Non-planar co-ordination of C2-symmetric biaryl-bridged Schiff-base ligands: well expressed chiral ligand environments for zirconium †
Woodman, Paul R.; Munslow, Ian J.; Hitchcock, Peter B.; Scott, Peter; Journal of the Chemical Society, Dalton Transactions  (1999) 4069–; doi:10.1039/a906788d

data_7027783
_publ_section_title
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 Non-planar co-ordination of C2-symmetric biaryl-bridged Schiff-base
 ligands: well expressed chiral ligand environments for
 zirconium&#x200A;&#x2020;
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_journal_issue                   22
_journal_name_full
'Journal of the Chemical Society, Dalton Transactions'
_journal_page_first              4069
_journal_paper_doi               10.1039/a906788d
_journal_year                    1999
_chemical_formula_sum            'C44 H54 Cl2 Hf N2 O2'
_chemical_formula_weight         892.28
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL
_cell_angle_alpha                90.00
_cell_angle_beta                 102.13(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   25.226(7)
_cell_length_b                   10.762(10)
_cell_length_c                   16.134(4)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      10
_cell_measurement_theta_min      7
_cell_volume                     4282(4)
_computing_cell_refinement       'Enraf-Nonius CAD4'
_computing_data_collection       'Enraf-Nonius CAD4'
_computing_molecular_graphics    'CAMERON (Watkin and Pearce,1993)'
_computing_publication_material  SHELXL-93
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measurement_device       ' Enraf-Nonius CAD4'
_diffrn_measurement_method       \w--2\q
_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  0.0727
_diffrn_reflns_av_sigmaI/netI    0.0399
_diffrn_reflns_limit_h_max       29
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            3844
_diffrn_reflns_theta_max         24.97
_diffrn_reflns_theta_min         2.06
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  120
_diffrn_standards_number         2
_exptl_absorpt_coefficient_mu    2.597
_exptl_absorpt_correction_T_max  0.99
_exptl_absorpt_correction_T_min  0.55
_exptl_absorpt_correction_type   psiscans
_exptl_crystal_density_diffrn    1.384
_exptl_crystal_F_000             1816
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.522
_refine_diff_density_min         -4.636
_refine_diff_density_rms         0.165
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_all   1.049
_refine_ls_goodness_of_fit_obs   1.062
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     231
_refine_ls_number_reflns         3761
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.051
_refine_ls_restrained_S_obs      1.062
_refine_ls_R_factor_all          0.0542
_refine_ls_R_factor_obs          0.0474
_refine_ls_shift/esd_max         -0.002
_refine_ls_shift/esd_mean        0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0961P)^2^+2.0568P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1302
_refine_ls_wR_factor_obs         0.1222
_reflns_number_observed          3267
_reflns_number_total             3762
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            906788dsup1.cif
_cod_data_source_block           mar1796
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0961P)^2^+2.0568P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.0961P)^2^+2.0568P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        4282.3(43)
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7027783