Synthesis, Characterization, Selective Catalytic Activity, and Reactivity of Rare Earth Metal Amides with Different Metal−Nitrogen Bonds
Zhu, Xiancui; Fan, Jiaxi; Wu, Yunjun; Wang, Shaowu; Zhang, Lijun; Yang, Gaosheng; Wei, Yun; Yin, Chengwei; Zhu, Hong; Wu, Shihong; Zhang, Hongtao; Organometallics 28 (2009) 3882–; doi:10.1021/om900191j

data_4069435
_publ_section_title
;
 Synthesis, Characterization, Selective Catalytic Activity, and Reactivity
 of Rare Earth Metal Amides with Different Metal&#x2212;Nitrogen Bonds
;
_journal_issue                   13
_journal_name_full               Organometallics
_journal_page_first              3882
_journal_paper_doi               10.1021/om900191j
_journal_volume                  28
_journal_year                    2009
_chemical_formula_sum            'C36 H66 N3 O Si3 Sm'
_chemical_formula_weight         791.54
_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                 115.0210(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   20.2606(11)
_cell_length_b                   22.1896(12)
_cell_length_c                   21.2409(12)
_cell_measurement_temperature    293(2)
_cell_volume                     8653.2(8)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_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  0.0772
_diffrn_reflns_av_sigmaI/netI    0.0835
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            74511
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         1.40
_exptl_absorpt_coefficient_mu    1.468
_exptl_crystal_density_diffrn    1.215
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             3320
_refine_diff_density_max         0.679
_refine_diff_density_min         -0.656
_refine_diff_density_rms         0.082
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.976
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     825
_refine_ls_number_reflns         19755
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.976
_refine_ls_R_factor_all          0.1116
_refine_ls_R_factor_gt           0.0439
_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^)+(0.0319P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0738
_refine_ls_wR_factor_ref         0.0924
_reflns_number_gt                10958
_reflns_number_total             19755
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om900191j_si_003.cif
_cod_data_source_block           080104a_0m_(4)
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4069435