Rhodium Complexes of a Chelating Ligand with Imidazol-2-ylidene and Pyridin-2-ylidene Donors: The Effect of C-Metalation of Nicotinamide Groups on Uptake of Hydride Ion
Alex McSkimming; Graham E. Ball; Mohan M. Bhadbhade; Stephen B. Colbran; Inorganic Chemistry 51 (2012) 2191–2203; doi:10.1021/ic202164v

data_4328325
_publ_section_title
;
 Rhodium Complexes of a Chelating Ligand with Imidazol-2-ylidene and
 Pyridin-2-ylidene Donors: The Effect of C-Metalation of Nicotinamide
 Groups on Uptake of Hydride Ion
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              2191
_journal_page_last               2203
_journal_paper_doi               10.1021/ic202164v
_journal_volume                  51
_journal_year                    2012
_chemical_formula_sum            'C38.5 H54 Cl I2 N8 O7.5 Rh2'
_chemical_formula_weight         1243.97
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 91.592(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.706(3)
_cell_length_b                   13.5868(17)
_cell_length_c                   23.595(4)
_cell_measurement_reflns_used    237
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      18.696
_cell_measurement_theta_min      2.990
_cell_volume                     5033.1(14)
_computing_cell_refinement       '<i>APEX2 </i>(Bruker, 2007)'
_computing_data_collection       '<i>APEX2 </i>(Bruker, 2007)'
_computing_data_reduction        '<i>APEX2 </i>(Bruker, 2007)'
_computing_molecular_graphics    '<i>SHELXTL-Plus</i> (Sheldrick, 2008)'
_computing_structure_refinement  '<i>SHELXL-97</i> (Sheldrick, 2008)'
_computing_structure_solution    '<i>SHELXS-97</i> (Sheldrick, 2008)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.952
_diffrn_measured_fraction_theta_max 0.952
_diffrn_measurement_device_type  'Bruker kappa APEXII CCD Diffractometer'
_diffrn_measurement_method       '\f scans, and \w scans with \k offsets'
_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  0.1468
_diffrn_reflns_av_sigmaI/netI    0.2485
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            15691
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.99
_exptl_absorpt_coefficient_mu    1.986
_exptl_absorpt_correction_T_max  0.9708
_exptl_absorpt_correction_T_min  0.7643
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2001)'
_exptl_crystal_colour            Orange
_exptl_crystal_density_diffrn    1.642
_exptl_crystal_description       'Thin plates'
_exptl_crystal_F_000             2456
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.02
_refine_diff_density_max         1.644
_refine_diff_density_min         -0.933
_refine_diff_density_rms         0.181
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.954
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     539
_refine_ls_number_reflns         8437
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      0.955
_refine_ls_R_factor_all          0.2338
_refine_ls_R_factor_gt           0.0836
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0868P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1772
_refine_ls_wR_factor_ref         0.2457
_reflns_number_gt                3113
_reflns_number_total             8437
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic202164v_si_005.cif
_cod_data_source_block           alex7p21byc
_cod_original_cell_volume        5033.3(14)
_cod_original_formula_sum        'C38.50 H54 Cl I2 N8 O7.50 Rh2'
_cod_database_code               4328325