Dioxygen Activation by an Osmium-dihydride: Preparation and Characterization of a d4 Square-Planar Complex
Miguel A. Esteruelas; Francisco J. Modrego; Enrique Oñate; Eva Royo; Journal of the American Chemical Society 125 (2003) 13344–13345; doi:10.1021/ja037484u

data_4114323
_publ_contact_author
;
  Dr. Enrique O\~nate Rodr\'iguez
  Departamento de Qu\'imica Inorg\'anica - I.C.M.A.
  Facultad de Ciencias
  Universidad de Zaragoza - C.S.I.C.
  50009 Zaragoza, Spain
;
_publ_contact_author_email       enriqueo@posta.unizar.es
_publ_section_title
;
 Dioxygen Activation by an Osmium-dihydride: Preparation and
 Characterization of a d4 Square-Planar Complex
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              13344
_journal_page_last               13345
_journal_paper_doi               10.1021/ja037484u
_journal_volume                  125
_journal_year                    2003
_chemical_formula_moiety         '(C18 H42 O2 Os P2)'
_chemical_formula_sum            'C18 H42 O2 Os P2'
_chemical_formula_weight         542.66
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                99.115(3)
_cell_angle_beta                 90.767(3)
_cell_angle_gamma                100.417(3)
_cell_formula_units_Z            1
_cell_length_a                   7.7796(15)
_cell_length_b                   7.8028(15)
_cell_length_c                   9.2994(18)
_cell_measurement_reflns_used    844
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27
_cell_measurement_theta_min      2.5
_cell_volume                     547.67(18)
_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 0.910
_diffrn_measured_fraction_theta_max 0.910
_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  0.0303
_diffrn_reflns_av_sigmaI/netI    0.0461
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            6618
_diffrn_reflns_theta_full        28.53
_diffrn_reflns_theta_max         28.53
_diffrn_reflns_theta_min         2.22
_diffrn_standards_decay_%        'no decay'
_exptl_absorpt_coefficient_mu    5.974
_exptl_absorpt_correction_T_max  0.593
_exptl_absorpt_correction_T_min  0.397
_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            yellow
_exptl_crystal_density_diffrn    1.645
_exptl_crystal_description       'irregular prism'
_exptl_crystal_F_000             272
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.06
_refine_diff_density_max         1.314
_refine_diff_density_min         -0.693
_refine_diff_density_rms         0.133
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.000
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     112
_refine_ls_number_reflns         2543
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.000
_refine_ls_R_factor_all          0.0231
_refine_ls_R_factor_gt           0.0231
_refine_ls_shift/su_max          0.007
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0211P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0485
_refine_ls_wR_factor_ref         0.0485
_reflns_number_gt                2542
_reflns_number_total             2543
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja037484usi20030723_054410_1.cif
_cod_data_source_block           mae97a1s
_cod_database_code               4114323