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_4517712
_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         'C21 H36 Ir N O2 P2'
_chemical_formula_sum            'C21 H36 Ir N O2 P2'
_chemical_formula_weight         588.65
_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   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2018-04-17
_audit_creation_method
;
Olex2 1.2
(compiled 2018.04.03 svn.r3497 for OlexSys, GUI svn.r5486)
;
_cell_angle_alpha                90
_cell_angle_beta                 113.602(3)
_cell_angle_gamma                90
_cell_formula_units_Z            16
_cell_length_a                   36.270(2)
_cell_length_b                   7.8548(4)
_cell_length_c                   36.2929(17)
_cell_measurement_reflns_used    9465
_cell_measurement_temperature    170(2)
_cell_measurement_theta_max      54.568
_cell_measurement_theta_min      4.266
_cell_volume                     9474.7(9)
_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      170.01
_diffrn_measured_fraction_theta_full 0.980
_diffrn_measured_fraction_theta_max 0.972
_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  0.0977
_diffrn_reflns_av_unetI/netI     0.0814
_diffrn_reflns_Laue_measured_fraction_full 0.980
_diffrn_reflns_Laue_measured_fraction_max 0.972
_diffrn_reflns_limit_h_max       41
_diffrn_reflns_limit_h_min       -44
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       44
_diffrn_reflns_limit_l_min       -42
_diffrn_reflns_number            36642
_diffrn_reflns_point_group_measured_fraction_full 0.980
_diffrn_reflns_point_group_measured_fraction_max 0.972
_diffrn_reflns_theta_full        53.594
_diffrn_reflns_theta_max         55.119
_diffrn_reflns_theta_min         3.872
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    8.479
_exptl_absorpt_correction_T_max  0.7508
_exptl_absorpt_correction_T_min  0.4572
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.1308 before and 0.0942 after correction. The Ratio of minimum to maximum transmission is 0.6518. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.651
_exptl_crystal_description       block
_exptl_crystal_F_000             4672
_exptl_crystal_size_max          0.1
_exptl_crystal_size_mid          0.03
_exptl_crystal_size_min          0.02
_refine_diff_density_max         2.133
_refine_diff_density_min         -1.297
_refine_diff_density_rms         0.217
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.032
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     505
_refine_ls_number_reflns         8847
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.032
_refine_ls_R_factor_all          0.1108
_refine_ls_R_factor_gt           0.0708
_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^)+(0.0437P)^2^+409.0915P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1439
_refine_ls_wR_factor_ref         0.1670
_reflns_Friedel_coverage         0.000
_reflns_number_gt                6205
_reflns_number_total             8847
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            cs0c00539_si_011.cif
_cod_data_source_block           mjl18140_0m
_cod_depositor_comments
'Adding full bibliography for 4517711--4517721.cif.'
_cod_original_cell_volume        9474.6(9)
_cod_database_code               4517712
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_max   0.849
_shelx_estimated_absorpt_t_min   0.484
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C10(H10), C13(H13), C16(H16), C19(H19), C31(H31), C34(H34), C37(H37), C40(H40)
2.b Secondary CH2 refined with riding coordinates:
 C8(H8A,H8B), C29(H29A,H29B)
2.c Aromatic/amide H refined with riding coordinates:
 C4(H4), C5(H5), C6(H6), C25(H25), C26(H26), C27(H27)
2.d Idealised Me refined as rotating group:
 C9(H9A,H9B,H9C), C11(H11A,H11B,H11C), C12(H12A,H12B,H12C), C14(H14A,H14B,
 H14C), C15(H15A,H15B,H15C), C17(H17A,H17B,H17C), C18(H18A,H18B,H18C), C20(H20A,
 H20B,H20C), C21(H21A,H21B,H21C), C30(H30A,H30B,H30C), C32(H32A,H32B,H32C),
 C33(H33A,H33B,H33C), C35(H35A,H35B,H35C), C36(H36A,H36B,H36C), C38(H38A,H38B,
 H38C), C39(H39A,H39B,H39C), C41(H41A,H41B,H41C), C42(H42A,H42B,H42C)
;
_shelx_res_checksum              80783
_shelx_hkl_checksum              28649
_olex2_submission_special_instructions 'No special instructions were received'