Chiral Organometallic Triangles with Rh-Rh Bonds. 2. Compounds Prepared from Enantiopure cis-Rh2(C6H4PPh2)2(OAc)2(HOAc)2 and Their Catalytic Potentials
F. Albert Cotton; Carlos A. Murillo; Salah E. Stiriba; Xiaoping Wang; Rongmin Yu; Inorganic Chemistry 44 (2005) 8223–8233; doi:10.1021/ic051282c

data_4310005
_publ_section_title
;
Chiral Organometallic Triangles with Rh-Rh Bonds. 2. Compounds Prepared
from Enantiopure cis-Rh2(C6H4PPh2)2(OAc)2(HOAc)2 and Their Catalytic
Potentials
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              8223
_journal_page_last               8233
_journal_paper_doi               10.1021/ic051282c
_journal_volume                  44
_journal_year                    2005
_chemical_formula_moiety         'C44 H42 O8 P2 Rh2'
_chemical_formula_sum            'C44 H42 O8 P2 Rh2'
_chemical_formula_weight         966.54
_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                   10.667(3)
_cell_length_b                   15.152(4)
_cell_length_c                   25.053(6)
_cell_measurement_reflns_used    7008
_cell_measurement_temperature    213(2)
_cell_measurement_theta_max      25.55
_cell_measurement_theta_min      2.52
_cell_volume                     4049.2(18)
_computing_cell_refinement       SANIT
_computing_data_collection       SAMRT
_computing_data_reduction        SANIT
_computing_molecular_graphics    'SHELXTL(Siemens, 1996)'
_computing_publication_material  CIFTAB
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      213(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker SMART 1000'
_diffrn_measurement_method       '\w Scans'
_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  0.0180
_diffrn_reflns_av_sigmaI/netI    0.0228
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            25881
_diffrn_reflns_theta_full        27.55
_diffrn_reflns_theta_max         27.55
_diffrn_reflns_theta_min         2.08
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.948
_exptl_absorpt_correction_T_max  0.7642
_exptl_absorpt_correction_T_min  0.7451
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            purple
_exptl_crystal_density_diffrn    1.585
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1960
_exptl_crystal_size_max          0.33
_exptl_crystal_size_mid          0.33
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.374
_refine_diff_density_min         -0.262
_refine_diff_density_rms         0.051
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.023(13)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.073
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     507
_refine_ls_number_reflns         9276
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.073
_refine_ls_R_factor_all          0.0198
_refine_ls_R_factor_gt           0.0184
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0252P)^2^+0.3841P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0456
_refine_ls_wR_factor_ref         0.0466
_reflns_number_gt                8948
_reflns_number_total             9276
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic051282csi20050729_010330_02.cif
_cod_data_source_block           R1
_cod_original_cell_volume        4049.3(17)
_cod_database_code               4310005