Reductive N‒N bond cleavage and coupling of organic azides mediated by chromium(i) and vanadium(i) β-diketiminate
Lin, Kuan-Ming; Wang, Po-Yang; Shieh, Yun-Jen; Chen, Hong-Zhang; Kuo, Ting-Shen; Tsai, Yi-Chou; New Journal of Chemistry 34 (2010) 1737–; doi:10.1039/c0nj00114g

data_7053504
_publ_section_title
;
 Reductive N--N bond cleavage and coupling of organic azides mediated by
 chromium(i) and vanadium(i) \b-diketiminate
;
_journal_issue                   8
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              1737
_journal_paper_doi               10.1039/c0nj00114g
_journal_volume                  34
_journal_year                    2010
_chemical_formula_moiety         'C35 H59 N4 Si2 V'
_chemical_formula_sum            'C35 H59 N4 Si2 V'
_chemical_formula_weight         642.98
_chemical_name_systematic
;
?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 96.0850(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   18.3009(6)
_cell_length_b                   10.2668(3)
_cell_length_c                   20.8551(7)
_cell_measurement_reflns_used    18833
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      25.35
_cell_measurement_theta_min      2.037
_cell_volume                     3896.4(2)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction        'HKL Denzo and Scalepack'
_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-86 (Sheldrick, 1986)'
_diffrn_ambient_temperature      200(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.970
_diffrn_measured_fraction_theta_max 0.970
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'CCD rotation images, thick slices'
_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  0.0860
_diffrn_reflns_av_sigmaI/netI    0.0892
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            22517
_diffrn_reflns_theta_full        25.33
_diffrn_reflns_theta_max         25.33
_diffrn_reflns_theta_min         2.24
_exptl_absorpt_coefficient_mu    0.343
_exptl_absorpt_correction_T_max  0.9839
_exptl_absorpt_correction_T_min  0.9142
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
?
;
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.096
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1392
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.841
_refine_diff_density_min         -0.687
_refine_diff_density_rms         0.206
_refine_ls_extinction_coef       0.0186(17)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.045
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     376
_refine_ls_number_reflns         6905
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.045
_refine_ls_R_factor_all          0.1308
_refine_ls_R_factor_gt           0.0747
_refine_ls_shift/su_max          0.008
_refine_ls_shift/su_mean         0.018
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1175P)^2^+1.9610P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1789
_refine_ls_wR_factor_ref         0.2253
_reflns_number_gt                4270
_reflns_number_total             6905
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0nj00114g.txt
_cod_data_source_block           7409
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7053504