A family of mixed-ligand oxidovanadium(V) complexes with aroylhydrazone ligands: a combined experimental and computational study on the electronic effects of para substitutents of hydrazone ligands on the electronic properties, DNA binding and nuclease activities
Ghosh, Tapas; Patra, Debashis; Biswas, Nirmalendu; Kumari, Bhavini; Das, Prolay; Sepay, Nayim; Chatterjee, Shamba K.; Drew, Michael G. B.; RSC Adv.  (2015) –; doi:10.1039/C5RA17844D

data_7222987
_publ_section_title
;
 A family of mixed-ligand oxidovanadium(V) complexes with aroylhydrazone
 ligands: a combined experimental and computational study on the
 electronic effects of para substitutents of hydrazone ligands on the
 electronic properties, DNA binding and nuclease activities
;
_journal_name_full               'RSC Adv.'
_journal_paper_doi               10.1039/C5RA17844D
_journal_year                    2015
_chemical_formula_sum            'C17.5 H19 N2 O4.5'
_chemical_formula_weight         329.35
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2015-08-18 deposited with the CCDC.
2015-10-20 downloaded from the CCDC.
;
_cell_angle_alpha                112.586(12)
_cell_angle_beta                 96.537(10)
_cell_angle_gamma                117.044(13)
_cell_formula_units_Z            4
_cell_length_a                   12.1814(14)
_cell_length_b                   12.8382(18)
_cell_length_c                   13.3641(15)
_cell_measurement_reflns_used    11378
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      30.00
_cell_measurement_theta_min      3.10
_cell_volume                     1609.5(5)
_computing_cell_refinement       'Crysalis, Oxford Diffraction'
_computing_data_collection       'Crysalis, Oxford Diffraction'
_computing_data_reduction        'Crysalis, Oxford Diffraction'
_computing_molecular_graphics    PLATON(Spek,2004)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.958
_diffrn_measured_fraction_theta_max 0.958
_diffrn_measurement_device       'Oxford Diffaction X-Calibur System'
_diffrn_measurement_method       '321 frames, counting time 10 s.'
_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  0.0532
_diffrn_reflns_av_sigmaI/netI    0.1375
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            11378
_diffrn_reflns_theta_full        30.00
_diffrn_reflns_theta_max         30.00
_diffrn_reflns_theta_min         3.10
_diffrn_standards_decay_%        n/a
_diffrn_standards_interval_count n/a
_diffrn_standards_interval_time  n/a
_diffrn_standards_number         n/a
_exptl_absorpt_coefficient_mu    0.099
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            white
_exptl_crystal_density_diffrn    1.359
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             696
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.03
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.403
_refine_diff_density_min         -0.353
_refine_diff_density_rms         0.074
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.038
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     441
_refine_ls_number_reflns         8976
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.038
_refine_ls_R_factor_all          0.1663
_refine_ls_R_factor_gt           0.0940
_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^)+(0.0641P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1706
_refine_ls_wR_factor_ref         0.2107
_reflns_number_gt                5028
_reflns_number_total             8976
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c5ra17844d2.cif
_cod_data_source_block           H3L3
_cod_original_cell_volume        1609.5(3)
_cod_original_sg_symbol_H-M      P-1
_cod_original_formula_sum        'C17.50 H19 N2 O4.50'
_cod_database_code               7222987