Reactivity of ytterbium(II) silylamide supported by a pyrrolyl-cyclopentadienyl ligand.
Li, Jianfeng; Hao, Jingjun; Cui, Chunming; Dalton transactions (Cambridge, England : 2003) 44 (2015) 767–772; doi:10.1039/c4dt03008g

data_7032995
_publ_section_title
;
 Reactivity of ytterbium(II) silylamide supported by a
 pyrrolyl-cyclopentadienyl ligand.
;
_journal_issue                   2
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              767
_journal_page_last               772
_journal_paper_doi               10.1039/c4dt03008g
_journal_volume                  44
_journal_year                    2015
_chemical_formula_sum            'C38 H52 N4 Si2 Yb2'
_chemical_formula_weight         967.10
_chemical_name_systematic
; 
 ? 
;
_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                 91.92(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   13.088(3)
_cell_length_b                   15.696(3)
_cell_length_c                   8.9682(18)
_cell_measurement_reflns_used    5122
_cell_measurement_temperature    113(2)
_cell_measurement_theta_max      27.864
_cell_measurement_theta_min      2.027
_cell_volume                     1841.3(7)
_computing_cell_refinement       crystalclear
_computing_data_collection       'crystalclear(Rigaku/MSC Inc., 2005)'
_computing_data_reduction        crystalclear
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      113(2)
_diffrn_detector_area_resol_mean 7.31
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'rigaku saturn CCD area detector'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  confocal
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0635
_diffrn_reflns_av_unetI/netI     0.0692
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            12405
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         2.03
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    5.145
_exptl_absorpt_correction_T_max  0.7477
_exptl_absorpt_correction_T_min  0.5328
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   crystalclear
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.744
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             952
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.06
_refine_diff_density_max         2.359
_refine_diff_density_min         -1.537
_refine_diff_density_rms         0.188
_refine_ls_extinction_coef       0.0024(4)
_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   0.962
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     209
_refine_ls_number_reflns         3255
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.962
_refine_ls_R_factor_all          0.0638
_refine_ls_R_factor_gt           0.0491
_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^)+(0.0871P)^2^+0.8831P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1320
_refine_ls_wR_factor_ref         0.1472
_reflns_number_gt                2563
_reflns_number_total             3255
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4dt03008g1.cif
_cod_data_source_block           r90722a1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from
2011-04-26.

'_exptl_absorpt_correction_type' value 'MULTI-SCAN'
changed to 'multi-scan' according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from
2011-04-26.

'_refine_ls_hydrogen_treatment' value 'CONSTR' changed
to 'constr' according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2827 2014-09-09 07:05:25Z andrius 

 Adding full bibliography for 7032993--7032995.cif.
;
_cod_original_cell_volume        1841.2(6)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7032995