Radical and Non-Radical States of the [Os(PIQ)] Core (PIQ = 9,10-Phenanthreneiminoquinone): Iminosemiquinone to Iminoquinone Conversion Promoted o-Metalation Reaction.
Bera, Sachinath; Mondal, Sandip; Maity, Suvendu; Weyhermüller, Thomas; Ghosh, Prasanta; Inorganic chemistry 55 (2016) 4746–4756; doi:10.1021/acs.inorgchem.6b00040

data_4347338
_publ_section_title
;
 Radical and Non-Radical States of the [Os(PIQ)] Core (PIQ =
 9,10-Phenanthreneiminoquinone): Iminosemiquinone to Iminoquinone
 Conversion Promoted o-Metalation Reaction.
;
_journal_issue                   10
_journal_name_full               'Inorganic chemistry'
_journal_page_first              4746
_journal_page_last               4756
_journal_paper_doi               10.1021/acs.inorgchem.6b00040
_journal_volume                  55
_journal_year                    2016
_chemical_formula_sum            'C50 H36 Br2 Cl2 N O Os P2'
_chemical_formula_weight         1149.66
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.2183(6)
_cell_length_b                   16.9966(8)
_cell_length_c                   19.7511(10)
_cell_measurement_reflns_used    9544
_cell_measurement_temperature    273(2)
_cell_measurement_theta_max      27.91
_cell_measurement_theta_min      2.84
_cell_volume                     4437.4(4)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      273(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0425
_diffrn_reflns_av_unetI/netI     0.0324
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            68386
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.995
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.929
_diffrn_reflns_theta_min         2.207
_diffrn_source                   Mo
_exptl_absorpt_coefficient_mu    4.906
_exptl_absorpt_correction_T_max  0.495
_exptl_absorpt_correction_T_min  0.390
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.721
_exptl_crystal_description       Prism
_exptl_crystal_F_000             2244
_exptl_crystal_size_max          0.230
_exptl_crystal_size_mid          0.170
_exptl_crystal_size_min          0.150
_refine_diff_density_max         2.505
_refine_diff_density_min         -2.692
_refine_diff_density_rms         0.305
_refine_ls_abs_structure_details
;
 Flack x determined using 4178 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.008(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.080
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     532
_refine_ls_number_reflns         10605
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.080
_refine_ls_R_factor_all          0.0553
_refine_ls_R_factor_gt           0.0461
_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^)+(0.1003P)^2^+12.5238P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1320
_refine_ls_wR_factor_ref         0.1487
_reflns_Friedel_coverage         0.813
_reflns_Friedel_fraction_full    0.997
_reflns_Friedel_fraction_max     0.994
_reflns_number_gt                9753
_reflns_number_total             10605
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            6.cif
_cod_data_source_block           6
_cod_database_code               4347338
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.398
_shelx_estimated_absorpt_t_max   0.527
_shelx_res_checksum              86004
_shelx_hkl_checksum              47917