Multiple Conformations of Benzil in Resorcinarene-Based Supramolecular Host Matrixes
Bao-Qing Ma; Yuegang Zhang; Philip Coppens; Journal of Organic Chemistry 68 (2003) 9467–9472; doi:10.1021/jo035169k

data_4022560
_publ_section_title
;
 Multiple Conformations of Benzil in Resorcinarene-Based
 Supramolecular Host Matrixes
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              9467
_journal_page_last               9472
_journal_paper_doi               10.1021/jo035169k
_journal_volume                  68
_journal_year                    2003
_chemical_formula_sum            'C56 H49.5 N2 O10'
_chemical_formula_weight         910.48
_chemical_name_systematic
; 
 ? 
;
_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                 92.345(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   19.813(3)
_cell_length_b                   20.818(2)
_cell_length_c                   21.366(3)
_cell_measurement_temperature    90(1)
_cell_volume                     8805.4(17)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART CCD 1000'
_computing_data_reduction        SAINT
_computing_molecular_graphics    XP
_computing_publication_material  XCIF
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      90(1)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'SMART CCD 1000'
_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  0.1416
_diffrn_reflns_av_sigmaI/netI    0.0857
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            125122
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         1.37
_exptl_absorpt_coefficient_mu    0.094
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.374
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             3836
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.067
_refine_diff_density_min         -0.683
_refine_diff_density_rms         0.121
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.974
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1225
_refine_ls_number_reflns         17314
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.974
_refine_ls_R_factor_all          0.1452
_refine_ls_R_factor_gt           0.0921
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1909P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2402
_refine_ls_wR_factor_ref         0.2874
_reflns_number_gt                9630
_reflns_number_total             17314
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo035169ksi20030821_121303.cif
_cod_data_source_block           p21c
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_original_formula_sum        'C56 H49.50 N2 O10'
_cod_database_code               4022560