Eight-Coordinate Zn(II), Cd(II), and Pb(II) Complexes Based on a 1,7-Diaza-12-crown-4 Platform Endowed with a Remarkable Selectivity over Ca(II)
Raquel Ferreirós-Martínez; David Esteban-Gómez; Andrés de Blas; Carlos Platas-Iglesias; Teresa Rodríguez-Blas; Inorganic Chemistry 48 (2009) 11821–11831; doi:10.1021/ic901883h

data_4303910
_publ_contact_author_address
;
Departamento de Quimica Fundamental
Facultade de Ciencias
Universidade da Coruna
Campus da Zapateira s/n
15071 A Coruna
Spain
;
_publ_contact_author_email       ucambv@udc.es
_publ_contact_author_fax         '+ 34 981 167065'
_publ_contact_author_name        'De Blas, Andres'
_publ_contact_author_phone       '+ 34 981 167000'
_publ_section_title
;
Eight-Coordinate Zn(II), Cd(II), and Pb(II) Complexes Based on a
1,7-Diaza-12-crown-4 Platform Endowed with a Remarkable Selectivity over
Ca(II)
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              11821
_journal_page_last               11831
_journal_paper_doi               10.1021/ic901883h
_journal_volume                  48
_journal_year                    2009
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C22 H26 Cl2 N4 O6 Zn2, H2 O'
_chemical_formula_sum            'C22 H28 Cl2 N4 O7 Zn2'
_chemical_formula_weight         662.12
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      15
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.4
_audit_creation_date             2008-12-31T01:08:15-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 113.276(9)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   31.181(2)
_cell_length_b                   13.417(5)
_cell_length_c                   13.370(2)
_cell_measurement_reflns_used    1957
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      24.62
_cell_measurement_theta_min      2.61
_cell_measurement_wavelength     0.71073
_cell_volume                     5138(2)
_computing_cell_refinement       'BRUKER APEX2'
_computing_data_collection       'BRUKER APEX2'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SUPERFLIP (Palatinus & Chapuis, 2007)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker X8 KappaAPEXII CCD'
_diffrn_measurement_method       'omega and phi scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0915
_diffrn_reflns_av_unetI/netI     0.055
_diffrn_reflns_limit_h_max       35
_diffrn_reflns_limit_h_min       -39
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            5320
_diffrn_reflns_theta_full        26.48
_diffrn_reflns_theta_max         26.48
_diffrn_reflns_theta_min         1.42
_exptl_absorpt_coefficient_mu    2.126
_exptl_absorpt_correction_T_max  0.979
_exptl_absorpt_correction_T_min  0.823
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS, Bruker (2001). SADABS. Bruker AXS Inc., Madison,
Wisconsin, USA. 
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.712
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2704
_exptl_crystal_size_max          0.41
_exptl_crystal_size_mid          0.03
_exptl_crystal_size_min          0.01
_platon_squeeze_details
;
;
_refine_diff_density_max         0.87
_refine_diff_density_min         -0.866
_refine_diff_density_rms         0.108
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     328
_refine_ls_number_reflns         5320
_refine_ls_number_restraints     26
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0766
_refine_ls_R_factor_gt           0.0403
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0447P)^2^+7.5878P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0865
_refine_ls_wR_factor_ref         0.0961
_reflns_number_gt                3727
_reflns_number_total             5320
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            ic901883h_si_002_4.cif
_cod_data_source_block           compound3b
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               4303910