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_4310045
_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         'C18 H19 N7 Ni S2'
_chemical_formula_sum            'C18 H19 N7 Ni S2'
_chemical_formula_weight         456.23
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           9
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 c 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                 112.32(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.726(3)
_cell_length_b                   13.221(3)
_cell_length_c                   13.107(3)
_cell_measurement_reflns_used    3980
_cell_measurement_temperature    180(2)
_cell_measurement_theta_max      32.09
_cell_measurement_theta_min      2.99
_cell_volume                     2200.3(10)
_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_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Oxford Difraction, XCALIBUR'
_diffrn_measurement_method       omega-phi
_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  0.0322
_diffrn_reflns_av_sigmaI/netI    0.0403
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            7822
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         3.36
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.089
_exptl_absorpt_correction_T_max  0.991
_exptl_absorpt_correction_T_min  0.908
_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    1.377
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             944
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.973
_refine_diff_density_min         -0.216
_refine_diff_density_rms         0.068
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.002(16)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     270
_refine_ls_number_reflns         3024
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0375
_refine_ls_R_factor_gt           0.0343
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0527P)^2^+0.7396P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0868
_refine_ls_wR_factor_ref         0.0883
_reflns_number_gt                2764
_reflns_number_total             3024
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic050791bsi20050517_045953.cif
_cod_data_source_block           NiLANCS2
_cod_original_cell_volume        2200.4(8)
_cod_database_code               4310045