Mechanisms of reactions conducted on α-amido-α-aminonitrones, determined based on the structures of their crystalline products and DFT calculations
Trzewik, Bartosz; Seidler, Tomasz; Brocławik, Ewa; Stadnicka, Katarzyna; New Journal of Chemistry 34 (2010) 2220–; doi:10.1039/c0nj00193g

data_7053560
_publ_section_title
;
 Mechanisms of reactions conducted on \a-amido-\a-aminonitrones,
 determined based on the structures of their crystalline products and DFT
 calculations
;
_journal_issue                   10
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              2220
_journal_paper_doi               10.1039/c0nj00193g
_journal_volume                  34
_journal_year                    2010
_chemical_formula_moiety         'C21 H18 N4 O2'
_chemical_formula_sum            'C21 H18 N4 O2'
_chemical_formula_weight         358.39
_chemical_melting_point          415.0(10)
_chemical_name_common
;(E)-5-(4-Methylpyridin-2-yl)-2-phenyl-3-(phenylimino)-1,2,5-
oxadiazinan-4-one
;
_chemical_name_systematic
;
(E)-5-(4-Methylpyridin-2-yl)-2-phenyl-3-(phenylimino)-1,2,5-oxadiazinan-4-one
;
_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                116.607(2)
_cell_angle_beta                 115.147(2)
_cell_angle_gamma                94.549(2)
_cell_formula_units_Z            2
_cell_length_a                   10.3512(3)
_cell_length_b                   10.5145(3)
_cell_length_c                   10.8469(4)
_cell_measurement_reflns_used    2326
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      39.389
_cell_measurement_theta_min      2.910
_cell_volume                     900.91(6)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor, 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction
'HKL DENZO and Scalepack (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'Ortep3 (Farrugia,1997)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR-92 (ALTOMARE et al., 1994)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.982
_diffrn_measured_fraction_theta_max 0.982
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       '\f and \o scans to fill Ewald sphere'
_diffrn_radiation_monochromator  'horizontally mounted graphite crystal'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0261
_diffrn_reflns_av_sigmaI/netI    0.0453
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            5519
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         3.59
_exptl_absorpt_coefficient_mu    0.088
_exptl_absorpt_correction_T_max  0.9749
_exptl_absorpt_correction_T_min  0.9565
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'HKL DENZO and Scalepack (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.321
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             376
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.38
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.180
_refine_diff_density_min         -0.181
_refine_diff_density_rms         0.035
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.002
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     244
_refine_ls_number_reflns         4077
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.002
_refine_ls_R_factor_all          0.0705
_refine_ls_R_factor_gt           0.0482
_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^)+(0.0609P)^2^+0.2162P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1195
_refine_ls_wR_factor_ref         0.1351
_reflns_number_gt                3031
_reflns_number_total             4077
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0nj00193g.txt
_cod_data_source_block           (6b)
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value '414-416 K' was changed to
'415.0(10)' - the average value was taken and precision was
estimated.

'_geom_hbond_publ_flag' value 'Y' changed to 'y'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26 (3
times).

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      'P -1 '
_cod_database_code               7053560