Coordination and Rupture of Methyl C(sp3)−H Bonds in Osmium−Polyhydride Complexes with δ Agostic Interaction
Baya, Miguel; Eguillor, Beatriz; Esteruelas, Miguel A.; Lledós, Agustí; Oliván, Montserrat; Oñate, Enrique; Organometallics 26 (2007) 5140–; doi:10.1021/om700509d

data_4073652
_publ_section_title
;
 Coordination and Rupture of Methyl C(sp3)&#x2212;H Bonds in
 Osmium&#x2212;Polyhydride Complexes with \d Agostic Interaction
;
_journal_issue                   21
_journal_name_full               Organometallics
_journal_page_first              5140
_journal_paper_doi               10.1021/om700509d
_journal_volume                  26
_journal_year                    2007
_chemical_formula_sum            'C25 H53 B F4 N2 Os P2'
_chemical_formula_weight         720.64
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.0743(17)
_cell_length_b                   15.241(2)
_cell_length_c                   16.790(2)
_cell_measurement_reflns_used    8175
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      21
_cell_measurement_theta_min      2
_cell_volume                     3089.8(7)
_computing_cell_refinement       'SAINT+ v. 6.1 (Bruker AXS, 2000)'
_computing_data_collection       'SMART v. 5.625 (Bruker AXS, 2000)'
_computing_data_reduction        'SAINT+ v. 6.1 (Bruker AXS, 2000)'
_computing_molecular_graphics    'XP, SHELXTL v. 6.1 (Bruker, 2000)'
_computing_publication_material  'XCIF, SHELXTL v. 6.1 (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 0.999
_diffrn_measured_fraction_theta_max 0.950
_diffrn_measurement_device_type  'Bruker SMART APEX CCD 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  0.0483
_diffrn_reflns_av_sigmaI/netI    0.0646
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            39087
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         28.99
_diffrn_reflns_theta_min         1.80
_diffrn_standards_decay_%        'no decay'
_exptl_absorpt_coefficient_mu    4.271
_exptl_absorpt_correction_T_max  0.648
_exptl_absorpt_correction_T_min  0.554
_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            orange
_exptl_crystal_density_diffrn    1.549
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1456
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.12
_refine_diff_density_max         1.609
_refine_diff_density_min         -0.670
_refine_diff_density_rms         0.103
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.000(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.927
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     335
_refine_ls_number_reflns         7661
_refine_ls_number_restraints     29
_refine_ls_restrained_S_all      0.950
_refine_ls_R_factor_all          0.0469
_refine_ls_R_factor_gt           0.0350
_refine_ls_shift/su_max          3.180
_refine_ls_shift/su_mean         0.010
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0267P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0650
_refine_ls_wR_factor_ref         0.0669
_reflns_number_gt                6123
_reflns_number_total             7661
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om700509d-file001.cif
_cod_data_source_block           mae197as
_cod_original_cell_volume        3089.6(8)
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               4073652