Oxo- and imido-alkoxide vanadium complexes as precatalysts for the guanylation of aromatic amines.
Romero-Fernández, Javier; Carrillo-Hermosilla, Fernando; Antiñolo, Antonio; Alonso-Moreno, Carlos; Rodríguez, Ana M; López-Solera, Isabel; Otero, Antonio; Dalton transactions (Cambridge, England : 2003) 39 (2010) 6419–6425; doi:10.1039/c0dt00064g

data_7025941
_publ_section_title
;
 Oxo- and imido-alkoxide vanadium complexes as precatalysts for the
 guanylation of aromatic amines.
;
_journal_issue                   28
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              6419
_journal_page_last               6425
_journal_paper_doi               10.1039/c0dt00064g
_journal_volume                  39
_journal_year                    2010
_chemical_formula_moiety         'C26 H40 Cl4 N2 O2 V2'
_chemical_formula_sum            'C26 H40 Cl4 N2 O2 V2'
_chemical_formula_weight         656.28
_chemical_name_systematic
;
?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_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                90.144(6)
_cell_angle_beta                 91.537(6)
_cell_angle_gamma                115.928(5)
_cell_formula_units_Z            2
_cell_length_a                   8.7453(19)
_cell_length_b                   9.890(2)
_cell_length_c                   21.010(5)
_cell_measurement_temperature    180(2)
_cell_volume                     1633.5(6)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      180(2)
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'omega and phi scans'
_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  0.0618
_diffrn_reflns_av_sigmaI/netI    0.0805
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            19261
_diffrn_reflns_theta_full        26.43
_diffrn_reflns_theta_max         26.43
_diffrn_reflns_theta_min         1.94
_exptl_absorpt_coefficient_mu    0.923
_exptl_absorpt_correction_T_max  0.8369
_exptl_absorpt_correction_T_min  0.7205
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.334
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             680
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.520
_refine_diff_density_min         -0.619
_refine_diff_density_rms         0.156
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.006
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     335
_refine_ls_number_reflns         6624
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.006
_refine_ls_R_factor_all          0.1281
_refine_ls_R_factor_gt           0.0661
_refine_ls_shift/su_max          0.028
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1284P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1870
_refine_ls_wR_factor_ref         0.2349
_reflns_number_gt                3578
_reflns_number_total             6624
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0dt00064g.txt
_cod_data_source_block           7
_cod_original_cell_volume        1633.4(6)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7025941