Chromium complexes bearing amidinato-phosphino ligand: synthesis, characterization, and catalytic properties of ethylene tri-/tetramerization and polymerization.
Liu, Rui; Zhu, Kongtao; Zhong, Xianghong; Li, Jiancheng; Liu, Zhenyu; Chen, Shibing; Zhu, Hongping; Dalton transactions (Cambridge, England : 2003) 45 (2016) 17020–17029; doi:10.1039/c6dt03216h

data_7040697
_publ_section_title
;
 Chromium complexes bearing amidinato-phosphino ligand: synthesis,
 characterization, and catalytic properties of ethylene
 tri-/tetramerization and polymerization.
;
_journal_issue                   42
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              17020
_journal_page_last               17029
_journal_paper_doi               10.1039/c6dt03216h
_journal_volume                  45
_journal_year                    2016
_chemical_formula_sum            'C49 H56 Cl Cr N2 O0 P'
_chemical_formula_weight         791.38
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2016-09-10 deposited with the CCDC.
2016-09-22 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 122.928(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   33.421(2)
_cell_length_b                   13.0286(8)
_cell_length_c                   23.9827(15)
_cell_measurement_reflns_used    3000
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.2990
_cell_measurement_theta_min      3.4230
_cell_volume                     8765.2(11)
_computing_cell_refinement       'Bruker FRAMBO'
_computing_data_collection       'Bruker FRAMBO'
_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      173(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'multiwire proportional'
_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  0.0520
_diffrn_reflns_av_sigmaI/netI    0.0807
_diffrn_reflns_limit_h_max       41
_diffrn_reflns_limit_h_min       -40
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            18928
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         3.26
_exptl_absorpt_coefficient_mu    0.393
_exptl_absorpt_correction_T_max  0.9255
_exptl_absorpt_correction_T_min  0.8586
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   empirical
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.199
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             3360
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.379
_refine_diff_density_min         -0.342
_refine_diff_density_rms         0.065
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.054
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     496
_refine_ls_number_reflns         8600
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.054
_refine_ls_R_factor_all          0.1080
_refine_ls_R_factor_gt           0.0703
_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^)+(0.0562P)^2^+17.4407P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1494
_refine_ls_wR_factor_ref         0.1638
_reflns_number_gt                5969
_reflns_number_total             8600
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c6dt03216h1.cif
_cod_data_source_block           lr-150909
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 4268 2015-11-12 08:31:59Z antanas 

 Adding full bibliography for 7040694--7040697.cif.
;
_cod_original_cell_volume        8765.2(10)
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7040697