Synthesis, structures and ethylene polymerization behavior of half-metallocene chromium(iii) catalysts bearing salicylaldiminato ligands
Sun, Mingtai; Mu, Ying; Wu, Qiaolin; Gao, Wei; Ye, Ling; New Journal of Chemistry 34 (2010) 2979–; doi:10.1039/c0nj00439a

data_7053674
_publ_section_title
;
 Synthesis, structures and ethylene polymerization behavior of
 half-metallocene chromium(iii) catalysts bearing salicylaldiminato
 ligands
;
_journal_issue                   12
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              2979
_journal_paper_doi               10.1039/c0nj00439a
_journal_volume                  34
_journal_year                    2010
_chemical_formula_sum            'C25 H36 Cl3 Cr N2 O3'
_chemical_formula_weight         570.91
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_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                 99.29(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.839(2)
_cell_length_b                   11.779(2)
_cell_length_c                   25.013(5)
_cell_measurement_temperature    293(2)
_cell_volume                     2860.8(10)
_computing_cell_refinement       'RAPID AUTO'
_computing_data_collection       'RAPID AUTO'
_computing_data_reduction        'RAPID AUTO'
_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      293(2)
_diffrn_detector_area_resol_mean '100x100 microns'
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Rigaku R-AXIS RAPID IP diffractometer'
_diffrn_measurement_method       'Oscillation 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  0.1476
_diffrn_reflns_av_sigmaI/netI    0.1242
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            27517
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.00
_diffrn_standards_decay_%        none
_diffrn_standards_interval_count none
_diffrn_standards_interval_time  none
_diffrn_standards_number         none
_exptl_absorpt_coefficient_mu    0.708
_exptl_absorpt_correction_T_max  0.9262
_exptl_absorpt_correction_T_min  0.9199
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.325
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1196
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.11
_refine_diff_density_max         0.736
_refine_diff_density_min         -0.674
_refine_diff_density_rms         0.077
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.062
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     317
_refine_ls_number_reflns         6519
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.062
_refine_ls_R_factor_all          0.1974
_refine_ls_R_factor_gt           0.1015
_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^)+(0.0695P)^2^+7.1531P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1957
_refine_ls_wR_factor_ref         0.2358
_reflns_number_gt                3359
_reflns_number_total             6519
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0nj00439a.txt
_cod_data_source_block           complex_7
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_cell_volume        2860.9(10)
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7053674