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_7056948
_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         'C12 H8 N2 O8 V, H2 O, H4 N'
_chemical_formula_sum            'C12 H14 N3 O9 V'
_chemical_formula_weight         395.20
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_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                 104.392(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.0697(3)
_cell_length_b                   13.0146(5)
_cell_length_c                   15.4733(6)
_cell_measurement_reflns_used    1863
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      0.41
_cell_volume                     1574.07(10)
_computing_cell_refinement       'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'KappaCCD Reference Manual (Nonius, 1998)'
_computing_data_reduction        'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2015)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 0.055
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type
;
Nonius KappaCCD area-detector diffractometer
;
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0178
_diffrn_reflns_av_unetI/netI     0.0240
_diffrn_reflns_Laue_measured_fraction_full 0.983
_diffrn_reflns_Laue_measured_fraction_max 0.986
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            3471
_diffrn_reflns_point_group_measured_fraction_full 0.983
_diffrn_reflns_point_group_measured_fraction_max 0.986
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.518
_diffrn_reflns_theta_min         3.585
_exptl_absorpt_coefficient_mu    0.686
_exptl_absorpt_correction_T_max  0.9864
_exptl_absorpt_correction_T_min  0.7256
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SCALEPACK (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.668
_exptl_crystal_description       plate
_exptl_crystal_F_000             808
_exptl_crystal_size_max          0.500
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.020
_refine_diff_density_max         0.570
_refine_diff_density_min         -0.509
_refine_diff_density_rms         0.088
_refine_ls_extinction_coef       0.018(3)
_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   1.170
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     126
_refine_ls_number_reflns         1781
_refine_ls_number_restraints     11
_refine_ls_restrained_S_all      1.167
_refine_ls_R_factor_all          0.0766
_refine_ls_R_factor_gt           0.0714
_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^)+(0.0484P)^2^+11.9812P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1905
_refine_ls_wR_factor_ref         0.1929
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1607
_reflns_number_total             1781
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7nj04189f2.cif
_cod_data_source_block           4
_cod_database_code               7056948
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.726
_shelx_estimated_absorpt_t_max   0.986
_shelx_res_checksum              86493