Cyclooctatetraene Complexes of Yttrium and the Lanthanides with Bis(phosphinimino)methanides: Synthesis, Structure, and Hydroamination/Cyclization Catalysis
Panda, Tarun K.; Zulys, Agustino; Gamer, Michael T.; Roesky, Peter W.; Organometallics 24 (2005) 2197–2202; doi:10.1021/om0491138

data_1100883
_publ_section_title
;
 Cyclooctatetraene Complexes of Yttrium and the Lanthanides with
 Bis(phosphinimino)methanides: Synthesis, Structure, and
 Hydroamination/Cyclization Catalysis
;
_journal_coden_ASTM              ORGND7
_journal_issue                   9
_journal_name_full               Organometallics
_journal_page_first              2197
_journal_page_last               2202
_journal_paper_doi               10.1021/om0491138
_journal_volume                  24
_journal_year                    2005
_chemical_formula_sum            'C39 H47 N2 P2 Si2 Sm'
_chemical_formula_weight         812.26
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 99.364(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.3050(8)
_cell_length_b                   19.6230(13)
_cell_length_c                   15.6500(10)
_cell_measurement_temperature    203(2)
_cell_volume                     3728.5(4)
_computing_molecular_graphics    'Diamond 2.1e'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      203(2)
_diffrn_detector_area_resol_mean ?
_diffrn_measured_fraction_theta_full 0.972
_diffrn_measured_fraction_theta_max 0.972
_diffrn_measurement_device_type  Stoe-IPDS
_diffrn_measurement_method       'area detector'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           AgK\a
_diffrn_radiation_wavelength     0.56087
_diffrn_reflns_av_R_equivalents  0.1285
_diffrn_reflns_av_sigmaI/netI    0.0876
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            24303
_diffrn_reflns_theta_full        20.81
_diffrn_reflns_theta_max         20.81
_diffrn_reflns_theta_min         1.54
_diffrn_standards_decay_%        ?
_diffrn_standards_interval_count ?
_diffrn_standards_interval_time  ?
_diffrn_standards_number         ?
_exptl_absorpt_coefficient_mu    0.938
_exptl_absorpt_correction_T_max  ?
_exptl_absorpt_correction_T_min  ?
_exptl_absorpt_correction_type   none
_exptl_absorpt_process_details   ?
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.447
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plates
_exptl_crystal_F_000             1660
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.24
_refine_diff_density_max         2.180
_refine_diff_density_min         -2.106
_refine_diff_density_rms         0.243
_refine_ls_extinction_coef       ?
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.120
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     421
_refine_ls_number_reflns         7714
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.120
_refine_ls_R_factor_all          0.0721
_refine_ls_R_factor_gt           0.0585
_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^)+(0.1000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1619
_refine_ls_wR_factor_ref         0.1742
_reflns_number_gt                5976
_reflns_number_total             7714
_reflns_threshold_expression     >2sigma(I)
_cod_duplicate_entry             4060418
_cod_data_source_file            om0491138si20041116_113831.cif
_cod_data_source_block           1b
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               1100883