1,3a,5-Triphenyl-3a,4,5,6-tetrahydro-1,2,4-oxadiazolo[4,5-<i>a</i>][1,5]benzodiazepine
Xu, Jiaxi; Jin, Sheng; Acta Crystallographica Section C 55 (1999) 1579–1581; doi:10.1107/S0108270199006575

data_2008990
_publ_section_title
1,3a,5-Triphenyl-3a,4,5,6-tetrahydro-1,2,4-oxadiazolo[4,5-<i>a</i>][1,5]benzodiazepine
_journal_issue                   9
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              1579
_journal_page_last               1581
_journal_paper_doi               10.1107/S0108270199006575
_journal_volume                  55
_journal_year                    1999
_chemical_formula_moiety         'C28 H23 N3 O'
_chemical_formula_sum            'C28 H23 N3 O'
_chemical_formula_weight         417.49
_chemical_name_common            '[1,2,4]oxadiazolo[4,5-a][1,5]benzodiazepine'
_chemical_name_systematic
;
1,3a,5-triphenyl-3a,4,5,6-tetrahydro-[1,2,4]oxadiazolo[4,5-a]
[1,5]benzodiazepine
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_audit_creation_method           SHELXL-97
_cell_angle_alpha                112.60(3)
_cell_angle_beta                 108.47(3)
_cell_angle_gamma                65.02(3)
_cell_formula_units_Z            2
_cell_length_a                   10.961(2)
_cell_length_b                   11.775(2)
_cell_length_c                   10.452(2)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      10
_cell_measurement_theta_min      5
_cell_volume                     1109.5(5)
_computing_cell_refinement       'MSC/AFC Diffractometer Control Software'
_computing_data_collection
;MSC/AFC Diffractometer Control Software (Molecular Structure Corporation,
 1994)
;
_computing_data_reduction        'SHELXS97 (Sheldrick, 1997a)'
_computing_molecular_graphics    'XP (Siemens, 1990)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997b)'
_computing_structure_solution    SHELXS97
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.910
_diffrn_measured_fraction_theta_max 0.910
_diffrn_measurement_device_type  'Rigaku AFC-6S'
_diffrn_measurement_method       \w/2\q
_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  0.035
_diffrn_reflns_av_sigmaI/netI    0.050
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            3775
_diffrn_reflns_theta_full        25.01
_diffrn_reflns_theta_max         25.01
_diffrn_reflns_theta_min         2.09
_diffrn_standards_decay_%        1
_diffrn_standards_interval_count 150
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.077
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.250
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             440
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.173
_refine_diff_density_min         -0.209
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.941
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     289
_refine_ls_number_reflns         3553
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.941
_refine_ls_R_factor_all          0.088
_refine_ls_R_factor_gt           0.043
_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^)+(0.0775P)^2^+0.1352P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.134
_reflns_number_gt                2292
_reflns_number_total             3553
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ta1252.cif
_cod_data_source_block           jin72
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc w =
1/[\s^2^(Fo^2^)+(0.0775P)^2^+0.1352P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to 'w =
1/[\s^2^(Fo^2^)+(0.0775P)^2^+0.1352P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        1109.5(3)
_cod_database_code               2008990
_cod_database_fobs_code          2008990