2-Hydroxy-<i>N</i>'-[1-(3-methylpyrazin-2-yl)ethylidene]benzohydrazide
Xi-Shi, Tai; Yi-Min, Feng; Acta Crystallographica Section E 64 (2008) o707–; doi:10.1107/S1600536808006697

data_2217927
_publ_section_title
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 2-Hydroxy-<i>N</i>'-[1-(3-methylpyrazin-2-yl)ethylidene]benzohydrazide
;
_journal_coeditor_code           HB2708
_journal_issue                   4
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o707
_journal_paper_doi               10.1107/S1600536808006697
_journal_volume                  64
_journal_year                    2008
_chemical_formula_iupac          'C14 H14 N4 O2'
_chemical_formula_moiety         'C14 H14 N4 O2'
_chemical_formula_sum            'C14 H14 N4 O2'
_chemical_formula_weight         270.29
_chemical_name_systematic
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2-Hydroxy-N'-[1-(3-methylpyrazin-2-yl)ethylidene]benzohydrazide
;
_space_group_IT_number           60
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2n 2ab'
_symmetry_space_group_name_H-M   'P b c n'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   12.6326(14)
_cell_length_b                   9.3346(10)
_cell_length_c                   22.119(3)
_cell_measurement_reflns_used    2332
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      23.683
_cell_measurement_theta_min      2.448
_cell_volume                     2608.3(5)
_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 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker SMART 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  0.0520
_diffrn_reflns_av_sigmaI/netI    0.0389
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            12690
_diffrn_reflns_theta_full        25.01
_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         1.84
_exptl_absorpt_coefficient_mu    0.096
_exptl_absorpt_correction_T_max  0.979
_exptl_absorpt_correction_T_min  0.954
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2000)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.377
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1136
_exptl_crystal_size_max          0.49
_exptl_crystal_size_mid          0.43
_exptl_crystal_size_min          0.22
_refine_diff_density_max         0.200
_refine_diff_density_min         -0.165
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.070
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     181
_refine_ls_number_reflns         2303
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.070
_refine_ls_R_factor_all          0.1007
_refine_ls_R_factor_gt           0.0442
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0649P)^2^+1.2514P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1093
_refine_ls_wR_factor_ref         0.1558
_reflns_number_gt                1380
_reflns_number_total             2303
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            hb2708.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_database_code               2217927
_cod_database_fobs_code          2217927