(<i>E</i>)-6-Amino-1,3-dimethyl-5-[(pyridin-2-ylmethylidene)amino]pyrimidine-2,4(1<i>H</i>,3<i>H</i>)-dione
Booysen, Irvin; Hlela, Thulani; Ismail, Muhammed; Gerber, Thomas; Hosten, Eric; Betz, Richard; Acta Crystallographica Section E 67 (2011) o2289–; doi:10.1107/S1600536811031618

data_2231598
_publ_section_title
;
 (<i>E</i>)-6-Amino-1,3-dimethyl-5-[(pyridin-2-ylmethylidene)amino]pyrimidine-2,4(1<i>H</i>,3<i>H</i>)-dione
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_journal_coeditor_code           LH5299
_journal_issue                   9
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o2289
_journal_paper_doi               10.1107/S1600536811031618
_journal_volume                  67
_journal_year                    2011
_chemical_formula_iupac          'C12 H13 N5 O2'
_chemical_formula_moiety         'C12 H13 N5 O2'
_chemical_formula_sum            'C12 H13 N5 O2'
_chemical_formula_weight         259.27
_chemical_name_systematic
(<i>E</i>)-6-Amino-1,3-dimethyl-5-[(pyridin-2-ylmethylidene)amino]pyrimidine-2,4(1<i>H</i>,3<i>H</i>)-dione
_space_group_IT_number           43
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'F 2 -2d'
_symmetry_space_group_name_H-M   'F d d 2'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            16
_cell_length_a                   26.5036(8)
_cell_length_b                   28.9987(14)
_cell_length_c                   6.21930(10)
_cell_measurement_reflns_used    2610
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      25.19
_cell_measurement_theta_min      2.81
_cell_volume                     4780.0(3)
_computing_cell_refinement       'SAINT (Bruker, 2010)'
_computing_data_collection       'APEX2 (Bruker, 2010)'
_computing_data_reduction        'SAINT (Bruker, 2010)'
_computing_molecular_graphics
'ortep-3 (Farrugia, 1997) and Mercury (Macrae <i>et al.</i>, 2008)'
_computing_publication_material
'SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker APEXII CCD'
_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  0.0490
_diffrn_reflns_av_sigmaI/netI    0.0471
_diffrn_reflns_limit_h_max       32
_diffrn_reflns_limit_h_min       -35
_diffrn_reflns_limit_k_max       38
_diffrn_reflns_limit_k_min       -38
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            11316
_diffrn_reflns_theta_full        28.32
_diffrn_reflns_theta_max         28.32
_diffrn_reflns_theta_min         2.08
_exptl_absorpt_coefficient_mu    0.103
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.441
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       platelet
_exptl_crystal_F_000             2176
_exptl_crystal_size_max          0.268
_exptl_crystal_size_mid          0.141
_exptl_crystal_size_min          0.060
_refine_diff_density_max         0.170
_refine_diff_density_min         -0.191
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.938
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     182
_refine_ls_number_reflns         1620
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.937
_refine_ls_R_factor_all          0.0625
_refine_ls_R_factor_gt           0.0386
_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^)+(0.0422P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0739
_refine_ls_wR_factor_ref         0.0791
_reflns_number_gt                1171
_reflns_number_total             1620
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            lh5299.cif
_cod_data_source_block           I
_cod_database_code               2231598
_cod_database_fobs_code          2231598