Chelating (pyrazolylmethyl)pyridine ligands: Coordination chemistry and binding properties with zinc(II) and cadmium(II) cations
Stephen O. Ojwach; George S. Nyamato; Benard Omondi; James Darkw; Inorganica Chimica Acta 392 (2012) 141–147; doi:10.1016/j.ica.2012.07.005

data_1512468
_publ_section_title
;
 Chelating (pyrazolylmethyl)pyridine ligands: Coordination chemistry and
 binding properties with zinc(II) and cadmium(II) cations
;
_journal_name_full
;
Inorganica Chimica Acta
;
_journal_page_first              141
_journal_page_last               147
_journal_paper_doi               10.1016/j.ica.2012.07.005
_journal_volume                  392
_journal_year                    2012
_chemical_formula_moiety         'C11 H13 N5 O6 Zn'
_chemical_formula_sum            'C11 H13 N5 O6 Zn'
_chemical_formula_weight         376.63
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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             2010-07-16T15:40:02-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 131.150(16)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   12.169(5)
_cell_length_b                   16.839(5)
_cell_length_c                   18.493(5)
_cell_measurement_reflns_used    23652
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.32
_cell_measurement_theta_min      1.9
_cell_volume                     2853.4(18)
_computing_cell_refinement       'SAINT-plus (Bruker, 2004)'
_computing_data_collection       'APEX2 (Bruker, 2005)'
_computing_data_reduction        'SAINT-Plus and XPREP (Bruker, 2004)'
_computing_molecular_graphics
'DIAMOND (Brandenburg & Putz, 2005), ORTEP3 (Farrugia, 1997)'
_computing_publication_material  'WinGX (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.852
_diffrn_measured_fraction_theta_max 0.852
_diffrn_measurement_device_type  'Bruker X8 ApexII 4K Kappa CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0662
_diffrn_reflns_av_unetI/netI     0.0953
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            23180
_diffrn_reflns_theta_full        25
_diffrn_reflns_theta_max         28.32
_diffrn_reflns_theta_min         1.9
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.763
_exptl_absorpt_correction_T_max  0.917
_exptl_absorpt_correction_T_min  0.677
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2008)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.753
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1536
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.05
_refine_diff_density_max         1.539
_refine_diff_density_min         -0.602
_refine_diff_density_rms         0.105
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.913
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     419
_refine_ls_number_reflns         6084
_refine_ls_number_restraints     15
_refine_ls_restrained_S_all      0.92
_refine_ls_R_factor_all          0.0918
_refine_ls_R_factor_gt           0.0451
_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^)+(0.0362P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0923
_refine_ls_wR_factor_ref         0.1045
_reflns_number_gt                3499
_reflns_number_total             6084
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ICA-2012-392-141-147-1.cif
_cod_data_source_block           mo_10bo_so1_0m
_cod_original_cell_volume        2853.4(16)
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               1512468