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_4517717
_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         'C20 H34 Ir N O P2 S'
_chemical_formula_sum            'C20 H34 Ir N O P2 S'
_chemical_formula_weight         590.68
_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     dual
_audit_creation_date             2018-05-25
_audit_creation_method
;
Olex2 1.2
(compiled 2018.04.26 svn.r3504 for OlexSys, GUI svn.r5492)
;
_cell_angle_alpha                62.959(3)
_cell_angle_beta                 83.152(4)
_cell_angle_gamma                82.770(4)
_cell_formula_units_Z            4
_cell_length_a                   8.1801(6)
_cell_length_b                   17.6065(14)
_cell_length_c                   17.9383(14)
_cell_measurement_reflns_used    9710
_cell_measurement_temperature    170(2)
_cell_measurement_theta_max      55.02
_cell_measurement_theta_min      4.411
_cell_volume                     2277.2(3)
_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    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      169.99
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Bruker D8 Venture'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           GaK\a
_diffrn_radiation_wavelength     1.34139
_diffrn_reflns_av_R_equivalents  0.0519
_diffrn_reflns_av_unetI/netI     0.0522
_diffrn_reflns_Laue_measured_fraction_full 0.994
_diffrn_reflns_Laue_measured_fraction_max 0.991
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            23805
_diffrn_reflns_point_group_measured_fraction_full 0.994
_diffrn_reflns_point_group_measured_fraction_max 0.991
_diffrn_reflns_theta_full        53.594
_diffrn_reflns_theta_max         54.992
_diffrn_reflns_theta_min         4.330
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    9.344
_exptl_absorpt_correction_T_max  0.7508
_exptl_absorpt_correction_T_min  0.3645
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.1266 before and 0.0760 after correction. The Ratio of minimum to maximum transmission is 0.4855. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.723
_exptl_crystal_description       block
_exptl_crystal_F_000             1168
_exptl_crystal_size_max          0.08
_exptl_crystal_size_mid          0.06
_exptl_crystal_size_min          0.05
_refine_diff_density_max         2.823
_refine_diff_density_min         -3.496
_refine_diff_density_rms         0.185
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     487
_refine_ls_number_reflns         8578
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.044
_refine_ls_R_factor_all          0.0462
_refine_ls_R_factor_gt           0.0432
_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^)+(0.0510P)^2^+15.9959P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1155
_refine_ls_wR_factor_ref         0.1182
_reflns_Friedel_coverage         0.000
_reflns_number_gt                7948
_reflns_number_total             8578
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            cs0c00539_si_005.cif
_cod_data_source_block           mjl18221_0m
_cod_depositor_comments
'Adding full bibliography for 4517711--4517721.cif.'
_cod_database_code               4517717
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_max   0.652
_shelx_estimated_absorpt_t_min   0.522
_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 Ternary CH refined with riding coordinates:
 C9(H9), C12(H12), C15(H15), C18(H18), C29(H29), C32(H32), C35(H35), C38(H38)
2.b Aromatic/amide H refined with riding coordinates:
 C4(H4), C5(H5), C6(H6), C24(H24), C25(H25), C26(H26)
2.c Idealised Me refined as rotating group:
 C8(H8A,H8B,H8C), C10(H10A,H10B,H10C), C11(H11A,H11B,H11C), C13(H13A,H13B,
 H13C), C14(H14A,H14B,H14C), C16(H16A,H16B,H16C), C17(H17A,H17B,H17C), C19(H19B,
 H19A,H19C), C20(H20A,H20B,H20C), C28(H28A,H28B,H28C), C30(H30A,H30B,H30C),
 C31(H31A,H31B,H31C), C33(H33A,H33B,H33C), C34(H34A,H34B,H34C), C36(H36A,H36B,
 H36C), C37(H37A,H37B,H37C), C39(H39A,H39B,H39C), C40(H40A,H40B,H40C)
;
_shelx_res_checksum              94716
_shelx_hkl_checksum              76354
_olex2_submission_special_instructions 'No special instructions were received'