Isoprene polymerization mediated by vanadium-[ONNO] complexes.
Phuphuak, Yupin; Bonnet, Fanny; Vendier, Laure; Lorber, Christian; Zinck, Philippe; Dalton transactions (Cambridge, England : 2003) 45 (2016) 12069–12077; doi:10.1039/c6dt02288j

data_7039688
_publ_section_title
;
 Isoprene polymerization mediated by vanadium-[ONNO] complexes.
;
_journal_issue                   30
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              12069
_journal_page_last               12077
_journal_paper_doi               10.1039/c6dt02288j
_journal_volume                  45
_journal_year                    2016
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C40 H68 N2 O4 V'
_chemical_formula_sum            'C40 H68 N2 O4 V'
_chemical_formula_weight         691.90
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_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_date             2016-01-26T16:40:15-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_audit_update_record
;
2016-04-11 deposited with the CCDC.
2016-06-24 downloaded from the CCDC.
;
_cell_angle_alpha                80.983(2)
_cell_angle_beta                 89.501(2)
_cell_angle_gamma                70.128(2)
_cell_formula_units_Z            4
_cell_length_a                   14.3277(6)
_cell_length_b                   16.0650(8)
_cell_length_c                   19.7602(10)
_cell_measurement_reflns_used    9945
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      22.45
_cell_measurement_theta_min      2.46
_cell_measurement_wavelength     0.71073
_cell_volume                     4219.7(4)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker Kappa APEX II'
_diffrn_measurement_method       \w-\f
_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  0.109
_diffrn_reflns_av_unetI/netI     0.0702
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            127970
_diffrn_reflns_theta_full        24.71
_diffrn_reflns_theta_max         24.71
_diffrn_reflns_theta_min         2.64
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.272
_exptl_absorpt_correction_T_max  0.9897
_exptl_absorpt_correction_T_min  0.9152
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
        [c.f. r.h. blessing, acta cryst. (1995), a51, 33-38]
;
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.089
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       platelet
_exptl_crystal_F_000             1508
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.02
_platon_squeeze_details
;
;
_refine_diff_density_max         0.622
_refine_diff_density_min         -0.537
_refine_diff_density_rms         0.079
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.055
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     865
_refine_ls_number_reflns         14365
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.056
_refine_ls_R_factor_all          0.0935
_refine_ls_R_factor_gt           0.0617
_refine_ls_shift/su_max          0
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0845P)^2^+1.6418P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1463
_refine_ls_wR_factor_ref         0.1596
_reflns_number_gt                10367
_reflns_number_total             14365
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c6dt02288j2.cif
_cod_data_source_block           CL2148
_cod_depositor_comments
'Adding full bibliography for 7039687--7039688.cif.'
_cod_original_cell_volume        4219.7(3)
_cod_database_code               7039688