147

data_2216258
_publ_section_title
;
 (<i>E</i>)-<i>N</i>'-(2,4-Dichlorobenzylidene)nicotinohydrazide
;
_journal_coeditor_code           BI2245
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o4524
_journal_page_last               o4524
_journal_paper_doi               10.1107/S1600536807053147
_journal_volume                  63
_journal_year                    2007
_chemical_formula_iupac          'C13 H9 Cl2 N3 O'
_chemical_formula_moiety         'C13 H9 Cl2 N3 O'
_chemical_formula_sum            'C13 H9 Cl2 N3 O'
_chemical_formula_weight         294.13
_chemical_name_systematic
;
(<i>E</i>)-<i>N</i>'-(2,4-Dichlorobenzylidene)nicotinohydrazide
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 111.081(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   4.7646(6)
_cell_length_b                   25.075(3)
_cell_length_c                   11.9420(12)
_cell_measurement_reflns_used    1785
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      25
_cell_measurement_theta_min      4.2
_cell_volume                     1331.3(3)
_computing_cell_refinement       'SAINT (Bruker, 1998)'
_computing_data_collection       'SMART (Bruker, 1998)'
_computing_data_reduction        'SAINT (Bruker, 1998)'
_computing_molecular_graphics    'SHELXTL (Bruker, 1997)'
_computing_publication_material  'SHELXTL (Bruker, 1997)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.976
_diffrn_measured_fraction_theta_max 0.976
_diffrn_measurement_device_type  'Bruker SMART APEX CCD'
_diffrn_measurement_method       \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  0.0459
_diffrn_reflns_av_sigmaI/netI    0.0552
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       29
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            7889
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.00
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.481
_exptl_absorpt_correction_T_max  0.945
_exptl_absorpt_correction_T_min  0.930
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            white
_exptl_crystal_density_diffrn    1.468
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             600
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.211
_refine_diff_density_min         -0.191
_refine_ls_extinction_coef       0.014(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXTL (Bruker, 1997)'
_refine_ls_goodness_of_fit_ref   0.850
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     173
_refine_ls_number_reflns         2290
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.850
_refine_ls_R_factor_all          0.0946
_refine_ls_R_factor_gt           0.0467
_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^)+(0.0774P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1102
_refine_ls_wR_factor_ref         0.1270
_reflns_number_gt                1206
_reflns_number_total             2290
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            bi2245.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2216258
_cod_database_fobs_code          2216258