New V(IV)O-complexes for oxidative desulfurization of refractory sulfur compounds in fuel: synthesis, structure, reactivity trend and mechanistic studies
Tshentu, Zenixole; Dembaremba, Tendai; Correia, Isabel; Pessoa, João Costa; Gerber, Wilhelmus Jacobus; Kuznetsov, Maxim L.; Hosten, Eric Cyriel; Ogunlaja, Adeniyi; Dalton Transactions  (2019) –; doi:10.1039/C9DT02505G

data_7701430
_publ_section_title
;
 New V(IV)O-complexes for oxidative desulfurization of refractory sulfur
 compounds in fuel: synthesis, structure, reactivity trend and mechanistic
 studies
;
_journal_name_full               'Dalton Transactions'
_journal_paper_doi               10.1039/C9DT02505G
_journal_year                    2019
_chemical_formula_moiety         'C18 H15 N4 O4 V'
_chemical_formula_sum            'C18 H15 N4 O4 V'
_chemical_formula_weight         402.28
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2019-09-05 deposited with the CCDC.    2019-10-24 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.2579(3)
_cell_length_b                   13.8117(5)
_cell_length_c                   16.2980(6)
_cell_measurement_reflns_used    7346
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      28.28
_cell_measurement_theta_min      2.95
_cell_volume                     1633.78(11)
_computing_cell_refinement       'APEX2 v2011.4-1 (Bruker AXS)'
_computing_data_collection       'Bruker Instrument Service v2011.4.0.0'
_computing_data_reduction        'SAINT V7.68A (Bruker AXS, 2009)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 2012)'
_computing_publication_material
'PLATON (Spek, 2009) and MERCURY (Macrae, 2008)'
_computing_structure_refinement
'SHELXL-2018/3 (Sheldrick, 2015) and ShelXle (H\"ubschle, 2011)'
_computing_structure_solution    'SHELXT-2018/2 (Sheldrick, 2015)'
_diffrn_ambient_temperature      200(2)
_diffrn_detector_area_resol_mean 8.3333
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0229
_diffrn_reflns_av_unetI/netI     0.0236
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            15488
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.331
_diffrn_reflns_theta_min         1.933
_exptl_absorpt_coefficient_mu    0.643
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.9056
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'SADABS V2008/1 (Bruker AXS)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.635
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             824
_exptl_crystal_size_max          0.361
_exptl_crystal_size_mid          0.146
_exptl_crystal_size_min          0.121
_refine_diff_density_max         0.492
_refine_diff_density_min         -0.240
_refine_diff_density_rms         0.051
_refine_ls_abs_structure_details
;
 Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   0.48(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.075
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     245
_refine_ls_number_reflns         4064
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.075
_refine_ls_R_factor_all          0.0330
_refine_ls_R_factor_gt           0.0285
_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^)+(0.0415P)^2^+0.4518P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0744
_refine_ls_wR_factor_ref         0.0763
_reflns_Friedel_coverage         0.743
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     0.994
_reflns_number_gt                3756
_reflns_number_total             4064
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9dt02505g2.cif
_cod_data_source_block           ga314
_cod_database_code               7701430
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.801
_shelx_estimated_absorpt_t_max   0.926
_shelx_res_checksum              96546