Inclusion Compounds of Tetrakis(4-nitrophenyl)methane: C-H...O Networks, Pseudopolymorphism, and Structural Transformations
Ram Thaimattam; Feng Xue; Jagarlapudi A. R. P. Sarma; Thomas C. W. Mak; Gautam R. Desiraju; Journal of the American Chemical Society 123 (2001) 4432–4445; doi:10.1021/ja0031826

data_4115523
_publ_section_title
;
 Inclusion Compounds of Tetrakis(4-nitrophenyl)methane: C-H...O Networks,
 Pseudopolymorphism, and Structural Transformations
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              4432
_journal_page_last               4445
_journal_paper_doi               10.1021/ja0031826
_journal_volume                  123
_journal_year                    2001
_chemical_formula_sum            'C39.5 H28 N6 O13'
_chemical_formula_weight         794.68
_space_group_IT_number           86
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  '-P 4bc'
_symmetry_space_group_name_H-M   'P 42/n :2'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.139(6)
_cell_length_b                   13.139(6)
_cell_length_c                   23.087(13)
_cell_measurement_temperature    294(2)
_cell_volume                     3986(3)
_computing_cell_refinement       'Bruker SMART (Bruker, 1998)'
_computing_data_collection       'Bruker SMART (Bruker, 1998)'
_computing_data_reduction        'Bruker SAINT (Bruker, 1998)'
_computing_molecular_graphics    'XP in SHEXTL-NT 5.1 (Bruker, 1998)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      294(2)
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device_type  'Bruker Smart CCD Area Detector'
_diffrn_measurement_method       '\w-\f scan'
_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  0.0826
_diffrn_reflns_av_sigmaI/netI    0.0534
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            26889
_diffrn_reflns_theta_full        27.57
_diffrn_reflns_theta_max         27.57
_diffrn_reflns_theta_min         1.76
_exptl_absorpt_coefficient_mu    0.102
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.442
_exptl_absorpt_correction_type   'SADABS (Bruker, 1998)'
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    1.324
_exptl_crystal_description       block
_exptl_crystal_F_000             1644
_exptl_crystal_size_max          0.55
_exptl_crystal_size_mid          0.47
_exptl_crystal_size_min          0.32
_refine_diff_density_max         0.752
_refine_diff_density_min         -0.483
_refine_diff_density_rms         0.113
_refine_ls_extinction_coef       0.0027(16)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.335
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     279
_refine_ls_number_reflns         4561
_refine_ls_number_restraints     294
_refine_ls_restrained_S_all      1.353
_refine_ls_R_factor_all          0.2288
_refine_ls_R_factor_gt           0.1463
_refine_ls_shift/su_max          0.157
_refine_ls_shift/su_mean         0.022
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.2000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.4051
_refine_ls_wR_factor_ref         0.4464
_reflns_number_gt                1995
_reflns_number_total             4561
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja0031826_02.cif
_cod_data_source_block           2
_cod_original_sg_symbol_H-M      'P 42/n'
_cod_original_formula_sum        'C39.50 H28 N6 O13'
_cod_database_code               4115523