Structure of hydralazine hydrochloride
Okabe, N.; Fukuda, H.; Nakamura, T.; Acta Crystallographica Section C 49 (1993) 1844–1845; doi:10.1107/S0108270193003762

data_2001329
_publ_section_title
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 Structure of hydralazine hydrochloride
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_journal_issue                   10
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              1844
_journal_page_last               1845
_journal_paper_doi               10.1107/S0108270193003762
_journal_volume                  49
_journal_year                    1993
_chemical_formula_sum            'C8 H9 Cl N4'
_chemical_formula_weight         196.64
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yab'
_symmetry_space_group_name_H-M   'P 1 21/a 1'
_atom_type_scat_source           'IntTabIV Table 2.2A'
_cell_angle_alpha                90.0
_cell_angle_beta                 103.57(2)
_cell_angle_gamma                90.0
_cell_formula_units_Z            4
_cell_length_a                   6.644(2)
_cell_length_b                   14.531(3)
_cell_length_c                   9.4130(10)
_cell_measurement_reflns_used    17
_cell_measurement_temperature    296
_cell_measurement_theta_max      13.50
_cell_measurement_theta_min      10.35
_cell_volume                     883.4(3)
_diffrn_measurement_device       'Rigaku AFC-5R'
_diffrn_measurement_method       \w-2\q
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.024
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            2299
_diffrn_reflns_theta_max         27.5
_diffrn_standards_decay_%        'decay of 5.08'
_diffrn_standards_interval_count 150
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.385
_exptl_absorpt_correction_T_max  1.03
_exptl_absorpt_correction_T_min  0.89
_exptl_absorpt_correction_type   'DIFABS (Walker & Stuart, 1983)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.478
_exptl_crystal_density_meas      1.4780(10)
_exptl_crystal_description       Needle
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.49
_refine_diff_density_min         -0.24
_refine_ls_goodness_of_fit_obs   1.61
_refine_ls_hydrogen_treatment    noref
_refine_ls_number_parameters     118
_refine_ls_number_reflns         1184
_refine_ls_R_factor_obs          0.047
_refine_ls_shift/esd_max         0.01
_refine_ls_structure_factor_coef F^2^
_refine_ls_weighting_details     'w = 4F~o~^2^/\s^2^(F~o~)^2^'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_obs         0.056
_reflns_number_observed          1184
_reflns_number_total             2128
_reflns_observed_criterion       I>3.00\s(I)
_cod_data_source_file            oh1021.cif
_cod_data_source_block           oh1021_structure_1_of_1
_cod_depositor_comments
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The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value '4F~o~^2^/\s^2^(F~o~)^2^' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to 'w =
4F~o~^2^/\s^2^(F~o~)^2^'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
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_cod_database_code               2001329