Centrosymmetric π-stacked dimers in 5-(2-acetyloxyphenyl)-3-phenyl-1,2,4-oxadiazole
Wardell, Solange M. S. V.; Carvalho, Carlos E. M.; Low, John N.; Glidewell, Christopher; Acta Crystallographica Section E 59 (2003) o1729–o1730; doi:10.1107/S1600536803022864

data_2202720
_publ_section_title
;
 Centrosymmetric \p-stacked dimers in
 5-(2-acetyloxyphenyl)-3-phenyl-1,2,4-oxadiazole
;
_journal_issue                   11
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1729
_journal_page_last               o1730
_journal_paper_doi               10.1107/S1600536803022864
_journal_volume                  59
_journal_year                    2003
_chemical_formula_iupac          'C16 H12 N2 O3'
_chemical_formula_moiety         'C16 H12 N2 O3'
_chemical_formula_sum            'C16 H12 N2 O3'
_chemical_formula_weight         280.28
_chemical_name_systematic
;
5-(2-Acetyloxyphenyl)-3-phenyl-1,2,4-oxadiazole
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 105.955(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.5489(8)
_cell_length_b                   5.4293(3)
_cell_length_c                   17.2806(13)
_cell_measurement_reflns_used    2875
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.50
_cell_measurement_theta_min      3.25
_cell_volume                     1312.42(14)
_computing_cell_refinement       'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'KappaCCD Server Software (Nonius, 1997)'
_computing_data_reduction        DENZO-SMN
_computing_molecular_graphics    'PLATON (Spek, 2003)'
_computing_publication_material  'SHELXL97 and PRPKAPPA (Ferguson, 1999)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.957
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       '\f scans, and \w scans with \k offsets'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1150
_diffrn_reflns_av_sigmaI/netI    0.1330
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            8160
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         3.25
_diffrn_standards_decay_%        negligible
_exptl_absorpt_coefficient_mu    0.100
_exptl_absorpt_correction_T_max  0.999
_exptl_absorpt_correction_T_min  0.951
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(DENZO-SMN; Otwinowski & Minor, 1997)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.418
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             584
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.01
_refine_diff_density_max         0.261
_refine_diff_density_min         -0.267
_refine_ls_extinction_coef       0.016(3)
_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   0.968
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     192
_refine_ls_number_reflns         2875
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.968
_refine_ls_R_factor_all          0.1215
_refine_ls_R_factor_gt           0.0552
_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^)+(0.0465P)^2^] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1052
_refine_ls_wR_factor_ref         0.1263
_reflns_number_gt                1649
_reflns_number_total             2875
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            lh6125.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_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2202720
_cod_database_fobs_code          2202720