Nickel Complexes with New Bidentate P,N Phosphinitooxazoline and -Pyridine Ligands: Application for the Catalytic Oligomerization of Ethylene
Fredy Speiser; Pierre Braunstein; Lucien Saussine; Richard Welter; Inorganic Chemistry 43 (2004) 1649–1658; doi:10.1021/ic035132i

data_4310666
_publ_contact_author_address
;

Institut Le Bel, rue Blaise Pascal, 67000 STRASBOURG, FRANCE

;
_publ_contact_author_email       braunst@chimie.u-strasbg.fr
_publ_contact_author_fax         0390241322
_publ_contact_author_name
;

Pierre Braunstein

;
_publ_contact_author_phone       0390241308
_publ_section_title
;
 Nickel Complexes with New Bidentate P,N Phosphinitooxazoline and
 -Pyridine Ligands: Application for the Catalytic Oligomerization of
 Ethylene
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              1649
_journal_page_last               1658
_journal_paper_doi               10.1021/ic035132i
_journal_volume                  43
_journal_year                    2004
_chemical_formula_moiety         'C20 H24 Cl2 N Ni O2 P'
_chemical_formula_sum            'C20 H24 Cl2 N Ni O2 P'
_chemical_formula_weight         470.98
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_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_creation_date             10-05-02
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 93.16(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.999(2)
_cell_length_b                   14.579(2)
_cell_length_c                   16.535(2)
_cell_measurement_reflns_used    4403
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      1.018
_cell_volume                     2166.0(6)
_computing_cell_refinement       'Denzo (Nonius B.V., 1998)'
_computing_data_collection       'Collect (Nonius B.V., 1998)'
_computing_data_reduction        'Denzo (Nonius B.V., 1998)'
_computing_molecular_graphics    'PLATON 98 (Spek, 1998)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       '\p 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  0.0285
_diffrn_reflns_av_sigmaI/netI    0.0624
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            8331
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         1.86
_exptl_absorpt_coefficient_mu    1.231
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            violet
_exptl_crystal_density_diffrn    1.444
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             976
_exptl_crystal_size_max          0.13
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.353
_refine_diff_density_min         -0.417
_refine_diff_density_rms         0.071
_refine_ls_extinction_coef       0.0026(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.015
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     245
_refine_ls_number_reflns         4950
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.015
_refine_ls_R_factor_all          0.0678
_refine_ls_R_factor_gt           0.0369
_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^)+(0.0399P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0803
_refine_ls_wR_factor_ref         0.0904
_reflns_number_gt                3521
_reflns_number_total             4950
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic035132isi20030930_073434.cif
_cod_data_source_block           st790
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4310666