2-Cyano-<i>N</i>-(2,6-dimethoxypyrimidin-4-yl)-3-[4-(dimethylamino)phenyl]acrylamide and dimethylammonium 6-cyano-1,3-dimethyl-2,4,5-trioxo-1,2,3,4,5,8-hexahydropyrido[2,3-<i>d</i>]pyrimidin-8-ide: a π-stacked dimer and a hydrogen-bonded ribbon containing three types of ring
Quiroga, Jairo; Gálvez, Jaime; Hursthouse, Michael B.; Cobo, Justo; Glidewell, Christopher; Acta Crystallographica Section C 66 (2010) o39–o43; doi:10.1107/S0108270109053785

data_2017468
_publ_section_title
;2-Cyano-<i>N</i>-(2,6-dimethoxypyrimidin-4-yl)-3-[4-(dimethylamino)phenyl]acrylamide
 and dimethylammonium
 6-cyano-1,3-dimethyl-2,4,5-trioxo-1,2,3,4,5,8-hexahydropyrido[2,3-<i>d</i>]pyrimidin-8-ide:
 a \p-stacked dimer and a hydrogen-bonded ribbon containing three types of
 ring
;
_journal_coeditor_code           FA3211
_journal_issue                   1
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o39
_journal_page_last               o43
_journal_paper_doi               10.1107/S0108270109053785
_journal_volume                  66
_journal_year                    2010
_chemical_formula_iupac          'C18 H19 N5 O3'
_chemical_formula_moiety         'C18 H19 N5 O3'
_chemical_formula_sum            'C18 H19 N5 O3'
_chemical_formula_weight         353.38
_chemical_name_systematic
;
2-cyano-<i>N</i>-(2,6-dimethoxypyrimidin-4-yl)-3-[4-
(dimethylamino)phenyl]acrylamide
;
_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
_cell_angle_alpha                93.693(2)
_cell_angle_beta                 93.562(3)
_cell_angle_gamma                99.196(2)
_cell_formula_units_Z            2
_cell_length_a                   7.9772(2)
_cell_length_b                   10.0023(4)
_cell_length_c                   10.8409(5)
_cell_measurement_reflns_used    3350
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      26.05
_cell_measurement_theta_min      3.09
_cell_volume                     849.80(6)
_computing_cell_refinement       'DIRAX/LSQ (Duisenberg <i>et al.</i>,  2000)'
_computing_data_collection       'COLLECT (Nonius, 1999)'
_computing_data_reduction        'EVALCCD (Duisenberg <i>et al.</i>,  2003)'
_computing_molecular_graphics    'PLATON (Spek, 2009)'
_computing_publication_material
;
SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009)
;
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR2004 (Burla <i>et al.</i>,  2005)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker Nonius KappaCCD area-detector'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Bruker Nonius FR591 rotating anode'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0549
_diffrn_reflns_av_sigmaI/netI    0.0466
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            15270
_diffrn_reflns_theta_full        26.05
_diffrn_reflns_theta_max         26.05
_diffrn_reflns_theta_min         3.09
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.098
_exptl_absorpt_correction_T_max  0.988
_exptl_absorpt_correction_T_min  0.978
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 2003)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.381
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             372
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.299
_refine_diff_density_min         -0.276
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.041
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     239
_refine_ls_number_reflns         3350
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.041
_refine_ls_R_factor_all          0.0682
_refine_ls_R_factor_gt           0.0471
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0813P)^2^+0.0098P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1194
_refine_ls_wR_factor_ref         0.1327
_reflns_number_gt                2512
_reflns_number_total             3350
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            fa3211.cif
_cod_data_source_block           I
_cod_database_code               2017468
_cod_database_fobs_code          2017468