Third Generation Light-Driven Symmetric Molecular Motors.
Kistemaker, Jos C. M.; Stacko, Peter; Roke, Diederik; Wolters, Alexander Thomas; Heideman, G. Henrieke; Chang, Mu-Chieh; van der Meulen, Pieter; Visser, Johan; Otten, Edwin; Feringa, Ben L.; Journal of the American Chemical Society  (2017) –; doi:10.1021/jacs.7b04412

data_4126259
_publ_section_title
;
 Third Generation Light-Driven Symmetric Molecular Motors.
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_journal_name_full               'Journal of the American Chemical Society'
_journal_paper_doi               10.1021/jacs.7b04412
_journal_year                    2017
_chemical_formula_moiety         'C36 H23 F'
_chemical_formula_sum            'C36 H23 F'
_chemical_formula_weight         474.54
_chemical_name_systematic
;
 ?
;
_space_group_crystal_system      orthorhombic
_space_group_IT_number           62
_space_group_name_Hall           '-P 2ac 2n'
_space_group_name_H-M_alt        'P n m a'
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2013
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   17.3351(5)
_cell_length_b                   25.9113(7)
_cell_length_c                   5.20880(10)
_cell_measurement_reflns_used    9973
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.11
_cell_measurement_theta_min      3.14
_cell_volume                     2339.66(10)
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.997
_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  0.0336
_diffrn_reflns_av_unetI/netI     0.0159
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       33
_diffrn_reflns_limit_k_min       -33
_diffrn_reflns_limit_l_max       6
_diffrn_reflns_limit_l_min       -6
_diffrn_reflns_number            26364
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.135
_diffrn_reflns_theta_min         3.145
_exptl_absorpt_coefficient_mu    0.082
_exptl_absorpt_correction_T_max  0.965
_exptl_absorpt_correction_T_min  0.913
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick,1996)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.347
_exptl_crystal_description       needle
_exptl_crystal_F_000             992
_exptl_crystal_size_max          0.440
_exptl_crystal_size_mid          0.090
_exptl_crystal_size_min          0.080
_refine_diff_density_max         0.340
_refine_diff_density_min         -0.235
_refine_diff_density_rms         0.042
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.030
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     173
_refine_ls_number_reflns         2639
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.030
_refine_ls_R_factor_all          0.0463
_refine_ls_R_factor_gt           0.0370
_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^)+(0.0444P)^2^+1.2264P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0884
_refine_ls_wR_factor_ref         0.0938
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2263
_reflns_number_total             2639
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja7b04412_si_002.cif
_cod_data_source_block           mo_molan269_0ma
_cod_database_code               4126259
_shelx_estimated_absorpt_t_min   0.965
_shelx_estimated_absorpt_t_max   0.993
_shelxl_version_number           2013-4
_shelx_res_checksum              20494
_shelx_hkl_checksum              20259