Complexation to FeII, NiII, and ZnII of Multidentate Ligands Resulting from Condensation of 2-Pyridinecarboxaldehyde with α,ω-Triamines: Selective Imidazolidine/Hexahydropyrimidine Ring Opening Revisited
Nicolas Bréfuel; Christine Lepetit; Sergiu Shova; Françoise Dahan; Jean-Pierre Tuchagues; Inorganic Chemistry 44 (2005) 8916–8928; doi:10.1021/ic050791b

data_4310047
_publ_section_title
;
Complexation to FeII, NiII, and ZnII of Multidentate Ligands Resulting from
Condensation of 2-Pyridinecarboxaldehyde with \a,\w-Triamines: Selective
Imidazolidine/Hexahydropyrimidine Ring Opening Revisited
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              8916
_journal_page_last               8928
_journal_paper_doi               10.1021/ic050791b
_journal_volume                  44
_journal_year                    2005
_chemical_formula_moiety         'C20 H23 N7 Ni S2'
_chemical_formula_sum            'C20 H23 N7 Ni S2'
_chemical_formula_weight         484.28
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           11
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yb'
_symmetry_space_group_name_H-M   'P 1 21/m 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 101.21(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.0178(16)
_cell_length_b                   9.6784(19)
_cell_length_c                   14.546(3)
_cell_measurement_reflns_used    3706
_cell_measurement_temperature    180(2)
_cell_measurement_theta_max      51.04
_cell_measurement_theta_min      4.03
_cell_volume                     1107.2(4)
_computing_cell_refinement       'CrysAlis RED, Oxford Diffraction Ltd.,'
_computing_data_collection       'CrysAlis CCD, Oxford Diffraction Ltd.,'
_computing_data_reduction        'CrysAlis RED, Oxford Diffraction Ltd.,'
_computing_molecular_graphics    'ORTEP-3 (Farrugia, 1997)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      180(2)
_diffrn_detector_area_resol_mean 0
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_method       0
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1261
_diffrn_reflns_av_sigmaI/netI    0.1300
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            7786
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         3.19
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.087
_exptl_absorpt_correction_T_max  0.990
_exptl_absorpt_correction_T_min  0.796
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'c.f. r.h. blessing, acta cryst. (1995), a51, 33-38'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.453
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             504
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.061
_refine_diff_density_min         -0.659
_refine_diff_density_rms         0.113
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.984
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     231
_refine_ls_number_reflns         2068
_refine_ls_number_restraints     21
_refine_ls_restrained_S_all      0.979
_refine_ls_R_factor_all          0.1298
_refine_ls_R_factor_gt           0.0783
_refine_ls_shift/su_max          0.092
_refine_ls_shift/su_mean         0.007
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1108P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1932
_refine_ls_wR_factor_ref         0.2243
_reflns_number_gt                1098
_reflns_number_total             2068
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic050791bsi20050517_050052.cif
_cod_data_source_block           NiLCNCSNCS
_cod_database_code               4310047