N-Bridged Pincer Iridium Complexes for Highly Efficient Alkane Dehydrogenation and the Relevant Linker Effects
Zhang, Xin; Wu, Song-Bai; Leng, Xuebing; Chung, Lung Wa; Liu, Guixia; Huang, Zheng; ACS Catalysis  (2020) 6475–6487; doi:10.1021/acscatal.0c00539

data_4517715
_publ_section_title
;
 N-Bridged Pincer Iridium Complexes for Highly Efficient Alkane
 Dehydrogenation and the Relevant Linker Effects
;
_journal_name_full               'ACS Catalysis'
_journal_page_first              6475
_journal_page_last               6487
_journal_paper_doi               10.1021/acscatal.0c00539
_journal_year                    2020
_chemical_formula_moiety         'C23 H43 Cl Ir N O P2'
_chemical_formula_sum            'C23 H43 Cl Ir N O P2'
_chemical_formula_weight         639.17
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     direct
_audit_creation_date             2018-03-12
_audit_creation_method
;
Olex2 1.2
(compiled 2017.08.10 svn.r3458 for OlexSys, GUI svn.r5381)
;
_cell_angle_alpha                90
_cell_angle_beta                 100.6140(10)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   31.9259(6)
_cell_length_b                   7.9828(2)
_cell_length_c                   20.1715(4)
_cell_measurement_reflns_used    9283
_cell_measurement_temperature    170(2)
_cell_measurement_theta_max      54.935
_cell_measurement_theta_min      4.191
_cell_volume                     5052.91(19)
_computing_cell_refinement       'SAINT v8.37A (Bruker, 2015)'
_computing_data_reduction        'SAINT v8.37A (Bruker, 2015)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      170.0
_diffrn_measured_fraction_theta_full 0.999
_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           GaK\a
_diffrn_radiation_wavelength     1.34139
_diffrn_reflns_av_R_equivalents  0.0468
_diffrn_reflns_av_unetI/netI     0.0313
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       38
_diffrn_reflns_limit_h_min       -38
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            26956
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        53.594
_diffrn_reflns_theta_max         54.911
_diffrn_reflns_theta_min         4.190
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    8.585
_exptl_absorpt_correction_T_max  0.7508
_exptl_absorpt_correction_T_min  0.3905
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.1425 before and 0.0617 after correction. The Ratio of minimum to maximum transmission is 0.5201. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.680
_exptl_crystal_description       block
_exptl_crystal_F_000             2560
_exptl_crystal_size_max          0.08
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.764
_refine_diff_density_min         -0.741
_refine_diff_density_rms         0.093
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.107
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     279
_refine_ls_number_reflns         4804
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.107
_refine_ls_R_factor_all          0.0258
_refine_ls_R_factor_gt           0.0219
_refine_ls_shift/su_max          0.007
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0036P)^2^+12.0891P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0446
_refine_ls_wR_factor_ref         0.0460
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4405
_reflns_number_total             4804
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            cs0c00539_si_013.cif
_cod_data_source_block           mjl18097_0m
_cod_depositor_comments
'Adding full bibliography for 4517711--4517721.cif.'
_cod_database_code               4517715
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_max   0.783
_shelx_estimated_absorpt_t_min   0.547
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C3(H3), C4(H4), C5(H5)
2.b Idealised Me refined as rotating group:
 C7(H7A,H7B,H7C), C9(H9A,H9B,H9C), C10(H10A,H10B,H10C), C11(H11A,H11B,H11C),
 C13(H13A,H13B,H13C), C14(H14A,H14B,H14C), C15(H15A,H15B,H15C), C17(H17A,H17B,
 H17C), C18(H18A,H18B,H18C), C19(H19A,H19B,H19C), C21(H21A,H21B,H21C), C22(H22A,
 H22B,H22C), C23(H23A,H23B,H23C)
;
_shelx_res_checksum              17245
_shelx_hkl_checksum              95726
_olex2_submission_special_instructions 'No special instructions were received'