π-Stacked hydrogen-bonded chains of rings in 2,4-difluorobenzaldehyde isonicotinoylhydrazone and hydrogen-bonded sheets in 2,3-dichlorobenzaldehyde isonicotinoylhydrazone
Wardell, Solange M. S. V.; de Souza, Marcus V. N.; Ferreira, MArcelle de L.; Vasconcelos, Thatyana R. A.; Low, John N.; Glidewell, Christopher; Acta Crystallographica Section C 61 (2005) o617–o620; doi:10.1107/S0108270105029136

data_2015190
_publ_section_title
;
 \p-Stacked hydrogen-bonded chains of rings in 2,4-difluorobenzaldehyde
 isonicotinoylhydrazone and hydrogen-bonded sheets in
 2,3-dichlorobenzaldehyde isonicotinoylhydrazone
;
_journal_coeditor_code           SK1868
_journal_issue                   10
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o617
_journal_page_last               o620
_journal_paper_doi               10.1107/S0108270105029136
_journal_volume                  61
_journal_year                    2005
_chemical_formula_iupac          'C13 H9 F2 N3 O'
_chemical_formula_moiety         'C13 H9 F2 N3 O'
_chemical_formula_sum            'C13 H9 F2 N3 O'
_chemical_formula_weight         261.23
_chemical_name_systematic
;
2,4-difluorobenzaldehyde isonicotinoylhydrazone
;
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 107.953(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.8859(3)
_cell_length_b                   24.7258(12)
_cell_length_c                   7.2582(2)
_cell_measurement_reflns_used    2658
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      3.22
_cell_volume                     1175.61(8)
_computing_cell_refinement       'DENZO (Otwinowski & Minor, 1997) and COLLECT'
_computing_data_collection       'COLLECT (Nonius, 1999)'
_computing_data_reduction        'DENZO and COLLECT'
_computing_molecular_graphics    'PLATON (Spek, 2003)'
_computing_publication_material  'SHELXL97 and PRPKAPPA (Ferguson, 1999)'
_computing_structure_refinement  'OSCAIL and SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution
'OSCAIL (McArdle, 2003) and SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.985
_diffrn_measurement_device_type  'Nonius KappaCCD area-detector'
_diffrn_measurement_method       '\f and \w'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Bruker-Nonius FR91 rotating anode'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0309
_diffrn_reflns_av_sigmaI/netI    0.0293
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -32
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            10256
_diffrn_reflns_theta_full        26.50
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.22
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.119
_exptl_absorpt_correction_T_max  0.988
_exptl_absorpt_correction_T_min  0.946
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 2003)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.476
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             536
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.253
_refine_diff_density_min         -0.277
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.074
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     178
_refine_ls_number_reflns         2658
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.074
_refine_ls_R_factor_all          0.0520
_refine_ls_R_factor_gt           0.0407
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.035P)^2^+0.6726P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0956
_refine_ls_wR_factor_ref         0.1009
_reflns_number_gt                2231
_reflns_number_total             2658
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            sk1868.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2015190
_cod_database_fobs_code          2015190