A bipyridyl thorium metallocene: synthesis, structure and reactivity
Ren, Wenshan; Song, Haibin; Zi, Guofu; Walter, Marc D.; Dalton Transactions 41 (2012) 5965–; doi:10.1039/c2dt00051b

data_7018774
_publ_section_title
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 A bipyridyl thorium metallocene: synthesis, structure and reactivity
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_journal_issue                   19
_journal_name_full               'Dalton Transactions'
_journal_page_first              5965
_journal_paper_doi               10.1039/c2dt00051b
_journal_volume                  41
_journal_year                    2012
_chemical_formula_moiety         'C38 H52 Se2 Th'
_chemical_formula_sum            'C38 H52 Se2 Th'
_chemical_formula_weight         898.76
_chemical_name_systematic
;

?

;
_space_group_IT_number           7
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P -2yc'
_symmetry_space_group_name_H-M   'P 1 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                 104.175(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.0333(16)
_cell_length_b                   16.165(2)
_cell_length_c                   19.461(3)
_cell_measurement_reflns_used    4755
_cell_measurement_temperature    110(2)
_cell_measurement_theta_max      27.28
_cell_measurement_theta_min      2.52
_cell_volume                     3670.3(9)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_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      110(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0408
_diffrn_reflns_av_sigmaI/netI    0.0656
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            17883
_diffrn_reflns_theta_full        25.25
_diffrn_reflns_theta_max         25.25
_diffrn_reflns_theta_min         2.16
_exptl_absorpt_coefficient_mu    6.069
_exptl_absorpt_correction_T_max  0.3486
_exptl_absorpt_correction_T_min  0.2252
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.627
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1752
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.22
_refine_diff_density_max         3.661
_refine_diff_density_min         -1.099
_refine_diff_density_rms         0.145
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.007(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     762
_refine_ls_number_reflns         9247
_refine_ls_number_restraints     74
_refine_ls_restrained_S_all      1.020
_refine_ls_R_factor_all          0.0535
_refine_ls_R_factor_gt           0.0428
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0169P)^2^+18.0766P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0905
_refine_ls_wR_factor_ref         0.0954
_reflns_number_gt                7973
_reflns_number_total             9247
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt00051b.txt
_cod_data_source_block           compound6
_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 2.4.1 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_values 1715 2011-07-08 13:25:40Z adriana 
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_cod_original_cell_volume        3670.2(9)
_cod_original_sg_symbol_H-M      Pc
_cod_database_code               7018774