Vanadium Pyridonates: Dimerization, Redox Behaviour, and Metal-Ligand Cooperativity
Griffin, Samuel E.; Adamczyk, Olivia V.; Schafer, Laurel L.; Dalton Transactions  (2022) –; doi:10.1039/D2DT02177C

data_7711136
_publ_section_title
;
 Vanadium Pyridonates: Dimerization, Redox Behaviour, and Metal-Ligand
 Cooperativity
;
_journal_name_full               'Dalton Transactions'
_journal_paper_doi               10.1039/D2DT02177C
_journal_year                    2022
_chemical_formula_moiety         'C16 H24 N4 O2 V'
_chemical_formula_sum            'C16 H24 N4 O2 V'
_chemical_formula_weight         355.33
_chemical_properties_physical
Air-sensitive,Moisture-sensitive,Oxygen-sensitive
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2021-02-09
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2021-02-12 deposited with the CCDC.	2022-08-30 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 111.566(6)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.6250(9)
_cell_length_b                   29.317(4)
_cell_length_c                   8.7682(10)
_cell_measurement_reflns_used    3326
_cell_measurement_temperature    100
_cell_measurement_theta_max      25.44
_cell_measurement_theta_min      2.60
_cell_volume                     1822.8(4)
_computing_cell_refinement       'SAINT V8.38A (?, 2016)'
_computing_data_reduction        'SAINT V8.38A (?, 2016)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      100
_diffrn_detector                 'Bruker APEX2 area detector'
_diffrn_detector_area_resol_mean 7.9
_diffrn_detector_type            'CCD area detector'
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device       'Bruker D8 Kappa diffractometer'
_diffrn_measurement_device_type  'Bruker APEX II area detector'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  'TRIUMPH curved-crystal'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0614
_diffrn_reflns_av_unetI/netI     0.0735
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.993
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       35
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            11780
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.993
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.652
_diffrn_reflns_theta_min         1.389
_diffrn_source                   'sealed X-ray tube'
_diffrn_source_type              'Incoatec I\ms'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.558
_exptl_absorpt_correction_T_max  0.7453
_exptl_absorpt_correction_T_min  0.6022
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.0905 before and 0.0498 after correction. The Ratio of minimum to maximum transmission is 0.8080. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            red
_exptl_crystal_colour_primary    red
_exptl_crystal_density_diffrn    1.295
_exptl_crystal_description       irregular
_exptl_crystal_F_000             748
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: hexanes'
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.365
_refine_diff_density_min         -0.297
_refine_diff_density_rms         0.064
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.019
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     214
_refine_ls_number_reflns         3434
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.019
_refine_ls_R_factor_all          0.0876
_refine_ls_R_factor_gt           0.0540
_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^)+(0.0482P)^2^+0.9291P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1098
_refine_ls_wR_factor_ref         0.1219
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2396
_reflns_number_total             3434
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2dt02177c3.cif
_cod_data_source_block           ls754_0m_a
_cod_original_cell_volume        1822.9(4)
_cod_database_code               7711136
_shelx_shelxl_version_number     2018/1
_shelx_estimated_absorpt_t_max   0.967
_shelx_estimated_absorpt_t_min   0.892
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C8(H8), C2(H2), C10(H10), C9(H9), C4(H4), C3(H3)
2.b Idealised Me refined as rotating group:
 C12(H12A,H12B,H12C), C15(H15A,H15B,H15C), C6(H6A,H6B,H6C), C16(H16A,H16B,
 H16C), C14(H14A,H14B,H14C), C13(H13A,H13B,H13C)
;
_shelx_res_checksum              67676
_shelx_hkl_checksum              56119
_olex2_submission_original_sample_id SEG-113
_olex2_submission_special_instructions 'No special instructions were received'