Ligand effect on ethylene trimerisation with [NNN]-heteroscorpionate pyrazolyl Cr(III) catalysts
Zhang, Jun; Li, Aifang; Hor, T. S. Andy; Dalton Transactions  (2009) 9327–; doi:10.1039/b909685j

data_7002637
_publ_section_title
;
 Ligand effect on ethylene trimerisation with [NNN]-heteroscorpionate
 pyrazolyl Cr(III) catalysts
;
_journal_issue                   42
_journal_name_full               'Dalton Transactions'
_journal_page_first              9327
_journal_paper_doi               10.1039/b909685j
_journal_year                    2009
_chemical_formula_sum            'C27 H35 Cl3 Cr Fe N7'
_chemical_formula_weight         671.82
_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                   11.0249(5)
_cell_length_b                   15.2942(6)
_cell_length_c                   18.2787(8)
_cell_measurement_reflns_used    4106
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      22.39
_cell_measurement_theta_min      2.28
_cell_volume                     3082.1(2)
_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      223(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_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  0.0511
_diffrn_reflns_av_sigmaI/netI    0.0629
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            21834
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.74
_exptl_absorpt_coefficient_mu    1.113
_exptl_absorpt_correction_T_max  0.9362
_exptl_absorpt_correction_T_min  0.8248
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            GREEN
_exptl_crystal_density_diffrn    1.448
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    .
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             1388
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.413
_refine_diff_density_min         -0.265
_refine_diff_density_rms         0.066
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.050(17)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.994
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     362
_refine_ls_number_reflns         7065
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.994
_refine_ls_R_factor_all          0.0561
_refine_ls_R_factor_gt           0.0429
_refine_ls_shift/su_max          0.014
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0381P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0840
_refine_ls_wR_factor_ref         0.0882
_reflns_number_gt                5876
_reflns_number_total             7065
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b909685j.txt
_cod_data_source_block           8414
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               7002637