New tetradentate N,N,N,N-chelating α-diimine ligands and their corresponding zinc and nickel complexes: synthesis, characterisation and testing as olefin polymerisation catalysts.
Li, Lidong; Gomes, Clara S. B.; Gomes, Pedro T.; Duarte, M. Teresa; Fan, Zhiqiang; Dalton transactions (Cambridge, England : 2003) 40 (2011) 3365–3380; doi:10.1039/c0dt01308k

data_7015166
_publ_section_title
;
 New tetradentate N,N,N,N-chelating \a-diimine ligands and their
 corresponding zinc and nickel complexes: synthesis, characterisation
 and testing as olefin polymerisation catalysts.
;
_journal_issue                   13
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              3365
_journal_page_last               3380
_journal_paper_doi               10.1039/c0dt01308k
_journal_volume                  40
_journal_year                    2011
_chemical_formula_moiety         'C44 H33 Cl N8 Zn, 0.5(Cl6 Zn2), 2(C H2 Cl2)'
_chemical_formula_sum            'C46 H37 Cl8 N8 Zn2'
_chemical_formula_weight         1116.18
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_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
_audit_creation_method           SHELXL-97
_cell_angle_alpha                115.860(7)
_cell_angle_beta                 106.66(1)
_cell_angle_gamma                95.185(10)
_cell_formula_units_Z            2
_cell_length_a                   13.339(4)
_cell_length_b                   14.079(2)
_cell_length_c                   14.760(2)
_cell_measurement_reflns_used    1775
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      18.90
_cell_measurement_theta_min      2.48
_cell_volume                     2313.8(9)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    ORTEP
_computing_publication_material  enCIFer
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    SIR92
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.972
_diffrn_measured_fraction_theta_max 0.972
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1256
_diffrn_reflns_av_sigmaI/netI    0.2365
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            21962
_diffrn_reflns_theta_full        25.53
_diffrn_reflns_theta_max         25.53
_diffrn_reflns_theta_min         1.66
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    1.543
_exptl_absorpt_correction_T_max  0.8610
_exptl_absorpt_correction_T_min  0.7903
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.602
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1130
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.109
_refine_diff_density_min         -0.907
_refine_diff_density_rms         0.128
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.899
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     576
_refine_ls_number_reflns         8406
_refine_ls_number_restraints     102
_refine_ls_restrained_S_all      0.907
_refine_ls_R_factor_all          0.2465
_refine_ls_R_factor_gt           0.0849
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1156P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1953
_refine_ls_wR_factor_ref         0.2361
_reflns_number_gt                3168
_reflns_number_total             8406
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            c0dt01308k.txt
_cod_data_source_block           2b
_cod_original_cell_volume        2313.9(8)
_cod_database_code               7015166