Bis(picolinato) complexes of vanadium and zinc as potential antidiabetic agents: synthesis, structural elucidation and in vitro insulin-mimetic activity study
Koleša Dobravc, Tanja; Maejima, Keiichi; Yoshikawa, Yutaka; Meden, Anton; Yasui, Hiroyuki; Perdih, Franc; New Journal of Chemistry 42 (2018) 3619–3632; doi:10.1039/C7NJ04189F

data_7056953
_publ_section_title
;
 Bis(picolinato) complexes of vanadium and zinc as potential antidiabetic
 agents: synthesis, structural elucidation and in vitro insulin-mimetic
 activity study
;
_journal_issue                   5
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              3619
_journal_page_last               3632
_journal_paper_doi               10.1039/C7NJ04189F
_journal_volume                  42
_journal_year                    2018
_chemical_formula_moiety         'C19 H20 N4 O7 Zn'
_chemical_formula_sum            'C19 H20 N4 O7 Zn'
_chemical_formula_weight         481.76
_space_group_crystal_system      orthorhombic
_space_group_IT_number           52
_space_group_name_Hall           '-P 2a 2bc'
_space_group_name_H-M_alt        'P n n a'
_symmetry_space_group_name_Hall  '-P 2a 2bc'
_symmetry_space_group_name_H-M   'P n n a'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2017-09-12 deposited with the CCDC.
2018-01-24 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.9159(4)
_cell_length_b                   18.3331(10)
_cell_length_c                   13.4273(7)
_cell_measurement_reflns_used    2882
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      30.2610
_cell_measurement_theta_min      4.4370
_cell_volume                     1948.61(18)
_computing_cell_refinement       'CrysAlis PRO (Agilent, 2011)'
_computing_data_collection       'CrysAlis PRO (Agilent, 2011)'
_computing_data_reduction        'CrysAlis PRO (Agilent, 2011)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXS-2014/7 (Sheldrick, 2015)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 10.4933
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  Mirror
_diffrn_radiation_source         'SuperNova (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0278
_diffrn_reflns_av_unetI/netI     0.0275
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.999
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            7918
_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.999
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.481
_diffrn_reflns_theta_min         2.987
_exptl_absorpt_coefficient_mu    1.313
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.69828
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(CrysAlis PRO; Agilent, 2013)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.642
_exptl_crystal_description       block
_exptl_crystal_F_000             992
_exptl_crystal_size_max          0.400
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.200
_refine_diff_density_max         0.414
_refine_diff_density_min         -0.386
_refine_diff_density_rms         0.063
_refine_ls_extinction_coef       0.0031(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2014/7 (Sheldrick, 2015)'
_refine_ls_goodness_of_fit_ref   1.045
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     149
_refine_ls_number_reflns         2238
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.045
_refine_ls_R_factor_all          0.0353
_refine_ls_R_factor_gt           0.0278
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0389P)^2^+0.7965P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0735
_refine_ls_wR_factor_ref         0.0790
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1834
_reflns_number_total             2238
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7nj04189f2.cif
_cod_data_source_block           11
_cod_database_code               7056953
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.622
_shelx_estimated_absorpt_t_max   0.779
_shelx_res_checksum              42182