Supramolecular Grid and Layer Architectures. Hydrogen Bonds and Halogen−Halogen Interactions Influenced by Bromo-, Chloro-, and Cyano-Substituted Anilic Acids
Zaman, Md. Badruz; Udachin, Konstantin A.; Ripmeester, John A.; Crystal Growth & Design 4 (2004) 585–; doi:10.1021/cg034134a

data_4505288
_publ_section_title
;
 Supramolecular Grid and Layer Architectures. Hydrogen Bonds and
 Halogen&#x2212;Halogen Interactions Influenced by Bromo-, Chloro-, and
 Cyano-Substituted Anilic Acids
;
_journal_issue                   3
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              585
_journal_paper_doi               10.1021/cg034134a
_journal_volume                  4
_journal_year                    2004
_chemical_formula_sum            'C20 H20 Cl2 N4 O4'
_chemical_formula_weight         451.30
_chemical_name_common
'Supramolecular complex between chloranilic acid, 2,2'-bipyrimidine and water'
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 100.081(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   25.790(2)
_cell_length_b                   3.7148(3)
_cell_length_c                   17.2252(14)
_cell_measurement_temperature    173(2)
_cell_volume                     1624.8(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71070
_diffrn_reflns_av_R_equivalents  0.0495
_diffrn_reflns_av_sigmaI/netI    0.0493
_diffrn_reflns_limit_h_max       34
_diffrn_reflns_limit_h_min       -34
_diffrn_reflns_limit_k_max       4
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            8907
_diffrn_reflns_theta_full        28.73
_diffrn_reflns_theta_max         28.73
_diffrn_reflns_theta_min         1.60
_exptl_absorpt_coefficient_mu    0.222
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_density_diffrn    0.922
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             468
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.283
_refine_diff_density_min         -0.252
_refine_diff_density_rms         0.062
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.951
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     130
_refine_ls_number_reflns         2076
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.951
_refine_ls_R_factor_all          0.0636
_refine_ls_R_factor_gt           0.0387
_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^)+(0.0461P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0797
_refine_ls_wR_factor_ref         0.0867
_reflns_number_gt                1491
_reflns_number_total             2076
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg034134asi20030716_025835.cif
_cod_data_source_block           z85_(Compound-2)
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'multiscan' changed to
'multi-scan' 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      C2/c
_cod_database_code               4505288