3,4,5-Trihydroxybenzohydrazide
Ashiq, Uzma; Ara Jamal, Rifat; Yousuf, Sammer; Acta Crystallographica Section E 67 (2011) o2462–; doi:10.1107/S1600536811034374

data_2231510
_publ_section_title
;
 3,4,5-Trihydroxybenzohydrazide
;
_journal_coeditor_code           HB6363
_journal_issue                   9
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o2462
_journal_paper_doi               10.1107/S1600536811034374
_journal_volume                  67
_journal_year                    2011
_chemical_formula_iupac          'C7 H8 N2 O4'
_chemical_formula_moiety         'C7 H8 N2 O4'
_chemical_formula_sum            'C7 H8 N2 O4'
_chemical_formula_weight         184.15
_chemical_name_systematic
;
3,4,5-Trihydroxybenzohydrazide
;
_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                 93.290(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   3.7307(3)
_cell_length_b                   22.8402(18)
_cell_length_c                   8.7064(7)
_cell_measurement_reflns_used    2464
_cell_measurement_temperature    273(2)
_cell_measurement_theta_max      28.29
_cell_measurement_theta_min      2.95
_cell_volume                     740.65(10)
_computing_cell_refinement       'SAINT (Bruker, 2000)'
_computing_data_collection       'SMART (Bruker, 2000)'
_computing_data_reduction        'SAINT (Bruker, 2000)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material
;
SHELXTL, PARST (Nardelli, 1995) and PLATON (Spek, 2009)
;
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      273(2)
_diffrn_measured_fraction_theta_full 0.973
_diffrn_measured_fraction_theta_max 0.973
_diffrn_measurement_device_type
;
Bruker SMART APEX CCD area-detector diffractometer
;
_diffrn_measurement_method       '\w scan'
_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  0.0155
_diffrn_reflns_av_sigmaI/netI    0.0145
_diffrn_reflns_limit_h_max       4
_diffrn_reflns_limit_h_min       -4
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            4345
_diffrn_reflns_theta_full        25.48
_diffrn_reflns_theta_max         25.48
_diffrn_reflns_theta_min         1.78
_exptl_absorpt_coefficient_mu    0.138
_exptl_absorpt_correction_T_max  0.9730
_exptl_absorpt_correction_T_min  0.9625
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2000)'
_exptl_crystal_colour            Colorles
_exptl_crystal_density_diffrn    1.651
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             384
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.181
_refine_diff_density_min         -0.240
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.093
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     150
_refine_ls_number_reflns         1352
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.093
_refine_ls_R_factor_all          0.0373
_refine_ls_R_factor_gt           0.0342
_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^)+(0.0509P)^2^+0.2069P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0891
_refine_ls_wR_factor_ref         0.0921
_reflns_number_gt                1234
_reflns_number_total             1352
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            hb6363.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2231510
_cod_database_fobs_code          2231510