The N,N′-bis(trimethylsilyl)pentafluorobenzamidinate ligand: enhanced ethene oligomerisation with a neutral V(iii) bis(benzamidinate) alkyl catalyst
Brussee, Edward A. C.; Meetsma, Auke; Hessen, Bart; Teuben, Jan H.; Chemical Communications  (2000) 497–; doi:10.1039/b000397m

data_7110853
_publ_section_title
;
 The N,N&#x2032;-bis(trimethylsilyl)pentafluorobenzamidinate ligand:
 enhanced ethene oligomerisation with a neutral V(iii) bis(benzamidinate)
 alkyl catalyst
;
_journal_issue                   6
_journal_name_full               'Chemical Communications'
_journal_page_first              497
_journal_paper_doi               10.1039/b000397m
_journal_year                    2000
_chemical_compound_source        'by syntheses'
_chemical_formula_moiety         'C33 H41 Cl F10 N5 Si4 V'
_chemical_formula_sum            'C33 H41 Cl F10 N5 Si4 V'
_chemical_formula_weight         896.44
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                86.41(1)
_cell_angle_beta                 74.73(1)
_cell_angle_gamma                67.63(1)
_cell_formula_units_Z            2
_cell_length_a                   10.206(2)
_cell_length_b                   13.176(2)
_cell_length_c                   17.922(3)
_cell_measurement_reflns_used    22
_cell_measurement_temperature    130
_cell_measurement_theta_max      20.48
_cell_measurement_theta_min      18.08
_cell_volume                     2148.1(7)
_computing_cell_refinement       'SET4 (de Boer & Duisenberg, 1984)'
_computing_data_collection       'CAD4-UNIX Software Version 5.1, 1994'
_computing_data_reduction        'HELENA (Spek, 1993)'
_computing_molecular_graphics
;
 PLUTO (Meetsma, 1997)
 ORTEP (Burnett et al., 1996)
 PLATON (Spek, 1994, 1996)
;
_computing_publication_material  'PLATON (Spek, 1990)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution
;
 DIRDIF-97 (Beurskens et al., 1997)
;
_diffrn_ambient_temperature      130
_diffrn_measurement_device_type
;
     Enraf Nonius CAD-4F diffractometer
;
_diffrn_measurement_method       \w/2\q
_diffrn_radiation_detector
;
     scintillation NaI crystal with photomultiplier
;
_diffrn_radiation_monochromator  'perpendicular mounted graphite'
_diffrn_radiation_source         'fine focus sealed Philips Mo tube '
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     .71073
_diffrn_reflns_av_R_equivalents  0.1167
_diffrn_reflns_av_sigmaI/netI    0.0187
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            8473
_diffrn_reflns_reduction_process
;
 Intensity data were corrected for Lorentz and polarization  effects, scale
 variation, but not for absorption and reduced to F~o~^2^
;
_diffrn_reflns_theta_max         27.46
_diffrn_reflns_theta_min         1.18
_diffrn_standards_decay_%        1.0
_diffrn_standards_interval_time  180
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    .48
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            'colorless transparent'
_exptl_crystal_density_diffrn    1.386
_exptl_crystal_density_meas      ?
_exptl_crystal_description       parallelepiped
_exptl_crystal_F_000             920
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.37
_exptl_crystal_size_min          0.33
_refine_diff_density_max         .408
_refine_diff_density_min         -.355
_refine_diff_density_rms         .056
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.101
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     650
_refine_ls_number_reflns         8144
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.101
_refine_ls_R_factor_all          0.0412
_refine_ls_R_factor_gt           0.0356
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0542P)^2^+1.0579P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0933
_refine_ls_wR_factor_ref         0.0986
_reflns_number_gt                7274
_reflns_number_total             8160
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b000397msup1.cif
_cod_data_source_block           c33h41cl
_cod_depositor_comments
;
The following automatic conversions were performed:

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

'_exptl_absorpt_correction_type' value ' none' changed
to 'none' 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 'Not Measured' 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 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0542P)^2^+1.0579P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.0542P)^2^+1.0579P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_database_code               7110853