Flexible coordination of bulky amidinates and guanidinates towards rhodium(i): conversion of kinetic to thermodymanic isomers
Jones, Cameron; Mills, David P.; Stasch, Andreas; Dalton Transactions  (2008) 4799–4804; doi:10.1039/b806542j

data_7004394
_publ_section_title
;
 Flexible coordination of bulky amidinates and guanidinates towards
 rhodium(i): conversion of kinetic to thermodymanic isomers
;
_journal_issue                   35
_journal_name_full               'Dalton Transactions'
_journal_page_first              4799
_journal_page_last               4804
_journal_paper_doi               10.1039/b806542j
_journal_year                    2008
_chemical_formula_sum            'C36 H60 O4 Rh4 Si2'
_chemical_formula_weight         1024.66
_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                111.7230(10)
_cell_angle_beta                 97.0880(10)
_cell_angle_gamma                97.2930(10)
_cell_formula_units_Z            4
_cell_length_a                   11.7331(2)
_cell_length_b                   18.5200(3)
_cell_length_c                   19.0441(3)
_cell_measurement_temperature    123(2)
_cell_volume                     3747.50(11)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.982
_diffrn_measured_fraction_theta_max 0.982
_diffrn_measurement_device_type  'Bruker X8 CCD'
_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  0.0315
_diffrn_reflns_av_sigmaI/netI    0.0542
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            36903
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.20
_exptl_absorpt_coefficient_mu    1.832
_exptl_absorpt_correction_T_max  0.710
_exptl_absorpt_correction_T_min  0.621
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SABABS (Blessing, 1995)'
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.816
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2064
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.874
_refine_diff_density_min         -0.767
_refine_diff_density_rms         0.140
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.139
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     837
_refine_ls_number_reflns         16908
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.139
_refine_ls_R_factor_all          0.0508
_refine_ls_R_factor_gt           0.0414
_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^)+(0.0109P)^2^+7.8121P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0749
_refine_ls_wR_factor_ref         0.0819
_reflns_number_gt                14607
_reflns_number_total             16908
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b806542j.txt
_cod_data_source_block           '[{Rh(COD)}4(O2SiMe2)2]'
_cod_original_cell_volume        3747.49(11)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7004394