Synthesis and Structural Characterization of Sm(II) and Yb(II) Complexes Containing Sterically Demanding, Chelating Secondary Phosphide Ligands
Keith Izod; Paul O'Shaughnessy; Joanne M. Sheffield; William Clegg; Stephen T. Liddle; Inorganic Chemistry 39 (2000) 4741–4748; doi:10.1021/ic0002871

data_4321451
_publ_section_title
;
 Synthesis and Structural Characterization of Sm(II) and Yb(II) Complexes
 Containing Sterically Demanding, Chelating Secondary Phosphide Ligands
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              4741
_journal_page_last               4748
_journal_paper_doi               10.1021/ic0002871
_journal_volume                  39
_journal_year                    2000
_chemical_formula_sum            'C36 H70 O5 P2 Si4 Sm'
_chemical_formula_weight         907.57
_chemical_name_systematic
;
 ?
;
_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                72.327(2)
_cell_angle_beta                 83.934(2)
_cell_angle_gamma                79.556(2)
_cell_formula_units_Z            2
_cell_length_a                   11.0625(9)
_cell_length_b                   15.9246(12)
_cell_length_c                   17.2104(14)
_cell_measurement_reflns_used    11196
_cell_measurement_temperature    160(2)
_cell_measurement_theta_max      28.63
_cell_measurement_theta_min      2.13
_cell_volume                     2836.8(4)
_computing_cell_refinement       'local programs'
_computing_data_collection       'Siemens SMART'
_computing_data_reduction        'Siemens SAINT'
_computing_molecular_graphics    'Siemens SHELXTL'
_computing_publication_material  'SHELXTL and local programs'
_computing_structure_refinement  'Siemens SHELXTL'
_computing_structure_solution    'Siemens SHELXTL'
_diffrn_ambient_temperature      160(2)
_diffrn_measured_fraction_theta_full 0.951
_diffrn_measured_fraction_theta_max 0.951
_diffrn_measurement_device_type  'Siemens SMART CCD diffractometer'
_diffrn_measurement_method       '\w rotation with narrow frames'
_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  0.0261
_diffrn_reflns_av_sigmaI/netI    0.0509
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            16491
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.24
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.204
_exptl_absorpt_correction_T_max  0.685
_exptl_absorpt_correction_T_min  0.506
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            'dark green'
_exptl_crystal_density_diffrn    1.063
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             948
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.22
_refine_diff_density_max         0.973
_refine_diff_density_min         -2.733
_refine_diff_density_rms         0.115
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.073
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     543
_refine_ls_number_reflns         9500
_refine_ls_number_restraints     739
_refine_ls_restrained_S_all      1.144
_refine_ls_R_factor_all          0.0915
_refine_ls_R_factor_gt           0.0648
_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^)+(0.0913P)^2^+6.3931P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1696
_refine_ls_wR_factor_ref         0.1890
_reflns_number_gt                6496
_reflns_number_total             9500
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic0002871_1.cif
_cod_data_source_block           ki30
_cod_database_code               4321451