Synthesis and X-ray or NMR/DFT Structure Elucidation of Twenty-One New Trifluoromethyl Derivatives of Soluble Cage Isomers of C76, C78, C84, and C90
Ivan E. Kareev; Alexey A. Popov; Igor V. Kuvychko; Natalia B. Shustova; Sergey F. Lebedkin; Vyachevslav P. Bubnov; Oren P. Anderson; Konrad Seppelt; Steven H. Strauss; Olga V. Boltalina; Journal of the American Chemical Society 130 (2008) 13471–13489; doi:10.1021/ja8041614

data_4108431
_publ_section_title
;
 Synthesis and X-ray or NMR/DFT Structure Elucidation of Twenty-One New
 Trifluoromethyl Derivatives of Soluble Cage Isomers of C76, C78, C84, and
 C90
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              13471
_journal_page_last               13489
_journal_paper_doi               10.1021/ja8041614
_journal_volume                  130
_journal_year                    2008
_chemical_formula_moiety         C78(CF3)12,C6H5Br
_chemical_formula_sum            'C96 H5 Br F36'
_chemical_formula_weight         1921.91
_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                 96.030(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   18.526(5)
_cell_length_b                   14.922(5)
_cell_length_c                   26.019(8)
_cell_measurement_reflns_used    999
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      22.
_cell_measurement_theta_min      2.
_cell_volume                     7153(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'CCD Bruker 1000 '
_diffrn_measurement_method       'omega 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  0.0831
_diffrn_reflns_av_sigmaI/netI    0.0704
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            42496
_diffrn_reflns_theta_full        22.07
_diffrn_reflns_theta_max         22.07
_diffrn_reflns_theta_min         1.58
_diffrn_standards_decay_%        none
_exptl_absorpt_coefficient_mu    0.725
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.5684
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   Bruker_2000_NT_Software_Reference_Manual
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.785
_exptl_crystal_description       needle
_exptl_crystal_F_000             3760
_exptl_crystal_size_max          0.6
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.764
_refine_diff_density_min         -0.880
_refine_diff_density_rms         0.082
_refine_ls_extinction_coef       0.00042(17)
_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   1.072
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1199
_refine_ls_number_reflns         8795
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.072
_refine_ls_R_factor_all          0.1012
_refine_ls_R_factor_gt           0.0673
_refine_ls_shift/su_max          0.007
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0980P)^2^+7.3800P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1663
_refine_ls_wR_factor_ref         0.1819
_reflns_number_gt                5970
_reflns_number_total             8795
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja8041614_si_004.cif
_cod_data_source_block           c78cf12b
_cod_database_code               4108431