Sterically hindered phenanthroimidazole ligands drive the structural flexibility and facile ligand exchange in cyclometalated iridium(III) complexes.
Tatarin, Sergei V.; Kalle, Paulina; Taydakov, Ilya V.; Varaksina, Evgenia A.; Korshunov, Vladislav M.; Bezzubov, Stanislav I.; Dalton transactions (Cambridge, England : 2003) 50 (2021) 6889–6900; doi:10.1039/d1dt00820j

data_7707209
_publ_section_title
;
 Sterically hindered phenanthroimidazole ligands drive the structural
 flexibility and facile ligand exchange in cyclometalated iridium(III)
 complexes.
;
_journal_issue                   20
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              6889
_journal_page_last               6900
_journal_paper_doi               10.1039/d1dt00820j
_journal_volume                  50
_journal_year                    2021
_chemical_formula_moiety         'C108 H64 Cl6 Ir2 N8'
_chemical_formula_sum            'C108 H64 Cl6 Ir2 N8'
_chemical_formula_weight         2070.77
_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
_atom_sites_solution_primary     iterative
_audit_creation_date             2020-12-22
_audit_creation_method
;
Olex2 1.3
(compiled Nov 21 2019 18:26:39 for OlexSys, GUI svn.r6003)
;
_audit_update_record
;
2020-12-23 deposited with the CCDC.	2021-04-27 downloaded from the CCDC.
;
_cell_angle_alpha                69.415(2)
_cell_angle_beta                 64.151(2)
_cell_angle_gamma                79.109(2)
_cell_formula_units_Z            2
_cell_length_a                   17.8595(11)
_cell_length_b                   18.4756(10)
_cell_length_c                   19.4513(11)
_cell_measurement_reflns_used    9812
_cell_measurement_temperature    150.0
_cell_measurement_theta_max      26.39
_cell_measurement_theta_min      2.23
_cell_volume                     5402.4(5)
_computing_cell_refinement       'APEX3 v.2017.3_0 (Bruker AXS, 2017)'
_computing_data_collection       'APEX3 v.2017.3_0 (Bruker AXS, 2017)'
_computing_data_reduction        'SAINT v8.38A (Bruker AXS, 2016)'
_computing_molecular_graphics    'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'olex2.solve 1.3 (Bourhis et al., 2015)'
_diffrn_ambient_temperature      150.0
_diffrn_detector                 'Bruker PHOTON III CMOS'
_diffrn_detector_area_resol_mean 10.4
_diffrn_detector_type            'CMOS sensor'
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device       '3-circle diffractometer'
_diffrn_measurement_device_type  'Bruker D8 Venture'
_diffrn_measurement_method       \w-scan
_diffrn_radiation_monochromator  'focusing mirrors'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0508
_diffrn_reflns_av_unetI/netI     0.0638
_diffrn_reflns_Laue_measured_fraction_full 0.994
_diffrn_reflns_Laue_measured_fraction_max 0.988
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            58725
_diffrn_reflns_point_group_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.988
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.427
_diffrn_reflns_theta_min         1.938
_diffrn_source                   'microfocus sealed X-ray tube'
_diffrn_source_type              'Incoatec I\mS microsource'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.655
_exptl_absorpt_correction_T_max  0.7454
_exptl_absorpt_correction_T_min  0.5281
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.0901 before and 0.0571 after correction.
The Ratio of minimum to maximum transmission is 0.7085.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            yellow
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    1.273
_exptl_crystal_description       plate
_exptl_crystal_F_000             2048
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: CH2Cl2'
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.07
_refine_diff_density_max         3.935
_refine_diff_density_min         -2.828
_refine_diff_density_rms         0.167
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.045
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1117
_refine_ls_number_reflns         21930
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.045
_refine_ls_R_factor_all          0.0612
_refine_ls_R_factor_gt           0.0485
_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^)+(0.0849P)^2^+1.6962P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1327
_refine_ls_wR_factor_ref         0.1405
_reflns_Friedel_coverage         0.000
_reflns_number_gt                17400
_reflns_number_total             21930
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1dt00820j2.cif
_cod_data_source_block           st242_dc
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_diffrn_radiation_probe' value 'X-ray' was changed to
'x-ray' in accordance with the
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 7556 2019-12-06 15:28:31Z antanas 

 Adding full bibliography for 7707205--7707218.cif.
;
_cod_database_code               7707209
_shelx_shelxl_version_number     2018/3
_computing.bruker_data_scaling   'SADABS V2012/1 (Bruker AXS Inc.)'
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C00U(H00U), C014(H014), C015(H015), C018(H018), C01A(H01A), C01F(H01F),
 C01H(H01H), C01Q(H01Q), C01R(H01R), C01U(H01U), C01Z(H01Z), C024(H024),
 C025(H025), C028(H028), C029(H029), C02A(H02A), C02C(H02C), C02D(H02D),
 C02E(H02E), C02G(H02G), C02H(H02H), C02I(H02I), C02J(H02J), C02L(H02L),
 C02M(H02M), C02O(H02O), C02P(H02P), C02Q(H02Q), C02R(H02R), C02S(H02S),
 C02U(H02U), C02V(H02V), C02W(H02W), C02Y(H02Y), C02Z(H02Z), C030(H030),
 C031(H031), C032(H032), C033(H033), C034(H034), C035(H035), C036(H036),
 C037(H037), C038(H038), C039(H039), C03B(H03B), C03C(H03C), C03D(H03D),
 C03E(H03E), C03F(H03F), C03H(H03H), C03I(H03I), C03J(H03J), C03K(H03K),
 C03L(H03L), C03M(H03M), C03N(H03N), C03P(H03P), C03Q(H03Q), C03R(H03R),
 C03S(H03S), C03T(H03T), C03U(H03U), C03W(H03W)
;
_smtbx_masks_void_probe_radius   1.2
_smtbx_masks_void_truncation_radius 1.2
_shelx_res_checksum              51551
_shelx_hkl_checksum              60457
_shelx_fab_checksum              81720
_olex2_submission_special_instructions 'No special instructions were received'