Chromium complexes supported by the bidentate PN ligands: synthesis, characterization and application for ethylene polymerization.
Zheng, Quande; Zheng, Dejuan; Han, Binghao; Liu, Shaofeng; Li, Zhibo; Dalton transactions (Cambridge, England : 2003) 47 (2018) 13459–13465; doi:10.1039/c8dt02834f

data_7047375
_publ_section_title
;
 Chromium complexes supported by the bidentate PN ligands: synthesis,
 characterization and application for ethylene polymerization.
;
_journal_issue                   38
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              13459
_journal_page_last               13465
_journal_paper_doi               10.1039/c8dt02834f
_journal_volume                  47
_journal_year                    2018
_chemical_formula_moiety         'C31 H34 Cl3 Cr N O P, 2(C4 H8 O)'
_chemical_formula_sum            'C39 H50 Cl3 Cr N O3 P'
_chemical_formula_weight         770.12
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_date             2018-08-03
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2018-08-11 deposited with the CCDC.
2018-08-27 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 110.780(8)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   20.439(2)
_cell_length_b                   10.5810(10)
_cell_length_c                   18.320(3)
_cell_measurement_reflns_used    2232
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      22.42
_cell_measurement_theta_min      2.20
_cell_volume                     3704.2(8)
_computing_cell_refinement       'SAINT v7.60A (Bruker, 2009)'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'SAINT v7.60A (Bruker, 2009)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100.15
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1076
_diffrn_reflns_av_unetI/netI     0.1147
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            18028
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        24.999
_diffrn_reflns_theta_max         24.999
_diffrn_reflns_theta_min         1.066
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.607
_exptl_absorpt_correction_T_max  0.902
_exptl_absorpt_correction_T_min  0.852
_exptl_absorpt_correction_type   none
_exptl_absorpt_process_details   none
_exptl_crystal_colour            green
_exptl_crystal_colour_primary    green
_exptl_crystal_density_diffrn    1.381
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1620
_exptl_crystal_size_max          0.29
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.17
_refine_diff_density_max         0.664
_refine_diff_density_min         -1.172
_refine_diff_density_rms         0.102
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.085
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     441
_refine_ls_number_reflns         6514
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.085
_refine_ls_R_factor_all          0.0986
_refine_ls_R_factor_gt           0.0620
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0100P)^2^+3.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1125
_refine_ls_wR_factor_ref         0.1234
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4028
_reflns_number_total             6514
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8dt02834f2.cif
_cod_data_source_block           a
_cod_depositor_comments
'Adding full bibliography for 7047375--7047376.cif.'
_cod_database_code               7047375
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_max   0.904
_shelx_estimated_absorpt_t_min   0.844
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C3(H3), C10(H10)
2.b Secondary CH2 refined with riding coordinates:
 C32(H32A,H32B), C33(H33A,H33B), C34(H34A,H34B), C35(H35A,H35B), C36(H36A,
 H36B), C37(H37A,H37B), C38(H38A,H38B), C39(H39A,H39B)
2.c Me refined with riding coordinates:
 C4(H4A,H4B,H4C), C5(H5A,H5B,H5C), C11(H11A,H11B,H11C), C12(H12A,H12B,H12C)
2.d Aromatic/amide H refined with riding coordinates:
 C6(H6), C7(H7), C8(H8), C13(H13), C15(H15), C16(H16), C17(H17), C18(H18),
 C21(H21), C22(H22), C23(H23), C24(H24), C25(H25), C27(H27), C28(H28), C29(H29),
  C30(H30), C31(H31)
;
_shelx_res_checksum              72794
_olex2_submission_special_instructions 'No special instructions were received'