Osmium(II)‒Bis(dihydrogen) Complexes ContainingCaryl,CNHC‒Chelate Ligands: Preparation, Bonding Situation, and Acidity
Bolaño, Tamara; Esteruelas, Miguel A.; Fernández, Israel; Oñate, Enrique; Palacios, Adrián; Tsai, Jui-Yi; Xia, Chuanjun; Organometallics 34 (2015) 778–; doi:10.1021/om501275c

data_4085581
_publ_section_title
;
 Osmium(II)--Bis(dihydrogen) Complexes ContainingCaryl,CNHC--Chelate
 Ligands: Preparation, Bonding Situation, and Acidity
;
_journal_issue                   4
_journal_name_full               Organometallics
_journal_page_first              778
_journal_paper_doi               10.1021/om501275c
_journal_volume                  34
_journal_year                    2015
_chemical_formula_sum            'C32 H56 N2 Os P2'
_chemical_formula_weight         720.93
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 99.266(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.4244(18)
_cell_length_b                   18.294(4)
_cell_length_c                   19.003(4)
_cell_measurement_reflns_used    9980
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28
_cell_measurement_theta_min      2
_cell_volume                     3233.6(12)
_computing_cell_refinement       'SAINT+ v. 7.56a (Bruker AXS, 2008)'
_computing_data_collection       'apex2 v. 7.0 (Bruker AXS, 2009)'
_computing_data_reduction        'SAINT+ v. 7.56a (Bruker AXS, 2008)'
_computing_molecular_graphics    'XP, SHELXTL v. 6.14 (Bruker, 2000)'
_computing_publication_material  'XCIF, SHELXTL v. 6.14 (Bruker, 2000)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.26
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.922
_diffrn_measurement_device_type  'Bruker APEX DUO system'
_diffrn_measurement_method       '\w rotations with narrow frames'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0237
_diffrn_reflns_av_sigmaI/netI    0.0281
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            21934
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         28.87
_diffrn_reflns_theta_min         1.55
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    4.065
_exptl_absorpt_correction_T_max  0.862
_exptl_absorpt_correction_T_min  0.694
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
Absorption correction performed with SADABS program. This is based on the
method of Blessing: Blessing, R. H., Acta Crystallogr., Sect. A 1995, 51, 33.

SADABS: Area-Detector Absorption Correction. Bruker-AXS 
within SAINT+ package, v. 6.1 (2000).
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.481
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'irregular block'
_exptl_crystal_F_000             1472
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.11
_refine_diff_density_max         1.388
_refine_diff_density_min         -0.721
_refine_diff_density_rms         0.091
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.040
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     352
_refine_ls_number_reflns         7819
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.0291
_refine_ls_R_factor_gt           0.0221
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0248P)^2^+0.8750P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0499
_refine_ls_wR_factor_ref         0.0522
_reflns_number_gt                6759
_reflns_number_total             7819
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om501275c_si_001.cif
_cod_data_source_block           2-enriquen38
_cod_original_cell_volume        3233.6(11)
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               4085581
_shelx_f_squared_multiplier      1.000