Substituent Effects That Control Conjugated Oligomer Conformation through Non-covalent Interactions.
Sharber, Seth A.; Baral, Rom Nath; Frausto, Fanny; Haas, Terry E.; Müller, Peter; Thomas Iii, Samuel W.; Journal of the American Chemical Society  (2017) –; doi:10.1021/jacs.7b00878

data_4126305
_publ_section_title
;
 Substituent Effects That Control Conjugated Oligomer Conformation through
 Non-covalent Interactions.
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_paper_doi               10.1021/jacs.7b00878
_journal_year                    2017
_chemical_formula_sum            'C40 H18 F12 O4'
_chemical_formula_weight         790.54
_space_group_crystal_system      orthorhombic
_space_group_IT_number           33
_space_group_name_Hall           'P 2c -2n'
_space_group_name_H-M_alt        'P n a 21'
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2016-11-15 # Formatted by publCIF

;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   14.7008(16)
_cell_length_b                   7.6554(8)
_cell_length_c                   58.176(6)
_cell_measurement_reflns_used    9633
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      23.34
_cell_measurement_theta_min      0.70
_cell_volume                     6547.2(12)
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0396
_diffrn_reflns_av_unetI/netI     0.0233
_diffrn_reflns_Laue_measured_fraction_full 0.995
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       64
_diffrn_reflns_limit_l_min       -64
_diffrn_reflns_number            74376
_diffrn_reflns_point_group_measured_fraction_full 0.995
_diffrn_reflns_point_group_measured_fraction_max 0.995
_diffrn_reflns_theta_full        23.335
_diffrn_reflns_theta_max         23.335
_diffrn_reflns_theta_min         0.700
_exptl_absorpt_coefficient_mu    0.149
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS-2014/5
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.604
_exptl_crystal_description       Prism
_exptl_crystal_F_000             3184
_exptl_crystal_size_max          2
_exptl_crystal_size_mid          1
_exptl_crystal_size_min          1
_exptl_transmission_factor_max   1
_exptl_transmission_factor_min   0.885
_refine_diff_density_max         0.476
_refine_diff_density_min         -0.355
_refine_diff_density_rms         0.064
_refine_ls_abs_structure_details
;
 Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   0.1(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.144
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1010
_refine_ls_number_reflns         9473
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.144
_refine_ls_R_factor_all          0.0466
_refine_ls_R_factor_gt           0.0448
_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^)+(0.0627P)^2^+9.9315P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1220
_refine_ls_wR_factor_ref         0.1272
_reflns_Friedel_coverage         0.977
_reflns_Friedel_fraction_full    0.995
_reflns_Friedel_fraction_max     0.995
_reflns_number_gt                9218
_reflns_number_total             9473
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja7b00878_si_003.cif
_cod_data_source_block           CF3-F3_Violet
_cod_database_code               4126305
_shelx_shelxl_version_number     2014/7
_shelx_res_checksum              81588
_shelx_hkl_checksum              84843