Hierarchy of Supramolecular Synthons: Persistent Carboxylic Acid···Pyridine Hydrogen Bonds in Cocrystals That also Contain a Hydroxyl Moiety
Shattock, Tanise R.; Arora, Kapildev K.; Vishweshwar, Peddy; Zaworotko, Michael J.; Crystal Growth & Design 8 (2008) 4533–; doi:10.1021/cg800565a

data_4503819
_publ_section_title
;
 Hierarchy of Supramolecular Synthons: Persistent Carboxylic
 Acid&#x00B7;&#x00B7;&#x00B7;Pyridine Hydrogen Bonds in Cocrystals That
 also Contain a Hydroxyl Moiety
;
_journal_issue                   12
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              4533
_journal_paper_doi               10.1021/cg800565a
_journal_volume                  8
_journal_year                    2008
_chemical_formula_moiety         'C7 H6 O3, 0.5(C8 H12 N2), C2 H3 N'
_chemical_formula_sum            'C13 H15 N2 O3'
_chemical_formula_weight         247.27
_chemical_melting_point          '178 - 182 &#x00BA;C'
_chemical_name_common            '2:1:2 Co-crystal of 4HBA + TMP + CH3CN'
_chemical_name_systematic
; 
 2:1:2 Co-crystal of 4-hydroxybenzoic acid, Tetramethylpyrazine and CH3CN 
;
_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                 94.920(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.693(4)
_cell_length_b                   8.694(3)
_cell_length_c                   12.722(4)
_cell_measurement_reflns_used    1469
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      25.06
_cell_measurement_theta_min      2.84
_cell_volume                     1288.5(7)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.959
_diffrn_measured_fraction_theta_max 0.959
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0348
_diffrn_reflns_av_sigmaI/netI    0.0581
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -3
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            4901
_diffrn_reflns_theta_full        25.07
_diffrn_reflns_theta_max         25.07
_diffrn_reflns_theta_min         1.75
_exptl_absorpt_coefficient_mu    0.092
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.520
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS; Sheldrick, 1996'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.275
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             524
_exptl_crystal_preparation       acetonitrile
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.169
_refine_diff_density_min         -0.162
_refine_diff_density_rms         0.043
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     163
_refine_ls_number_reflns         2198
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.0683
_refine_ls_R_factor_gt           0.0461
_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^)+(0.0539P)^2^+0.0956P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1110
_refine_ls_wR_factor_ref         0.1218
_reflns_number_gt                1598
_reflns_number_total             2198
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg800565a_si_005.cif
_cod_data_source_block           ts788c
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4503819