Supramolecular synthons in phenol?isonicotinamide adducts
Vishweshwar, Peddy; Nangia, Ashwini; Lynch, Vincent M.; CrystEngComm 5 (2003) 164–; doi:10.1039/b304078j

data_7204665
_publ_section_title
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 Supramolecular synthons in phenol?isonicotinamide adducts
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_journal_issue                   31
_journal_name_full               CrystEngComm
_journal_page_first              164
_journal_paper_doi               10.1039/b304078j
_journal_volume                  5
_journal_year                    2003
_chemical_formula_moiety         'C6 H6 N2 O, 0.5(C6 H6 O2)'
_chemical_formula_sum            'C9 H9 N2 O2'
_chemical_formula_weight         177.18
_chemical_melting_point          428
_chemical_name_common
'1:2 molecular complex of hydroquinone and isonicotinamide'
_chemical_name_systematic
; 
1:2 molecular complex of hydroquinone and isonicotinamide
;
_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                 111.9340(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.2811(4)
_cell_length_b                   5.4136(2)
_cell_length_c                   11.9110(3)
_cell_measurement_reflns_used    1933
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      27.47
_cell_measurement_theta_min      3.08
_cell_volume                     854.21(5)
_computing_cell_refinement       'DENZO-SMN (Z. Otwinowski and W. Minor, 1997)'
_computing_data_collection       'Collect data collection software, Nonius 1998'
_computing_data_reduction        'SCALEPACK (Z. Otwinowski and W. Minor, 1997)'
_computing_molecular_graphics    'PLUTON (Spek, 1992)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      153(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal focus for the X-ray tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0318
_diffrn_reflns_av_sigmaI/netI    0.0599
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            3354
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         3.08
_diffrn_standards_decay_%        'less than 1'
_exptl_absorpt_coefficient_mu    0.100
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.378
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    .
_exptl_crystal_description       Lathes
_exptl_crystal_F_000             372
_exptl_crystal_preparation       Ethanol
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.183
_refine_diff_density_min         -0.225
_refine_diff_density_rms         0.047
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.040
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     154
_refine_ls_number_reflns         1933
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.0832
_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^)+(0.0576P)^2^+0.0052P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0957
_refine_ls_wR_factor_ref         0.1131
_reflns_number_gt                1277
_reflns_number_total             1933
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b304078j.txt
_cod_data_source_block           hqin
_cod_depositor_comments
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The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/adriana/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 1555 2011-01-17 13:19:09Z saulius 

The following automatic conversions were performed:

'_chemical_melting_point' value '428 K' was changed to '428' - the
value should be numeric and without a unit designator.

Automatic conversion script
Id: cif_fix_values 1569 2011-02-09 13:29:24Z adriana 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7204665