Cooperative borane activation by tuning hemilability of different Os-κ<sup>2</sup>-<i>N</i>,<i>Se</i>-chelated complexes.
Assanar, Faneesha; Gayen, Sourav; Patel, Deepak Kumar; Pradeep, Thalappil; Ghosh, Sundargopal; Chemical science 17 (2026) 3129–3140; doi:10.1039/d5sc06346a

data_1576477
_publ_section_title
;
 Cooperative borane activation by tuning hemilability of different
 Os-&#x3ba;<sup>2</sup>-<i>N</i>,<i>Se</i>-chelated complexes.
;
_journal_issue                   6
_journal_name_full               'Chemical science'
_journal_page_first              3129
_journal_page_last               3140
_journal_paper_doi               10.1039/d5sc06346a
_journal_volume                  17
_journal_year                    2026
_chemical_formula_moiety         'C28 H33 B4 N2 Os P Se2'
_chemical_formula_sum            'C28 H33 B4 N2 Os P Se2'
_chemical_formula_weight         819.89
_space_group_crystal_system      orthorhombic
_space_group_IT_number           33
_space_group_name_Hall           'P 2c -2n'
_space_group_name_H-M_alt        'P n a 21'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     geom
_audit_creation_method           SHELXL-2019/3
_audit_update_record
;
2025-11-19 deposited with the CCDC.	2025-11-26 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   15.3411(5)
_cell_length_b                   9.6807(3)
_cell_length_c                   20.0705(5)
_cell_measurement_reflns_used    9981
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.31
_cell_measurement_theta_min      2.37
_cell_volume                     2980.72(15)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX6'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2019/2 (Sheldrick, 2019)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker D8 Venture'
_diffrn_measurement_method       '/f and /w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1129
_diffrn_reflns_av_unetI/netI     0.0398
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            110256
_diffrn_reflns_point_group_measured_fraction_full 0.991
_diffrn_reflns_point_group_measured_fraction_max 0.989
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.000
_diffrn_reflns_theta_min         2.336
_diffrn_source                   'microfocus sealed tube'
_exptl_absorpt_coefficient_mu    6.795
_exptl_absorpt_correction_T_max  0.346
_exptl_absorpt_correction_T_min  0.287
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
Krause, L., Herbst-Irmer, R., Sheldrick, G. M., Stalke, D. (2015).
"Comparison of silver and molybdenum microfocus X-ray sources for single-crystal
 structure determination"
J. Appl. Cryst. 48, 3-10.
doi:10.1107/S1600576714022985
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.827
_exptl_crystal_description       block
_exptl_crystal_F_000             1576
_exptl_crystal_size_max          0.245
_exptl_crystal_size_mid          0.225
_exptl_crystal_size_min          0.198
_exptl_transmission_factor_max   0.7422
_exptl_transmission_factor_min   0.6726
_refine_diff_density_max         0.495
_refine_diff_density_min         -0.618
_refine_diff_density_rms         0.083
_refine_ls_abs_structure_details
;
 Flack x determined using 2394 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.010(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     373
_refine_ls_number_reflns         5802
_refine_ls_number_restraints     7
_refine_ls_restrained_S_all      1.038
_refine_ls_R_factor_all          0.0261
_refine_ls_R_factor_gt           0.0218
_refine_ls_shift/su_max          0.012
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0106P)^2^+1.1123P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0433
_refine_ls_wR_factor_ref         0.0449
_reflns_Friedel_coverage         0.922
_reflns_Friedel_fraction_full    0.981
_reflns_Friedel_fraction_max     0.979
_reflns_number_gt                5341
_reflns_number_total             5802
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5sc06346a2.cif
_cod_data_source_block           shelx
_cod_database_code               1576477
_shelx_shelxl_version_number     2019/3
_exptl_absorpt_special_details
;
Additional spherical absorption correction applied with mu*r =  0.2000
;
_shelx_res_checksum              78653