A chemically powered unidirectional rotary molecular motor based on a palladium redox cycle
Beatrice S. L. Collins; Jos C. M. Kistemaker; Edwin Otten; Ben L. Feringa; Nature Chemistry 8 (2016) 860–866; doi:10.1038/nchem.2543

data_1552022
_publ_section_title
;
 A chemically powered unidirectional rotary molecular motor based on a
 palladium redox cycle
;
_journal_name_full               'Nature Chemistry'
_journal_page_first              860
_journal_page_last               866
_journal_paper_doi               10.1038/nchem.2543
_journal_volume                  8
_journal_year                    2016
_chemical_formula_sum            'C19 H14 Br F O S'
_chemical_formula_weight         389.27
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   11.0067(4)
_cell_length_b                   11.0733(4)
_cell_length_c                   13.4281(4)
_cell_measurement_reflns_used    9998
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.31
_cell_measurement_theta_min      3.02
_cell_volume                     1636.62(10)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_structure_refinement  'SHELXL-2014 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.0206
_diffrn_reflns_av_unetI/netI     0.0250
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            28088
_diffrn_reflns_point_group_measured_fraction_full 0.968
_diffrn_reflns_point_group_measured_fraction_max 0.971
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.325
_diffrn_reflns_theta_min         3.018
_exptl_absorpt_coefficient_mu    2.650
_exptl_absorpt_correction_T_max  0.7457
_exptl_absorpt_correction_T_min  0.5651
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.580
_exptl_crystal_description       block
_exptl_crystal_F_000             784
_exptl_crystal_size_max          0.480
_exptl_crystal_size_mid          0.390
_exptl_crystal_size_min          0.250
_refine_diff_density_max         0.183
_refine_diff_density_min         -0.359
_refine_diff_density_rms         0.061
_refine_ls_abs_structure_details
;
 Flack x determined using 1578 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.015(2)
_refine_ls_extinction_coef       .
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.101
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     209
_refine_ls_number_reflns         3960
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.101
_refine_ls_R_factor_all          0.0159
_refine_ls_R_factor_gt           0.0152
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0177P)^2^+0.0440P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0387
_refine_ls_wR_factor_ref         0.0389
_reflns_Friedel_coverage         0.712
_reflns_Friedel_fraction_full    0.928
_reflns_Friedel_fraction_max     0.936
_reflns_number_gt                3868
_reflns_number_total             3960
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            nchem.2543-s3.cif
_cod_data_source_block           mo_molan327_0m
_cod_database_code               1552022
_shelx_estimated_absorpt_t_min   0.363
_shelx_estimated_absorpt_t_max   0.557
_shelxl_version_number           2014-3
_shelx_res_checksum              28113
_shelx_hkl_checksum              32582