Unbridged Rh(ii)-Rh(ii) complexes of N-heterocyclic carbenes and reactions with O<sub>2</sub> to form dirhodium(μ-η<sup>1</sup>:η<sup>1</sup>-O<sub>2</sub>) complexes.
Yi, Xiaofei; Liu, Bin; Chen, Kai; Chen, Wei; Chen, Wanzhi; Dalton transactions (Cambridge, England : 2003) 48 (2019) 3835–3839; doi:10.1039/c9dt00421a

data_7049118
_publ_section_title
;
 Unbridged Rh(ii)-Rh(ii) complexes of N-heterocyclic carbenes and
 reactions with O<sub>2</sub> to form
 dirhodium(\m-\h<sup>1</sup>:\h<sup>1</sup>-O<sub>2</sub>) complexes.
;
_journal_issue                   12
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              3835
_journal_page_last               3839
_journal_paper_doi               10.1039/c9dt00421a
_journal_volume                  48
_journal_year                    2019
_chemical_formula_moiety
'C42 H40 N16 Rh2, 4(F6 P), C4 H10 O, 3(C2 H3 N)'
_chemical_formula_sum            'C52 H59 F24 N19 O P4 Rh2'
_chemical_formula_weight         1751.88
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2019-02-20 deposited with the CCDC.    2019-02-21 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 103.647(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   19.0638(6)
_cell_length_b                   15.4706(5)
_cell_length_c                   26.2772(9)
_cell_measurement_reflns_used    8055
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      29.5021
_cell_measurement_theta_min      3.0002
_cell_volume                     7531.1(4)
_computing_cell_refinement       'Bruker FRAMBO'
_computing_data_collection       'Bruker FRAMBO'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.843
_diffrn_measurement_device_type  'Xcalibur, Atlas, Gemini ultra'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0378
_diffrn_reflns_av_unetI/netI     0.0674
_diffrn_reflns_Laue_measured_fraction_full 0.992
_diffrn_reflns_Laue_measured_fraction_max 0.843
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            33953
_diffrn_reflns_point_group_measured_fraction_full 0.992
_diffrn_reflns_point_group_measured_fraction_max 0.843
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         29.567
_diffrn_reflns_theta_min         3.006
_exptl_absorpt_coefficient_mu    0.632
_exptl_absorpt_correction_T_max  0.7842
_exptl_absorpt_correction_T_min  0.7490
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.545
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             3512
_exptl_crystal_size_max          0.48
_exptl_crystal_size_mid          0.46
_exptl_crystal_size_min          0.40
_refine_diff_density_max         2.000
_refine_diff_density_min         -0.923
_refine_diff_density_rms         0.140
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.034
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     954
_refine_ls_number_reflns         17813
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.035
_refine_ls_R_factor_all          0.1063
_refine_ls_R_factor_gt           0.0710
_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^)+(0.1063P)^2^+22.1028P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1860
_refine_ls_wR_factor_ref         0.2198
_reflns_Friedel_coverage         0.000
_reflns_number_gt                12406
_reflns_number_total             17813
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9dt00421a2.cif
_cod_data_source_block           160511_yxf160425C
_cod_depositor_comments
'Adding full bibliography for 7049117--7049121.cif.'
_cod_database_code               7049118
_shelx_shelxl_version_number     2018/3
_shelx_res_checksum              56014