Experimental and Computational Studies of the Isomerization Reactions of Bidentate Phosphine Ligands in Triosmium Clusters: Kinetics of the Rearrangements from Bridged to Chelated Isomers and X-ray Structures of the Clusters Os3(CO)10(dppbz), 1,1-Os3(CO)10(dppbzF4), HOs3(CO)9[μ-1,2-PhP(C6H4-η1)C6H4PPh2], and HOs3(CO)9[μ-1,2-PhP(C6H4-η1)C6F4PPh2]
Zhang, Xue; Kandala, Srikanth; Yang, Li; Watson, William H.; Wang, Xiaoping; Hrovat, David A.; Borden, Weston Thatcher; Richmond, Michael G.; Organometallics 30 (2011) 1253–; doi:10.1021/om100783f

data_4063652
_publ_section_title
;
 Experimental and Computational Studies of the Isomerization Reactions of
 Bidentate Phosphine Ligands in Triosmium Clusters: Kinetics of the
 Rearrangements from Bridged to Chelated Isomers and X-ray Structures of
 the Clusters Os3(CO)10(dppbz), 1,1-Os3(CO)10(dppbzF4),
 HOs3(CO)9[\m-1,2-PhP(C6H4-\h1)C6H4PPh2], and
 HOs3(CO)9[\m-1,2-PhP(C6H4-\h1)C6F4PPh2]
;
_journal_issue                   5
_journal_name_full               Organometallics
_journal_page_first              1253
_journal_paper_doi               10.1021/om100783f
_journal_volume                  30
_journal_year                    2011
_chemical_formula_moiety         'C39 H23 O9 Os3 P2, C H2 Cl2'
_chemical_formula_sum            'C40 H26 Cl2 O9 Os3 P2'
_chemical_formula_weight         1353.04
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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            8
_cell_length_a                   21.7445(15)
_cell_length_b                   16.7738(19)
_cell_length_c                   21.9364(19)
_cell_measurement_reflns_used    8377
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.50
_cell_measurement_theta_min      2.409
_cell_volume                     8001.0(13)
_computing_cell_refinement       APEX2
_computing_data_collection       APEX2
_computing_data_reduction        APEX2
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'BRuker SMART APEX II CCD'
_diffrn_measurement_method       '\w scans'
_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  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0726
_diffrn_reflns_limit_h_max       27
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       0
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            14706
_diffrn_reflns_theta_full        26.50
_diffrn_reflns_theta_max         26.50
_diffrn_reflns_theta_min         1.79
_exptl_absorpt_coefficient_mu    9.773
_exptl_absorpt_correction_T_max  0.5917
_exptl_absorpt_correction_T_min  0.2026
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    2.246
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             5040
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.06
_refine_diff_density_max         2.434
_refine_diff_density_min         -2.301
_refine_diff_density_rms         0.192
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.028
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     516
_refine_ls_number_reflns         14832
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      1.032
_refine_ls_R_factor_all          0.0697
_refine_ls_R_factor_gt           0.0388
_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^)+(0.0327P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0748
_refine_ls_wR_factor_ref         0.0805
_reflns_number_gt                10440
_reflns_number_total             14832
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om100783f_si_004.cif
_cod_data_source_block           Compound4
_cod_database_code               4063652