Significant progress in predicting the crystal structures of small organic molecules – a report on the fourth blind test
Day, Graeme M.; Cooper, Timothy G.; Cruz-Cabeza, Aurora J.; Hejczyk, Katarzyna E.; Ammon, Herman L.; Boerrigter, Stephan X. M.; Tan, Jeffrey S.; Della Valle, Raffaele G.; Venuti, Elisabetta; Jose, Jovan; Gadre, Shridhar R.; Desiraju, Gautam R.; Thakur, Tejender S.; van Eijck, Bouke P.; Facelli, Julio C.; Bazterra, Victor E.; Ferraro, Marta B.; Hofmann, Detlef W. M.; Neumann, Marcus A.; Leusen, Frank J. J.; Kendrick, John; Price, Sarah L.; Misquitta, Alston J.; Karamertzanis, Panagiotis G.; Welch, Gareth W. A.; Scheraga, Harold A.; Arnautova, Yelena A.; Schmidt, Martin U.; van de Streek, Jacco; Wolf, Alexandra K.; Schweizer, Bernd; Acta Crystallographica Section B Structural Science 65 (2009) 107–125; doi:10.1107/S0108768109004066

data_2105705
_publ_section_title
;
 Significant progress in predicting the crystal structures of small
 organic molecules -- a report on the fourth blind test
;
_journal_issue                   2
_journal_name_full
'Acta Crystallographica Section B Structural Science'
_journal_page_first              107
_journal_page_last               125
_journal_paper_doi               10.1107/S0108768109004066
_journal_volume                  65
_journal_year                    2009
_chemical_formula_moiety
;
(C6 H7 N3),(C7 H8 O2)
;
_chemical_formula_sum            'C13 H15 N3 O2'
_chemical_formula_weight         245.28
_chemical_name_systematic
;
2-amino-4-methylpyrimidine, 2-methylbenzoic acid
;
_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                 96.646(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.2795(10)
_cell_length_b                   13.6699(18)
_cell_length_c                   12.6695(16)
_cell_measurement_reflns_used    3341
_cell_measurement_temperature    203(2)
_cell_measurement_theta_max      27.4
_cell_measurement_theta_min      2.2
_cell_volume                     1252.3(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_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      203(2)
_diffrn_measured_fraction_theta_full 0.930
_diffrn_measured_fraction_theta_max 0.930
_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  0.0532
_diffrn_reflns_av_sigmaI/netI    0.0556
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            10115
_diffrn_reflns_theta_full        28.30
_diffrn_reflns_theta_max         28.30
_diffrn_reflns_theta_min         2.20
_exptl_absorpt_coefficient_mu    0.090
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.301
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             520
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.226
_refine_diff_density_min         -0.200
_refine_diff_density_rms         0.055
_refine_ls_extinction_coef       0.061(5)
_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   1.009
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     174
_refine_ls_number_reflns         2905
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.009
_refine_ls_R_factor_all          0.0799
_refine_ls_R_factor_gt           0.0457
_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^)+(0.0600P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1075
_refine_ls_wR_factor_ref         0.1218
_reflns_number_gt                1791
_reflns_number_total             2905
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            bk5081sup1.cif
_cod_data_source_block           expt_XV
_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 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               2105705