Structurally characterized group 4 metal alkoxides modified with the pyridyl-based ligands 2-mercapto pyridine n-oxide and 3,3'-dihydroxy-2,2'-bipyridine
Timothy J. Boyle; Leigh Anna M. Ottley; Mark A. Rodriguez; Polyhedron 27 (2008) 3079–3084; doi:10.1016/j.poly.2008.06.037

data_1512923
_publ_section_title
;
 Structurally characterized group 4 metal alkoxides modified with the
 pyridyl-based ligands 2-mercapto pyridine n-oxide and
 3,3'-dihydroxy-2,2'-bipyridine
;
_journal_issue                   14
_journal_name_full               Polyhedron
_journal_page_first              3079
_journal_page_last               3084
_journal_paper_doi               10.1016/j.poly.2008.06.037
_journal_volume                  27
_journal_year                    2008
_chemical_formula_moiety         'C54 H72 N6 O12 Zr3'
_chemical_formula_sum            'C54 H72 N6 O12 Zr3'
_chemical_formula_weight         1270.84
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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            4
_cell_length_a                   15.800(2)
_cell_length_b                   16.544(2)
_cell_length_c                   27.596(4)
_cell_measurement_reflns_used    200
_cell_measurement_temperature    273(2)
_cell_measurement_theta_max      23.30
_cell_measurement_theta_min      1.78
_cell_volume                     7213.5(16)
_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      273(2)
_diffrn_detector_area_resol_mean 'phi and omega scans'
_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  0.0566
_diffrn_reflns_av_sigmaI/netI    0.0394
_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       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            44325
_diffrn_reflns_theta_full        25.30
_diffrn_reflns_theta_max         23.30
_diffrn_reflns_theta_min         1.78
_exptl_absorpt_coefficient_mu    0.476
_exptl_absorpt_correction_T_max  0.875
_exptl_absorpt_correction_T_min  0.843
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.170
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       irregular
_exptl_crystal_F_000             2616
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.28
_refine_diff_density_max         0.349
_refine_diff_density_min         -0.768
_refine_diff_density_rms         0.056
_refine_ls_abs_structure_details 'heavy atom'
_refine_ls_abs_structure_Flack   0.0(1)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.007
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     694
_refine_ls_number_reflns         10404
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.007
_refine_ls_R_factor_all          0.0354
_refine_ls_R_factor_gt           0.0324
_refine_ls_shift/su_max          0.118
_refine_ls_shift/su_mean         0.006
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0517P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0799
_refine_ls_wR_factor_ref         0.0816
_reflns_number_gt                9650
_reflns_number_total             10404
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            2008-3079.cif
_cod_data_source_block           7ja171s
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' 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_cell_volume        7213.1(16)
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               1512923