Zwitterionic Ni(ii) complexes bearing pyrazolyl-ether-imidazolium ligands: synthesis, structural characterization and use in ethylene oligomerization
Ulbrich, Ana H. D. P. S.; Milani, Jorge L. S.; Roisnel, Thierry; Carpentier, Jean-François; Casagrande, Osvaldo L.; New J. Chem. 39 (2015) 7234–; doi:10.1039/C5NJ01538C

data_7054990
_publ_section_title
;
 Zwitterionic Ni(ii) complexes bearing pyrazolyl-ether-imidazolium
 ligands: synthesis, structural characterization and use in ethylene
 oligomerization
;
_journal_issue                   9
_journal_name_full               'New J. Chem.'
_journal_page_first              7234
_journal_paper_doi               10.1039/C5NJ01538C
_journal_volume                  39
_journal_year                    2015
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C12 H19 Cl3 N4 Ni O'
_chemical_formula_sum            'C12 H19 Cl3 N4 Ni O'
_chemical_formula_weight         400.37
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.3
_audit_creation_date             2010-06-23T12:33:11-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_audit_update_record
;
2015-03-23 deposited with the CCDC.
2015-07-10 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 104.377(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.3830(6)
_cell_length_b                   7.7341(3)
_cell_length_c                   17.1341(7)
_cell_measurement_reflns_used    4696
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.31
_cell_measurement_theta_min      2.91
_cell_measurement_wavelength     0.71073
_cell_volume                     1717.93(12)
_computing_cell_refinement       'Bruker SMART (Bruker, 2002)'
_computing_data_collection       'Bruker SAINT (Bruker, 2002)'
_computing_data_reduction        'Bruker SAINT (Bruker, 2002)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material
;
           WinGX publication routines (Farrugia, 1999),
           CRYSCAL (T. Roisnel, local program)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999))'
_diffrn_ambient_temperature      150(2)
_diffrn_detector                 'CCD plate'
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'APEXII, Bruker-AXS'
_diffrn_measurement_method       'CCD rotation images, thin slices'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0376
_diffrn_reflns_av_unetI/netI     0.035
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            13838
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.07
_exptl_absorpt_coefficient_mu    1.598
_exptl_absorpt_correction_T_max  0.909
_exptl_absorpt_correction_T_min  0.741
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
  [Sheldrick, G.M. (2002). SADABS Bruker AXS Inc., Madison, Wisconsin, USA]
;
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.548
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             824
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.332
_refine_diff_density_min         -0.333
_refine_diff_density_rms         0.064
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.031
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     192
_refine_ls_number_reflns         3899
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.031
_refine_ls_R_factor_all          0.0388
_refine_ls_R_factor_gt           0.0298
_refine_ls_shift/su_max          0.015
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0337P)^2^+0.5423P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0703
_refine_ls_wR_factor_ref         0.0748
_reflns_number_gt                3240
_reflns_number_total             3899
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5nj01538c2.cif
_cod_data_source_block           job
_cod_depositor_comments
'Adding full bibliography for 7054987--7054991.cif.'
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7054990