The biologically active iron chelators 2-pyridylcarboxaldehyde isonicotinoylhydrazone, 2-pyridylcarboxaldehyde benzoylhydrazone monohydrate and 2-furaldehyde isonicotinoylhydrazone
Richardson, Des R.; Becker, Erika; Bernhardt, Paul V.; Acta Crystallographica Section C 55 (1999) 2102–2105; doi:10.1107/S0108270199011531

data_2009357
_publ_section_title
;
 The biologically active iron chelators 2-pyridylcarboxaldehyde
 isonicotinoylhydrazone, 2-pyridylcarboxaldehyde benzoylhydrazone
 monohydrate and 2-furaldehyde isonicotinoylhydrazone
;
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              2102
_journal_page_last               2105
_journal_paper_doi               10.1107/S0108270199011531
_journal_volume                  55
_journal_year                    1999
_chemical_formula_sum            'C12 H10 N4 O'
_chemical_formula_weight         226.24
_chemical_name_systematic
;
2-pyridylcarboxaldehyde isonicotinoyl hydrazone
;
_space_group_IT_number           43
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'F 2 -2d'
_symmetry_space_group_name_H-M   'F d d 2'
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            16
_cell_length_a                   43.749(10)
_cell_length_b                   20.984(2)
_cell_length_c                   4.5980(10)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      14.1
_cell_measurement_theta_min      9.3
_cell_volume                     4221.1(14)
_computing_cell_refinement       'SET4 in CAD-4 Software'
_computing_data_collection       'CAD-4 Software (Enraf-Nonius, 1989)'
_computing_data_reduction        'Xtal3.2 (Hall et al., 1992)'
_computing_molecular_graphics    'PLATON (Spek, 1990)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.255
_diffrn_measured_fraction_theta_max 0.255
_diffrn_measurement_device_type  'Enraf-Nonius CAD-4'
_diffrn_measurement_method       \w-2\q
_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  0.068
_diffrn_reflns_av_sigmaI/netI    0.0756
_diffrn_reflns_limit_h_max       51
_diffrn_reflns_limit_h_min       -51
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       5
_diffrn_reflns_limit_l_min       -2
_diffrn_reflns_number            2163
_diffrn_reflns_theta_full        24.98
_diffrn_reflns_theta_max         24.98
_diffrn_reflns_theta_min         1.86
_diffrn_standards_decay_%        <5
_diffrn_standards_interval_time  120
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.097
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.424
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1888
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.19
_refine_diff_density_min         -0.20
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.034
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     154
_refine_ls_number_reflns         1060
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.033
_refine_ls_R_factor_all          0.108
_refine_ls_R_factor_gt           0.050
_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^)+(0.0532P)^2^] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.122
_reflns_number_gt                625
_reflns_number_total             1060
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ta1264.cif
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc w =
1/[\s^2^(Fo^2^)+(0.0532P)^2^] where P = (Fo^2^+2Fc^2^)/3' was changed
to 'calc'. New tag '_refine_ls_weighting_details' was created. The
value of the new tag was set to 'w = 1/[\s^2^(Fo^2^)+(0.0532P)^2^]
where P = (Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_database_code               2009357