Preparation and Characterization of Novel Os−Diolefin Dimers: New Entry to Os−Cyclooctadiene Complexes
Esteruelas, Miguel A.; García-Yebra, Cristina; Oliván, Montserrat; Oñate, Enrique; Inorganic Chemistry 45 (2006) 10162–10171; doi:10.1021/ic0612799

data_4333019
_publ_section_title
;
 Preparation and Characterization of Novel Os&#x2212;Diolefin
 Dimers:&#x00A0; New Entry to Os&#x2212;Cyclooctadiene Complexes
;
_journal_issue                   25
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              10162
_journal_page_last               10171
_journal_paper_doi               10.1021/ic0612799
_journal_volume                  45
_journal_year                    2006
_chemical_formula_sum            'C28 H37 Cl4 Os2'
_chemical_formula_weight         895.78
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 90.322(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.8680(15)
_cell_length_b                   15.263(2)
_cell_length_c                   16.438(2)
_cell_measurement_reflns_used    916
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      26
_cell_measurement_theta_min      2
_cell_volume                     2726.7(6)
_computing_cell_refinement       'SAINT+ v. 6.02 (Bruker AXS, 1999)'
_computing_data_collection       'SMART v. 5.625 (Bruker AXS, 2000)'
_computing_data_reduction        'SAINT+ v. 6.02 (Bruker AXS, 1999)'
_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      173(2)
_diffrn_detector_area_resol_mean 8.26
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.939
_diffrn_measurement_device_type  'Bruker SMART APEX CCD system'
_diffrn_measurement_method       '\w rotations with narrow frames'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0631
_diffrn_reflns_av_sigmaI/netI    0.0621
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            33757
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         28.95
_diffrn_reflns_theta_min         1.82
_diffrn_standards_decay_%        'no decay'
_exptl_absorpt_coefficient_mu    9.720
_exptl_absorpt_correction_T_max  0.389
_exptl_absorpt_correction_T_min  0.207
_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.
;
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    2.182
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'irregular block'
_exptl_crystal_F_000             1700
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.08
_refine_diff_density_max         2.127
_refine_diff_density_min         -1.005
_refine_diff_density_rms         0.208
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.958
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     333
_refine_ls_number_reflns         6776
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.958
_refine_ls_R_factor_all          0.0478
_refine_ls_R_factor_gt           0.0340
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0195P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0599
_refine_ls_wR_factor_ref         0.0631
_reflns_number_gt                5563
_reflns_number_total             6776
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic0612799sup1.cif
_cod_data_source_block           mae178as
_cod_database_code               4333019