Hydrogen-bonded ribbons in ethyl (<i>E</i>)-3-[2-amino-4,6-bis(dimethylamino)pyrimidin-5-yl]-2-cyanoacrylate and 2-[(2-amino-4,6-di-1-piperidylpyrimidin-5-yl)methylene]malononitrile
Trilleras, Jorge; Low, John N.; Cobo, Justo; Marchal, Antonio; Glidewell, Christopher; Acta Crystallographica Section C 64 (2008) o145–o148; doi:10.1107/S0108270108003132

data_2016514
_publ_section_title
;
 Hydrogen-bonded ribbons in ethyl
 (<i>E</i>)-3-[2-amino-4,6-bis(dimethylamino)pyrimidin-5-yl]-2-cyanoacrylate
 and
 2-[(2-amino-4,6-di-1-piperidylpyrimidin-5-yl)methylene]malononitrile
;
_journal_coeditor_code           SK3200
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o145
_journal_page_last               o148
_journal_paper_doi               10.1107/S0108270108003132
_journal_volume                  64
_journal_year                    2008
_chemical_formula_iupac          'C14 H20 N6 O2'
_chemical_formula_moiety         'C14 H20 N6 O2'
_chemical_formula_sum            'C14 H20 N6 O2'
_chemical_formula_weight         304.36
_chemical_name_systematic
;
ethyl (E)-3-[2-amino-4,6-bis(dimethylamino)pyrimidin-5-yl]-2-cyanoacrylate
;
_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                87.534(13)
_cell_angle_beta                 77.251(15)
_cell_angle_gamma                67.431(14)
_cell_formula_units_Z            2
_cell_length_a                   8.5570(15)
_cell_length_b                   9.893(2)
_cell_length_c                   9.9739(18)
_cell_measurement_reflns_used    3468
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.50
_cell_measurement_theta_min      4.06
_cell_volume                     759.6(3)
_computing_cell_refinement       'DIRAX/LSQ (Duisenberg <i>et al.</i>,  2000)'
_computing_data_collection       'COLLECT (Hooft, 1999)'
_computing_data_reduction        'EVALCCD (Duisenberg <i>et al.</i>,  2003)'
_computing_molecular_graphics    'PLATON (Spek, 2003)'
_computing_publication_material
'SHELXL97 (Sheldrick, 2008) and PRPKAPPA (Ferguson, 1999)'
_computing_structure_refinement
'OSCAIL (McArdle, 2003) and 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 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker--Nonius KappaCCD'
_diffrn_measurement_method       '\f and \w'
_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  0.0854
_diffrn_reflns_av_sigmaI/netI    0.0947
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            18938
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         4.06
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.094
_exptl_absorpt_correction_T_max  0.986
_exptl_absorpt_correction_T_min  0.971
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 2003)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.331
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             324
_exptl_crystal_size_max          0.37
_exptl_crystal_size_mid          0.34
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.435
_refine_diff_density_min         -0.367
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.033
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     204
_refine_ls_number_reflns         3468
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.033
_refine_ls_R_factor_all          0.1692
_refine_ls_R_factor_gt           0.0690
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.1300P)^2^+0.0863P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1667
_refine_ls_wR_factor_ref         0.2356
_reflns_number_gt                1715
_reflns_number_total             3468
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            sk3200.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_exptl_absorpt_correction_type' value 'Multi-scan' 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_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-scan' 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_database_code               2016514
_cod_database_fobs_code          2016514