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_7711137
_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         'C20 H29 N4 O2 V'
_chemical_formula_sum            'C20 H29 N4 O2 V'
_chemical_formula_weight         408.41
_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     iterative
_audit_creation_date             2020-11-12
_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                 102.278(4)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.5832(7)
_cell_length_b                   12.8300(9)
_cell_length_c                   16.4657(12)
_cell_measurement_reflns_used    3441
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      23.76
_cell_measurement_theta_min      2.27
_cell_volume                     1978.2(2)
_computing_cell_refinement       'SAINT V8.40B (?, 2016)'
_computing_data_reduction        'SAINT V8.40B (?, 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    'olex2.solve (Bourhis et al., 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 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device       'Bruker-Nonius Kappa diffractometer'
_diffrn_measurement_device_type  'Bruker APEX II area detector'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  'mirror optics'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0973
_diffrn_reflns_av_unetI/netI     0.0808
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            15217
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        23.875
_diffrn_reflns_theta_max         23.875
_diffrn_reflns_theta_min         2.030
_diffrn_source                   'microfocus sealed X-ray tube'
_diffrn_source_type              'Incoatec I\ms'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.524
_exptl_absorpt_correction_T_max  0.7450
_exptl_absorpt_correction_T_min  0.6826
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.0699 before and 0.0609 after correction. The Ratio of minimum to maximum transmission is 0.9162. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            orange
_exptl_crystal_colour_primary    orange
_exptl_crystal_density_diffrn    1.371
_exptl_crystal_description       irregular
_exptl_crystal_F_000             864
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: hexanes'
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.281
_refine_diff_density_min         -0.326
_refine_diff_density_rms         0.075
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.958
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     246
_refine_ls_number_reflns         3048
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.958
_refine_ls_R_factor_all          0.0959
_refine_ls_R_factor_gt           0.0520
_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^)+(0.1000P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1346
_refine_ls_wR_factor_ref         0.1603
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2037
_reflns_number_total             3048
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2dt02177c3.cif
_cod_data_source_block           ls898
_cod_database_code               7711137
_shelx_shelxl_version_number     2018/1
_shelx_estimated_absorpt_t_max   0.974
_shelx_estimated_absorpt_t_min   0.926
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups, All N(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 N4(H4)
2.b Secondary CH2 refined with riding coordinates:
 C19(H19A,H19B), C18(H18A,H18B), C16(H16A,H16B), C20(H20A,H20B), C13(H13A,
 H13B), C17(H17A,H17B), C14(H14A,H14B), C15(H15A,H15B)
2.c Aromatic/amide H refined with riding coordinates:
 C8(H8), C9(H9), C4(H4A), C2(H2), C10(H10), C3(H3)
2.d Idealised Me refined as rotating group:
 C6(H6A,H6B,H6C), C12(H12A,H12B,H12C)
;
_shelx_res_checksum              88103
_shelx_hkl_checksum              91051
_olex2_diffrn_ambient_temperature_device 'Oxford Cryosystems'
_olex2_submission_special_instructions 'No special instructions were received'