Vanadyl complexes bearing bi-dentate phenoxyimine ligands: synthesis, structural studies and ethylene polymerization capability.
Ma, Jing; Zhao, Ke-Qing; Walton, Mark J.; Wright, Joseph A.; Frese, Josef W. A.; Elsegood, Mark R. J.; Xing, Qifeng; Sun, Wen-Hua; Redshaw, Carl; Dalton transactions (Cambridge, England : 2003) 43 (2014) 8300–8310; doi:10.1039/c4dt00021h

data_7029688
_publ_section_title
;
 Vanadyl complexes bearing bi-dentate phenoxyimine ligands: synthesis,
 structural studies and ethylene polymerization capability.
;
_journal_issue                   22
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              8300
_journal_page_last               8310
_journal_paper_doi               10.1039/c4dt00021h
_journal_volume                  43
_journal_year                    2014
_chemical_formula_moiety         'C44 H56 N2 O5 V'
_chemical_formula_sum            'C44 H56 N2 O5 V'
_chemical_formula_weight         743.85
_space_group_IT_number           2
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_symmetry_Int_Tables_number      2
_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
_cell_angle_alpha                66.33(3)
_cell_angle_beta                 67.40(3)
_cell_angle_gamma                83.36(3)
_cell_formula_units_Z            4
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_cell_length_b                   18.182(4)
_cell_length_c                   19.034(4)
_cell_measurement_reflns_used    32972
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.00
_cell_measurement_theta_min      1.53
_cell_volume                     4433(2)
_computing_cell_refinement       'CrystalClear (Rigaku Inc., 2007)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2007)'
_computing_data_reduction        'CrystalClear (Rigaku Inc., 2007)'
_computing_molecular_graphics    'CAMERON (Watkin <i>et al</i>, 1993)'
_computing_publication_material  'SHELX97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Saturn724+ CCD'
_diffrn_measurement_method       '\w scans at fixed \c = 45\%'
_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  0.0497
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_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            32972
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.53
_diffrn_standards_decay_%        none
_diffrn_standards_interval_count none
_diffrn_standards_interval_time  none
_diffrn_standards_number         none
_exptl_absorpt_coefficient_mu    0.266
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_exptl_absorpt_correction_T_min  0.6777
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.115
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Plate
_exptl_crystal_F_000             1588
_exptl_crystal_size_max          0.406
_exptl_crystal_size_mid          0.331
_exptl_crystal_size_min          0.265
_platon_squeeze_details          ' ?'
_refine_diff_density_max         0.353
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_refine_diff_density_rms         0.075
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     996
_refine_ls_number_reflns         15504
_refine_ls_number_restraints     1326
_refine_ls_restrained_S_all      1.055
_refine_ls_R_factor_gt           0.0661
_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^)+(0.0793P)^2^+3.8039P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1710
_refine_ls_wR_factor_ref         0.1833
_reflns_number_gt                12526
_reflns_number_total             15504
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4dt00021h2.cif
_cod_data_source_block           2
_cod_depositor_comments
'Adding full bibliography for 7029687--7029699.cif.'
_cod_original_cell_volume        4433.0(15)
_cod_database_code               7029688
_refine_ls_r_factor_ref          0.0820