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_4115525
_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            'C57 H39 Br N8 O17'
_chemical_formula_weight         1187.87
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           60
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2n 2ab'
_symmetry_space_group_name_H-M   'P b c n'
_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                   18.340(2)
_cell_length_b                   15.680(2)
_cell_length_c                   18.216(2)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      15
_cell_measurement_theta_min      5
_cell_volume                     5238.4(11)
_computing_cell_refinement       'MSC/AFC Diffractometer Control (MSC, 1994)'
_computing_data_collection       'MSC/AFC Diffractometer Control (MSC, 1994)'
_computing_data_reduction        'MSC/AFC Diffractometer Control (MSC, 1994)'
_computing_molecular_graphics    'SHELXTL-PC (Siemens, 1990)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Rigaku AFC7R'
_diffrn_measurement_method       '\w scan'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source
;
Rigaku RU-200 rotating-anode generator powered at 50kV and 90mA
;
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0000
_diffrn_reflns_av_sigmaI/netI    0.1923
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            5134
_diffrn_reflns_theta_full        25.99
_diffrn_reflns_theta_max         25.99
_diffrn_reflns_theta_min         2.04
_diffrn_standards_decay_%        1.14
_diffrn_standards_interval_count 197
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.870
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.934
_exptl_absorpt_correction_type   psi-scan
_exptl_crystal_colour            'Pale yellow'
_exptl_crystal_density_diffrn    1.506
_exptl_crystal_description       prism
_exptl_crystal_F_000             2432
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.19
_refine_diff_density_max         0.601
_refine_diff_density_min         -0.650
_refine_diff_density_rms         0.059
_refine_ls_extinction_coef       0.0011(3)
_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   0.904
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     387
_refine_ls_number_reflns         5134
_refine_ls_number_restraints     335
_refine_ls_restrained_S_all      0.904
_refine_ls_R_factor_all          0.2805
_refine_ls_R_factor_gt           0.0651
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1106P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1732
_refine_ls_wR_factor_ref         0.2389
_reflns_number_gt                1581
_reflns_number_total             5134
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja0031826_04.cif
_cod_data_source_block           4
_cod_original_cell_volume        5238.4(5)
_cod_database_code               4115525