Group 4 metal complexes with new chiral pincer NHC-ligands: synthesis, structure and catalytic activity.
Zhao, Ning; Hou, Guohua; Deng, Xuebin; Zi, Guofu; Walter, Marc D.; Dalton transactions (Cambridge, England : 2003) 43 (2014) 8261–8272; doi:10.1039/c4dt00510d

data_7029630
_publ_section_title
;
 Group 4 metal complexes with new chiral pincer NHC-ligands: synthesis,
 structure and catalytic activity.
;
_journal_issue                   22
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              8261
_journal_page_last               8272
_journal_paper_doi               10.1039/c4dt00510d
_journal_volume                  43
_journal_year                    2014
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C51 H70 Cl N3 O3 Zr'
_chemical_formula_sum            'C51 H70 Cl N3 O3 Zr'
_chemical_formula_weight         899.77
_chemical_name_systematic
; 
 ? 
;
_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                   12.7285(15)
_cell_length_b                   15.0219(18)
_cell_length_c                   30.104(4)
_cell_measurement_reflns_used    9994
_cell_measurement_temperature    110(2)
_cell_measurement_theta_max      26.84
_cell_measurement_theta_min      2.44
_cell_volume                     5756.1(12)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      110(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0367
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       36
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            10419
_diffrn_reflns_theta_full        25.25
_diffrn_reflns_theta_max         25.25
_diffrn_reflns_theta_min         1.92
_exptl_absorpt_coefficient_mu    0.273
_exptl_absorpt_correction_T_max  0.9653
_exptl_absorpt_correction_T_min  0.8531
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.038
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1912
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.378
_refine_diff_density_min         -0.272
_refine_diff_density_rms         0.045
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.01(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.041
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     571
_refine_ls_number_reflns         10419
_refine_ls_number_restraints     66
_refine_ls_restrained_S_all      1.055
_refine_ls_R_factor_all          0.0349
_refine_ls_R_factor_gt           0.0307
_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^)+(0.0414P)^2^+1.1045P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0758
_refine_ls_wR_factor_ref         0.0774
_reflns_number_gt                9645
_reflns_number_total             10419
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4dt00510d2.cif
_cod_data_source_block           compound18
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from
2011-04-26.

'_exptl_absorpt_correction_type' value 'Multi-scan'
changed to 'multi-scan' according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 

 Adding full bibliography for 7029625--7029632.cif.
;
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               7029630