Stabilization of M(IV) = Ti, Zr, Hf, Ce, and Th using a selenium bis(phenolate) ligand.
Behrle, Andrew C.; Levin, Jessica R.; Kim, Jee Eon; Drewett, Jonathan M.; Barnes, Charles L.; Schelter, Eric J.; Walensky, Justin R.; Dalton transactions (Cambridge, England : 2003) 44 (2015) 2693–2702; doi:10.1039/c4dt01798f

data_7032521
_publ_section_title
;
 Stabilization of M(IV) = Ti, Zr, Hf, Ce, and Th using a selenium
 bis(phenolate) ligand.
;
_journal_issue                   6
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              2693
_journal_page_last               2702
_journal_paper_doi               10.1039/c4dt01798f
_journal_volume                  44
_journal_year                    2015
_chemical_formula_moiety         '(C56 H80 O4 Se2 Ti), (C7 H8)'
_chemical_formula_sum            'C63 H88 O4 Se2 Ti'
_chemical_formula_weight         1115.15
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                92.097(2)
_cell_angle_beta                 94.557(2)
_cell_angle_gamma                101.358(2)
_cell_formula_units_Z            2
_cell_length_a                   13.523(3)
_cell_length_b                   14.612(3)
_cell_length_c                   15.959(3)
_cell_measurement_reflns_used    9904
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      26.9
_cell_measurement_theta_min      2.2
_cell_volume                     3077.5(11)
_computing_cell_refinement       'APEX2 (Bruker AXS, 2008)'
_computing_data_collection       'APEX2 (Bruker AXS, 2008)'
_computing_data_reduction        'APEX2 (Bruker AXS, 2008)'
_computing_molecular_graphics    'X-SEED, Barbour, 2001'
_computing_publication_material  'CIFTAB (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.985
_diffrn_measured_fraction_theta_max 0.985
_diffrn_measurement_device_type  'Bruker APEXII CCD area detector'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0313
_diffrn_reflns_av_sigmaI/netI    0.0413
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            36293
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         1.54
_diffrn_source                   'fine-focus sealed tube'
_diffrn_standards_decay_%        0.0
_exptl_absorpt_coefficient_mu    1.364
_exptl_absorpt_correction_T_max  0.88
_exptl_absorpt_correction_T_min  0.76
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 Data were corrected for decay and absorption using the program SADABS 
 (Sheldrick, G. M. (2003). SADABS. Version 2.10. University of
 G\"ottingen, Germany).
;
_exptl_crystal_colour            Orange
_exptl_crystal_density_diffrn    1.203
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             1176
_exptl_crystal_size_max          0.13
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.362
_refine_diff_density_min         -0.333
_refine_diff_density_rms         0.054
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.039
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     656
_refine_ls_number_reflns         13900
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.039
_refine_ls_R_factor_all          0.0451
_refine_ls_R_factor_gt           0.0317
_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^)+(0.0345P)^2^+0.5747P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0741
_refine_ls_wR_factor_ref         0.0789
_reflns_number_gt                11188
_reflns_number_total             13900
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4dt01798f2.cif
_cod_data_source_block           Ti[ArOSeO]2_Ar=2,4-tBu2C6H2
_cod_depositor_comments
'Adding full bibliography for 7032518--7032522.cif.'
_cod_original_cell_volume        3077.4(10)
_cod_database_code               7032521