Vanadyl complexes supported by O,O-and N,O-chelate ligation: Structures and polymerization catalysis
Shibata, Kaname; Michiue, Kenji; Motuzis, Ignas; Elsegood, Mark Robert James; Redshaw, Carl; Dalton Transactions  (2026) –; doi:10.1039/D6DT00387G

data_7720680
_publ_section_title
;
 Vanadyl complexes supported by O,O- and N,O-chelate ligation: structures
 and polymerization catalysis.
;
_journal_issue                   14
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              5644
_journal_page_last               5666
_journal_paper_doi               10.1039/d6dt00387g
_journal_volume                  55
_journal_year                    2026
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C30 H24 Br4 N2 O3 V'
_chemical_formula_sum            'C30 H24 Br4 N2 O3 V'
_chemical_formula_weight         831.09
_space_group_crystal_system      orthorhombic
_space_group_IT_number           33
_space_group_name_Hall           'P 2c -2n'
_space_group_name_H-M_alt        'P n a 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     iterative
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2019/3
_audit_update_record
;
2026-01-19 deposited with the CCDC.	2026-03-10 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   18.00871(7)
_cell_length_b                   21.83197(9)
_cell_length_c                   15.26656(7)
_cell_measurement_reflns_used    78353
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      73.44
_cell_measurement_theta_min      3.54
_cell_volume                     6002.29(4)
_computing_cell_refinement       'CrysAlisPro 1.171.43.98a (Rigaku OD, 2023)'
_computing_data_collection
'CrysAlisPro system (CCD 43.104a 64-bit (release 22-12-2023))'
_computing_data_reduction        'CrysAlisPro 1.171.43.98a (Rigaku OD, 2023)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2019/3 (Sheldrick, 2019)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type
; 
Rigaku 007HF diffractometer with HF Varimax confocal mirrors, 
an UG2 goniometer and HyPix 6000HE detector 
;
_diffrn_measurement_method       'profile data from \w-scans'
_diffrn_radiation_collimation    0.3
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0333
_diffrn_reflns_av_unetI/netI     0.0190
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.988
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            102257
_diffrn_reflns_point_group_measured_fraction_full 0.992
_diffrn_reflns_point_group_measured_fraction_max 0.966
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         73.725
_diffrn_reflns_theta_min         3.181
_diffrn_source                   'Rotating anode'
_exptl_absorpt_coefficient_mu    9.286
_exptl_absorpt_correction_T_max  0.756
_exptl_absorpt_correction_T_min  0.408
_exptl_absorpt_correction_type   analytical
_exptl_absorpt_process_details
; 
CrysAlisPro 1.171.43.98a (Rigaku Oxford Diffraction, 2023) 
Analytical numeric absorption correction using a multifaceted crystal 
model based on expressions derived by R.C. Clark & J.S. Reid. 
(Clark, R. C. & Reid, J. S. (1995). Acta Cryst. A51, 887-897) 
Empirical absorption correction using spherical harmonics, 
implemented in SCALE3 ABSPACK scaling algorithm. 
;
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.839
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             3240
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: acetonitrile'
_exptl_crystal_size_max          0.122
_exptl_crystal_size_mid          0.108
_exptl_crystal_size_min          0.032
_refine_diff_density_max         1.194
_refine_diff_density_min         -0.698
_refine_diff_density_rms         0.060
_refine_ls_abs_structure_details
; 
 Flack x determined using 5220 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259). 
;
_refine_ls_abs_structure_Flack   0.001(2)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     767
_refine_ls_number_reflns         11716
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.029
_refine_ls_R_factor_all          0.0228
_refine_ls_R_factor_gt           0.0222
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0261P)^2^+5.3441P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0542
_refine_ls_wR_factor_ref         0.0546
_reflns_Friedel_coverage         0.881
_reflns_Friedel_fraction_full    0.982
_reflns_Friedel_fraction_max     0.942
_reflns_number_gt                11493
_reflns_number_total             11716
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d6dt00387g2.cif
_cod_data_source_block           7
_cod_depositor_comments
'Adding full bibliography for 7720679--7720691.cif.'
_cod_database_code               7720680
_shelx_shelxl_version_number     2019/3
_shelx_estimated_absorpt_t_min   0.397
_shelx_estimated_absorpt_t_max   0.755
_shelx_res_checksum              71570