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_4310048
_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 H27 N7 O2 S2 Zn'
_chemical_formula_sum            'C20 H27 N7 O2 S2 Zn'
_chemical_formula_weight         526.98
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 99.136(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.7588(8)
_cell_length_b                   13.8619(8)
_cell_length_c                   20.8629(13)
_cell_measurement_reflns_used    3980
_cell_measurement_temperature    180(2)
_cell_measurement_theta_max      51.26
_cell_measurement_theta_min      3.98
_cell_volume                     2500.9(3)
_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  0.0731
_diffrn_reflns_av_sigmaI/netI    0.0819
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            16889
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         2.82
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.179
_exptl_absorpt_correction_T_max  0.829
_exptl_absorpt_correction_T_min  0.688
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'c.f. r.h. blessing, acta cryst. (1995), a51, 33-38'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.400
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1096
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.829
_refine_diff_density_min         -0.510
_refine_diff_density_rms         0.091
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.086
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     315
_refine_ls_number_reflns         4651
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.086
_refine_ls_R_factor_all          0.1001
_refine_ls_R_factor_gt           0.0671
_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^)+(0.0802P)^2^+4.0467P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1781
_refine_ls_wR_factor_ref         0.1918
_reflns_number_gt                3041
_reflns_number_total             4651
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic050791bsi20050517_050121.cif
_cod_data_source_block           ZnLB*(NCS)2
_cod_database_code               4310048