Structural characterization of the coordination behavior of 4,4'-di-methoxy,2,2'-di-ol-benzophenone modified metal alkoxides
Timothy J. Boyle; Leigh Anna M. Ottley; Inorganica Chimica Acta 364 (2010) 69–80; doi:10.1016/j.ica.2010.08.047

data_1512940
_publ_section_title
;
 Structural characterization of the coordination behavior of
 4,4'-di-methoxy,2,2'-di-ol-benzophenone modified metal
 alkoxides
;
_journal_issue                   1
_journal_name_full               'Inorganica Chimica Acta'
_journal_page_first              69
_journal_page_last               80
_journal_paper_doi               10.1016/j.ica.2010.08.047
_journal_volume                  364
_journal_year                    2010
_chemical_formula_sum            'C42 H54 O16 Ta2'
_chemical_formula_weight         1176.75
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_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                83.088(2)
_cell_angle_beta                 87.469(2)
_cell_angle_gamma                77.400(2)
_cell_formula_units_Z            2
_cell_length_a                   12.2415(15)
_cell_length_b                   13.3600(17)
_cell_length_c                   13.7173(17)
_cell_measurement_temperature    173(2)
_cell_volume                     2173.1(5)
_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      173(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_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  0.0186
_diffrn_reflns_av_sigmaI/netI    0.0250
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            13438
_diffrn_reflns_theta_full        23.31
_diffrn_reflns_theta_max         23.31
_diffrn_reflns_theta_min         1.70
_exptl_absorpt_coefficient_mu    5.102
_exptl_absorpt_correction_T_max  0.144
_exptl_absorpt_correction_T_min  0.098
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.798
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       irregular
_exptl_crystal_F_000             1160
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.48
_exptl_crystal_size_min          0.38
_refine_diff_density_max         1.238
_refine_diff_density_min         -0.347
_refine_diff_density_rms         0.103
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.065
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     551
_refine_ls_number_reflns         6235
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.065
_refine_ls_R_factor_all          0.0270
_refine_ls_R_factor_gt           0.0239
_refine_ls_shift/su_max          0.019
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0360P)^2^+1.3082P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0605
_refine_ls_wR_factor_ref         0.0625
_reflns_number_gt                5657
_reflns_number_total             6235
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            2010-69.cif
_cod_data_source_block           7mr121s
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               1512940