2,3-Dihydro-4-phenyl-1,4-benzoxazine-6,7-dicarbonitrile
Karadayı, Nevzat; Akyüz, Emine; Kahveci, Bahittin; Ağar, Erbil; S̨aşmaz, Selami; Büyükgüngör, Orhan; Acta Crystallographica Section E 60 (2004) o450–o452; doi:10.1107/S1600536804003861

data_2203325
_publ_section_title
;
 2,3-Dihydro-4-phenyl-1,4-benzoxazine-6,7-dicarbonitrile
;
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o450
_journal_page_last               o452
_journal_paper_doi               10.1107/S1600536804003861
_journal_volume                  60
_journal_year                    2004
_chemical_formula_iupac          'C16 H11 N3 O'
_chemical_formula_moiety         'C16 H11 N3 O'
_chemical_formula_sum            'C16 H11 N3 O'
_chemical_formula_weight         261.28
_chemical_name_systematic
;
2,3-Dihydro-4-phenyl-1,4-benzoxazine-6,7-dicarbonitrile
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 114.879(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.3699(14)
_cell_length_b                   7.5806(4)
_cell_length_c                   13.1208(14)
_cell_measurement_reflns_used    8295
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      28.33
_cell_measurement_theta_min      1.71
_cell_volume                     1296.6(2)
_computing_cell_refinement       X-AREA
_computing_data_collection       'X-AREA (Stoe & Cie, 2002)'
_computing_data_reduction        'X-RED (Stoe & Cie, 2002)'
_computing_molecular_graphics
;
ORTEPIII (Burnett & Johnson, 1996) and PLUTON (Spek, 1997)
;
_computing_publication_material
;
WinGX (Farrugia, 1999)
;
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device       '2-circle goniometer'
_diffrn_measurement_device_type  'Stoe IPDS-2'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  'plane graphite'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0497
_diffrn_reflns_av_sigmaI/netI    0.0325
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            15978
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.11
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.087
_exptl_absorpt_correction_T_max  0.9930
_exptl_absorpt_correction_T_min  0.9798
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details
;
(X-RED32; Stoe&Cie, 2002)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.338
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             544
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.175
_refine_diff_density_min         -0.161
_refine_ls_extinction_coef       0.031(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL97
_refine_ls_goodness_of_fit_ref   0.906
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     226
_refine_ls_number_reflns         2264
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      1.126
_refine_ls_R_factor_all          0.0669
_refine_ls_R_factor_gt           0.0381
_refine_ls_shift/su_max          0.025
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w = 1/[\s^2^(Fo^2^)+(0.059P)^2^] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0893
_refine_ls_wR_factor_ref         0.0978
_reflns_number_gt                1449
_reflns_number_total             2264
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            na6297.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2203325
_cod_database_fobs_code          2203325