Terephthalic acid‒4,4'-bipyridine (2/1)
Wang, Suwen; Yang, Tianyu; Li, Zhongfang; Yu, Xianjin; Acta Crystallographica Section E 65 (2009) o2198–; doi:10.1107/S160053680903236X

data_2223007
_publ_section_title
;
 Terephthalic acid--4,4'-bipyridine (2/1)
;
_journal_coeditor_code           BX2232
_journal_issue                   9
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o2198
_journal_paper_doi               10.1107/S160053680903236X
_journal_volume                  65
_journal_year                    2009
_chemical_formula_iupac          '2C8 H6 O4, C10 H8 N2'
_chemical_formula_moiety         '2(C8 H6 O4), C10 H8 N2'
_chemical_formula_sum            'C26 H20 N2 O8'
_chemical_formula_weight         488.44
_chemical_name_systematic
;
terephthalic acid--4,4'-bipyridine (2/1)
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 92.25(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   7.788(10)
_cell_length_b                   6.814(8)
_cell_length_c                   20.77(3)
_cell_measurement_reflns_used    1066
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      23.01
_cell_measurement_theta_min      2.76
_cell_volume                     1101(2)
_computing_cell_refinement       'SAINT-Plus (Bruker, 2001)'
_computing_data_collection       'APEX2 (Bruker, 2004)'
_computing_data_reduction        'SAINT-Plus (Bruker, 2001)'
_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      296(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker APEXII CCD area-detector'
_diffrn_measurement_method       '\f and \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  0.0284
_diffrn_reflns_av_sigmaI/netI    0.0367
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            5164
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.96
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.111
_exptl_absorpt_correction_T_max  0.9803
_exptl_absorpt_correction_T_min  0.9707
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2001)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.473
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             508
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.200
_refine_diff_density_min         -0.233
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.003
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     169
_refine_ls_number_reflns         1930
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.003
_refine_ls_R_factor_all          0.0930
_refine_ls_R_factor_gt           0.0542
_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^)+(0.098P)^2^+0.1551P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1488
_refine_ls_wR_factor_ref         0.1783
_reflns_number_gt                1192
_reflns_number_total             1930
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            bx2232.cif
_cod_data_source_block           I
_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_cell_volume        1102(2)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2223007