Synthesis, Structures, and Ethylene Oligomerization Activity of Bis(phosphanylamine)pyridine Chromium/Aluminate Complexes
Alzamly, Ahmed; Gambarotta, Sandro; Korobkov, Ilia; Organometallics 32 (2013) 7107–; doi:10.1021/om4008289

data_4081952
_publ_section_title
;
 Synthesis, Structures, and Ethylene Oligomerization Activity of
 Bis(phosphanylamine)pyridine Chromium/Aluminate Complexes
;
_journal_issue                   23
_journal_name_full               Organometallics
_journal_page_first              7107
_journal_paper_doi               10.1021/om4008289
_journal_volume                  32
_journal_year                    2013
_chemical_formula_sum            'C44 H52 Al2 Cl3 Cr N3 P2'
_chemical_formula_weight         897.14
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 100.382(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.564(2)
_cell_length_b                   17.882(3)
_cell_length_c                   18.987(3)
_cell_measurement_reflns_used    9767
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      28.01
_cell_measurement_theta_min      2.19
_cell_volume                     5197.9(14)
_computing_cell_refinement       'APEX II, Bruker (2009)'
_computing_data_collection       'APEX II, Bruker (2009)'
_computing_data_reduction        'XPREP, Bruker (2009)'
_computing_molecular_graphics    'SHELXTL, Bruker (2004)'
_computing_publication_material  'SHELXTL, Bruker (2004)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_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  0.0316
_diffrn_reflns_av_sigmaI/netI    0.0243
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            76406
_diffrn_reflns_theta_full        28.34
_diffrn_reflns_theta_max         28.34
_diffrn_reflns_theta_min         1.87
_exptl_absorpt_coefficient_mu    0.499
_exptl_absorpt_correction_T_max  0.9199
_exptl_absorpt_correction_T_min  0.8895
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS, Bruker (2003)'
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.146
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1872
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.17
_refine_diff_density_max         0.960
_refine_diff_density_min         -0.423
_refine_diff_density_rms         0.094
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.045
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     535
_refine_ls_number_reflns         12831
_refine_ls_number_restraints     114
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0795
_refine_ls_R_factor_gt           0.0558
_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^)+(0.1124P)^2^+2.2192P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1598
_refine_ls_wR_factor_ref         0.1838
_reflns_number_gt                9517
_reflns_number_total             12831
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om4008289_si_002.cif
_cod_data_source_block           sg223
_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 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'n/a' 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        5197.8(14)
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               4081952