Programmed twisting of phenylene–ethynylene linkages from aromatic stacking interactions
Mullin, William J.; Pawle, Robert H.; Sharber, Seth A.; Müller, Peter; Thomas, Samuel W.; Journal of Materials Chemistry C 7 (2019) 1198–; doi:10.1039/C8TC05612A

data_7237558
_publ_section_title
;
 Programmed twisting of phenylene--ethynylene linkages from aromatic
 stacking interactions
;
_journal_issue                   5
_journal_name_full               'Journal of Materials Chemistry C'
_journal_page_first              1198
_journal_paper_doi               10.1039/C8TC05612A
_journal_volume                  7
_journal_year                    2019
_chemical_formula_sum            'C48 H28 F10 O4'
_chemical_formula_weight         858.70
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2016/6
_audit_update_record
;
2018-10-24 deposited with the CCDC.
2018-12-18 downloaded from the CCDC.
;
_cell_angle_alpha                68.452(2)
_cell_angle_beta                 76.554(2)
_cell_angle_gamma                74.515(2)
_cell_formula_units_Z            2
_cell_length_a                   12.0511(11)
_cell_length_b                   12.6535(11)
_cell_length_c                   14.0972(12)
_cell_measurement_reflns_used    9856
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      36.48
_cell_measurement_theta_min      2.19
_cell_volume                     1905.0(3)
_computing_structure_refinement  'SHELXL-2016/6 (Sheldrick, 2016)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0342
_diffrn_reflns_av_unetI/netI     0.0410
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            61842
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.995
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         36.579
_diffrn_reflns_theta_min         1.571
_exptl_absorpt_coefficient_mu    0.128
_exptl_absorpt_correction_T_max  0.7472
_exptl_absorpt_correction_T_min  0.7186
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_density_diffrn    1.497
_exptl_crystal_description       prism
_exptl_crystal_F_000             876
_exptl_crystal_size_max          0.150
_exptl_crystal_size_mid          0.150
_exptl_crystal_size_min          0.100
_refine_diff_density_max         0.692
_refine_diff_density_min         -0.249
_refine_diff_density_rms         0.087
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.040
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     563
_refine_ls_number_reflns         18728
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.0869
_refine_ls_R_factor_gt           0.0532
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0791P)^2^+0.3143P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1304
_refine_ls_wR_factor_ref         0.1506
_reflns_Friedel_coverage         0.000
_reflns_number_gt                12962
_reflns_number_total             18728
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8tc05612a2.cif
_cod_data_source_block           WM0210_1_0m_a
_cod_database_code               7237558
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_min   0.981
_shelx_estimated_absorpt_t_max   0.987
_shelx_res_checksum              55930
_shelx_hkl_checksum              32405