Balancing intermolecular hydrogen-bond interactions for the directed assembly of binary 1 : 1 co-crystals
Christer B. Aakeröy; Nate Schultheiss; John Desper; Curtis Moore; New Journal of Chemistry 30 (2006) 1452–; doi:10.1039/b608267j

data_7052363
_publ_section_title
;
 Balancing intermolecular hydrogen-bond interactions for the directed
 assembly of binary 1 : 1 co-crystals
;
_journal_issue                   10
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              1452
_journal_paper_doi               10.1039/b608267j
_journal_volume                  30
_journal_year                    2006
_chemical_formula_moiety         '(C13 H12 N4 O) (C7 H4 N2 O6)'
_chemical_formula_sum            'C20 H16 N6 O7'
_chemical_formula_weight         452.39
_chemical_name_systematic
;
1-(3-methoxy-5-pyridyl)-2-(2-amino-6-methyl-4-pyrimidyl)ethyne, (NO2)2PhCOOH
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                93.51(10)
_cell_angle_beta                 96.29(7)
_cell_angle_gamma                104.50(11)
_cell_formula_units_Z            2
_cell_length_a                   7.374(11)
_cell_length_b                   8.385(13)
_cell_length_c                   17.56(3)
_cell_measurement_reflns_used    1024
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.25
_cell_measurement_theta_min      2.35
_cell_volume                     1040(3)
_computing_cell_refinement       'Bruker XSCANS'
_computing_data_collection       'Bruker XSCANS'
_computing_data_reduction        'Bruker SHELXTL'
_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      173(2)
_diffrn_measured_fraction_theta_full 0.917
_diffrn_measured_fraction_theta_max 0.917
_diffrn_measurement_device_type  'Bruker P4'
_diffrn_measurement_method       '\w 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  0.2098
_diffrn_reflns_av_sigmaI/netI    0.3545
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            7011
_diffrn_reflns_theta_full        27.14
_diffrn_reflns_theta_max         27.14
_diffrn_reflns_theta_min         2.34
_exptl_absorpt_coefficient_mu    0.113
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.444
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod
_exptl_crystal_F_000             468
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.607
_refine_diff_density_min         -0.723
_refine_diff_density_rms         0.125
_refine_ls_extinction_coef       0.057(12)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.042
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     301
_refine_ls_number_reflns         4228
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.042
_refine_ls_R_factor_all          0.2841
_refine_ls_R_factor_gt           0.1139
_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^)+(0.1000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2495
_refine_ls_wR_factor_ref         0.3299
_reflns_number_gt                1209
_reflns_number_total             4228
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b608267j.txt
_cod_data_source_block           3a
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7052363