Synthesis and Crystallographic Characterization of Heteroleptic Ir(III) Complexes Containing the N-oxide Functional Group and Crystallographic Characterization of Ir(III) N-oxide Precursors
Stumbo, Emily E.; Hodge, Emarald K.; Williams, Matthew; Thornton, Diana A.; McMillen, Colin D.; Pienkos, Jared A.; Crystals 14 (2024) 281–; doi:10.3390/cryst14030281

data_1571388
_publ_section_title
;
 Synthesis and Crystallographic Characterization of Heteroleptic Ir(III)
 Complexes Containing the N-oxide Functional Group and Crystallographic
 Characterization of Ir(III) N-oxide Precursors
;
_journal_issue                   3
_journal_name_full               Crystals
_journal_page_first              281
_journal_paper_doi               10.3390/cryst14030281
_journal_volume                  14
_journal_year                    2024
_chemical_absolute_configuration ad
_chemical_formula_sum            'C30 H25 Cl4 Ir N4 O2'
_chemical_formula_weight         807.54
_space_group_crystal_system      monoclinic
_space_group_IT_number           4
_space_group_name_Hall           'P 2yb'
_space_group_name_H-M_alt        'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2016/6
_cell_angle_alpha                90
_cell_angle_beta                 91.347(2)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   9.3682(6)
_cell_length_b                   16.9395(10)
_cell_length_c                   9.4088(5)
_cell_measurement_reflns_used    9719
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30.05
_cell_measurement_theta_min      3.03
_cell_volume                     1492.69(15)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX3'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_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 0.994
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker D8 Venture Photon 2'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0370
_diffrn_reflns_av_unetI/netI     0.0406
_diffrn_reflns_Laue_measured_fraction_full 0.994
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            33335
_diffrn_reflns_point_group_measured_fraction_full 0.980
_diffrn_reflns_point_group_measured_fraction_max 0.984
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         30.060
_diffrn_reflns_theta_min         2.175
_diffrn_source                   'Incoatec I\mS'
_exptl_absorpt_coefficient_mu    4.866
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.6193
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS, Bruker'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.797
_exptl_crystal_description       block
_exptl_crystal_F_000             788
_exptl_crystal_size_max          0.223
_exptl_crystal_size_mid          0.209
_exptl_crystal_size_min          0.165
_refine_diff_density_max         0.769
_refine_diff_density_min         -0.699
_refine_diff_density_rms         0.088
_refine_ls_abs_structure_details
;
 Flack x determined using 3864 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.015(3)
_refine_ls_extinction_coef       0.0052(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2016/6 (Sheldrick 2016)'
_refine_ls_goodness_of_fit_ref   0.946
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     372
_refine_ls_number_reflns         8622
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      0.946
_refine_ls_R_factor_all          0.0175
_refine_ls_R_factor_gt           0.0164
_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^)] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0376
_refine_ls_wR_factor_ref         0.0396
_reflns_Friedel_coverage         0.919
_reflns_Friedel_fraction_full    0.965
_reflns_Friedel_fraction_max     0.973
_reflns_number_gt                8372
_reflns_number_total             8622
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            Ir-NO-NN-combined-CIF.cif
_cod_data_source_block           4
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               1571388
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_min   0.410
_shelx_estimated_absorpt_t_max   0.501
_shelx_res_checksum              41652
_shelx_hkl_checksum              29963