Synthesis and Structures of Ln(II) and Ln(III) Dialkyls Derived from LnI2(Ln = Nd, Tm, Yb)
Bowman, Lyndsey J.; Izod, Keith; Clegg, William; Harrington, Ross W.; Organometallics 26 (2007) 2646–; doi:10.1021/om0611711

data_4072967
_publ_section_title
;
 Synthesis and Structures of Ln(II) and Ln(III) Dialkyls Derived from
 LnI2(Ln = Nd, Tm, Yb)
;
_journal_issue                   10
_journal_name_full               Organometallics
_journal_page_first              2646
_journal_paper_doi               10.1021/om0611711
_journal_volume                  26
_journal_year                    2007
_chemical_formula_moiety         'C24 H60 O3 Si6 Yb'
_chemical_formula_sum            'C24 H60 O3 Si6 Yb'
_chemical_formula_weight         738.30
_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                   12.7912(6)
_cell_length_b                   16.5615(8)
_cell_length_c                   16.8787(8)
_cell_measurement_reflns_used    7153
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      28.86
_cell_measurement_theta_min      2.16
_cell_volume                     3575.6(3)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL and local programs'
_computing_structure_refinement  'Bruker SHELXTL'
_computing_structure_solution    SIR97
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker APEX2 CCD diffractometer'
_diffrn_measurement_method       'thin-slice \w scans'
_diffrn_radiation_monochromator  'silicon 111'
_diffrn_radiation_source         'Daresbury SRS station 9.8'
_diffrn_radiation_type           synchrotron
_diffrn_radiation_wavelength     0.6771
_diffrn_reflns_av_R_equivalents  0.0399
_diffrn_reflns_av_sigmaI/netI    0.0380
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            38114
_diffrn_reflns_theta_full        28.94
_diffrn_reflns_theta_max         28.94
_diffrn_reflns_theta_min         1.90
_diffrn_standards_decay_%        10
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.838
_exptl_absorpt_correction_T_max  0.945
_exptl_absorpt_correction_T_min  0.871
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.371
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1528
_exptl_crystal_size_max          0.05
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.02
_refine_diff_density_max         3.070
_refine_diff_density_min         -0.760
_refine_diff_density_rms         0.099
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.026(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.048
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     324
_refine_ls_number_reflns         10863
_refine_ls_number_restraints     30
_refine_ls_restrained_S_all      1.047
_refine_ls_R_factor_all          0.0356
_refine_ls_R_factor_gt           0.0324
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0502P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0811
_refine_ls_wR_factor_ref         0.0822
_reflns_number_gt                10007
_reflns_number_total             10863
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            om0611711si20061222_060252.cif
_cod_data_source_block           sse0048_ki196_compound5
_cod_database_code               4072967