Atropisomerism in a thermally switchable, cyclometallated iridium complex.
Howarth, Ashlee J.; Davies, David L.; Lelj, Francesco; Wolf, Michael O.; Patrick, Brian O.; Dalton transactions (Cambridge, England : 2003) 41 (2012) 10150–10152; doi:10.1039/c2dt31120h

data_7020256
_publ_section_title
;
 Atropisomerism in a thermally switchable, cyclometallated iridium
 complex.
;
_journal_issue                   34
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              10150
_journal_page_last               10152
_journal_paper_doi               10.1039/c2dt31120h
_journal_volume                  41
_journal_year                    2012
_chemical_formula_sum            'C42 H32 Cl2 F6 Ir N6 P'
_chemical_formula_weight         1028.81
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 102.052(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.3332(10)
_cell_length_b                   12.6913(12)
_cell_length_c                   25.377(2)
_cell_measurement_reflns_used    9977
_cell_measurement_temperature    100.0(2)
_cell_measurement_theta_max      27.89
_cell_measurement_theta_min      2.30
_cell_volume                     3884.6(6)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100.0(2)
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'Bruker X8 APEX II'
_diffrn_measurement_method       'area detector'
_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  0.0452
_diffrn_reflns_av_sigmaI/netI    0.0379
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            51622
_diffrn_reflns_theta_full        27.95
_diffrn_reflns_theta_max         27.95
_diffrn_reflns_theta_min         1.64
_exptl_absorpt_coefficient_mu    3.686
_exptl_absorpt_correction_T_max  0.554
_exptl_absorpt_correction_T_min  0.445
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS, Sheldrick (2008)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.759
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       tablet
_exptl_crystal_F_000             2024
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.16
_refine_diff_density_max         2.189
_refine_diff_density_min         -4.299
_refine_diff_density_rms         0.429
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.301
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     564
_refine_ls_number_reflns         9224
_refine_ls_number_restraints     210
_refine_ls_restrained_S_all      1.295
_refine_ls_R_factor_all          0.0743
_refine_ls_R_factor_gt           0.0504
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0662P)^2^+25.3412P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1375
_refine_ls_wR_factor_ref         0.1662
_reflns_number_gt                7301
_reflns_number_total             9224
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            c2dt31120h.txt
_cod_data_source_block           mw160_a
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7020256