1-Acetyl-4',5'a-diphenyl-2',2'a,5',5'a-tetrahydrospiro[1<i>H</i>-indole-3,2'-oxeto[5,4-<i>b</i>]oxazol]-2(3<i>H</i>)-one
Xue-Mei Li; Lei Wang; Jian-Hua Xu; Shu-Sheng Zhang; Hoong-Kun Fun; Acta Crystallographica Section E 59 (2003) o1883–o1885; doi:10.1107/S1600536803024644

data_2202524
_publ_section_title
1-Acetyl-4',5'a-diphenyl-2',2'a,5',5'a-tetrahydrospiro[1<i>H</i>-indole-3,2'-oxeto[5,4-<i>b</i>]oxazol]-2(3<i>H</i>)-one
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1883
_journal_page_last               o1885
_journal_paper_doi               10.1107/S1600536803024644
_journal_volume                  59
_journal_year                    2003
_chemical_formula_iupac          'C25 H18 N2 O4'
_chemical_formula_moiety         'C25 H18 N2 O4'
_chemical_formula_sum            'C25 H18 N2 O4'
_chemical_formula_weight         410.41
_chemical_melting_point          492.0(10)
_chemical_name_systematic
;
1-Acetyl-4',5a'-diphenyl-2',2a',5',5a'-tetrahydrospiro[1H-indole-3,2'-
oxeto[5,4-b]oxazol]-2(3H)-one
;
_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
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 107.4320(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.1912(10)
_cell_length_b                   10.3984(6)
_cell_length_c                   12.6742(8)
_cell_measurement_reflns_used    4012
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      26.80
_cell_measurement_theta_min      2.36
_cell_volume                     2035.9(2)
_computing_cell_refinement       'SAINT (Siemens, 1996)'
_computing_data_collection       'SMART (Siemens, 1996)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    SHELXTL
_computing_publication_material
;
SHELXTL, PARST (Nardelli, 1995) and PLATON (Spek, 1990)
;
_computing_structure_refinement  SHELXTL
_computing_structure_solution    'SHELXTL (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 8.33
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type
;
Siemens SMART CCD area-detector
;
_diffrn_measurement_method       \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  0.0271
_diffrn_reflns_av_sigmaI/netI    0.0318
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            9901
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.36
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.092
_exptl_absorpt_correction_T_max  0.9909
_exptl_absorpt_correction_T_min  0.9642
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.339
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             856
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.157
_refine_diff_density_min         -0.234
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.167
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     337
_refine_ls_number_reflns         3567
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.167
_refine_ls_R_factor_all          0.0788
_refine_ls_R_factor_gt           0.0598
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w = 1/[\s^2^(Fo^2^)+(0.0494P)^2^+0.7969P] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1274
_refine_ls_wR_factor_ref         0.1362
_reflns_number_gt                2683
_reflns_number_total             3567
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ci6294.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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:

'_chemical_melting_point' value '491--493 K' was changed to
'492.0(10)' - the average value was taken and precision was
estimated.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 

The following automatic conversions were performed:

'_chemical_melting_point' value '491--493 K' was changed to
'492.0(10)' - the average value was taken and precision was
estimated.

'_symmetry_cell_setting' value 'Monoclinic' changed to
'monoclinic' 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_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2202524
_cod_database_fobs_code          2202524