Synthesis, Structure, and Reaction Chemistry of Samarium(II), Europium(II), and Ytterbium(II) Complexes of the Unsymmetrical Benzamidinate Ligand [PhC(NSiMe3)(NC6H3Pri2-2,6)]-
Shuang Yao; Hoi-Shan Chan; Chi-Keung Lam; Hung Kay Lee; Inorganic Chemistry 48 (2009) 9936–9946; doi:10.1021/ic901327m

data_4303381
_publ_section_title
;
Synthesis, Structure, and Reaction Chemistry of Samarium(II), Europium(II),
and Ytterbium(II) Complexes of the Unsymmetrical Benzamidinate Ligand
[PhC(NSiMe3)(NC6H3Pri2-2,6)]-
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              9936
_journal_page_last               9946
_journal_paper_doi               10.1021/ic901327m
_journal_volume                  48
_journal_year                    2009
_chemical_formula_sum            'C22 H31 K N2 Si'
_chemical_formula_weight         390.68
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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            16
_cell_length_a                   18.520(2)
_cell_length_b                   20.284(3)
_cell_length_c                   25.347(3)
_cell_measurement_reflns_used    53
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      14
_cell_measurement_theta_min      -14
_cell_volume                     9522(2)
_computing_cell_refinement       'BRUKER SMART CCD DIFFRACTOMETER'
_computing_data_collection       'BRUKER SMART CCD DIFFRACTOMETER'
_computing_data_reduction        'BRUKER SMART CCD DIFFRACTOMETER'
_computing_molecular_graphics    'SIEMENS SHELXTL'
_computing_publication_material  'SIEMENS SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'BRUKER SMART CCD DIFFRACTOMETER'
_diffrn_measurement_method       'OMEGA SCAN'
_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  0.2482
_diffrn_reflns_av_sigmaI/netI    0.2109
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            49739
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.61
_exptl_absorpt_coefficient_mu    0.281
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.918
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS_Bruker
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.090
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Block
_exptl_crystal_F_000             3360
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.498
_refine_diff_density_min         -0.368
_refine_diff_density_rms         0.124
_refine_ls_extinction_coef       0.0100(12)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.078
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     470
_refine_ls_number_reflns         8386
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.078
_refine_ls_R_factor_all          0.2676
_refine_ls_R_factor_gt           0.0967
_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^)+(0.1623P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2103
_refine_ls_wR_factor_ref         0.3681
_reflns_number_gt                2770
_reflns_number_total             8386
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic901327m_si_002_02.cif
_cod_data_source_block           ys8
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'Multi-scan' changed
to 'multi-scan' according to
'/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_database_code               4303381