Tetrarhena-heterocycle from the Palladium-Catalyzed Dimerization of Re2(CO)8(μ-SbPh2)(μ-H) Exhibits an Unusual Host-Guest Behavior
Richard D. Adams; William C. Pearl; Yuen Onn Wong; Qiang Zhang; Michael B. Hall; Justin R. Walensky; Journal of the American Chemical Society 133 (2011) 12994–12997; doi:10.1021/ja205515u

data_4106642
_publ_section_title
;
 Tetrarhena-heterocycle from the Palladium-Catalyzed Dimerization of
 Re2(CO)8(\m-SbPh2)(\m-H) Exhibits an Unusual Host-Guest Behavior
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              12994
_journal_page_last               12997
_journal_paper_doi               10.1021/ja205515u
_journal_volume                  133
_journal_year                    2011
_chemical_formula_sum            'C43 H25 O16 Pd0.5 Re4 Sb2'
_chemical_formula_weight         1839.13
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           43
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'F 2 -2d'
_symmetry_space_group_name_H-M   'F d d 2'
_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            16
_cell_length_a                   35.2421(15)
_cell_length_b                   52.7954(19)
_cell_length_c                   10.2274(4)
_cell_measurement_reflns_used    5280
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      22.90
_cell_measurement_theta_min      2.31
_cell_volume                     19029.3(13)
_computing_cell_refinement       'SAINT+  V6.45 (Bruker, 2003)'
_computing_data_collection       'SMART V5.632 (Bruker, 2005)'
_computing_data_reduction        'SAINT+  V6.45'
_computing_molecular_graphics    'SHELXTL V6.1 (Sheldrick, 2000)'
_computing_publication_material  'SHELXTL V6.1'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker SMART APEX CCD diffractometer'
_diffrn_measurement_method       'omega 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  0.0841
_diffrn_reflns_av_sigmaI/netI    0.0583
_diffrn_reflns_limit_h_max       41
_diffrn_reflns_limit_h_min       -41
_diffrn_reflns_limit_k_max       62
_diffrn_reflns_limit_k_min       -62
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            51173
_diffrn_reflns_theta_full        25.03
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         1.39
_diffrn_standards_decay_%        <1
_exptl_absorpt_coefficient_mu    11.506
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.853
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS, Bruker, 1997)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    2.568
_exptl_crystal_description       block
_exptl_crystal_F_000             13376
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.06
_refine_diff_density_max         1.028
_refine_diff_density_min         -0.797
_refine_diff_density_rms         0.170
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.009(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     566
_refine_ls_number_reflns         8393
_refine_ls_number_restraints     15
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0446
_refine_ls_R_factor_gt           0.0356
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0235P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0660
_refine_ls_wR_factor_ref         0.0692
_reflns_number_gt                7447
_reflns_number_total             8393
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja205515u_si_002_3.cif
_cod_data_source_block           7
_cod_original_formula_sum        'C43 H25 O16 Pd0.50 Re4 Sb2'
_cod_database_code               4106642