Cu(II)-Catalyzed Oxidative Formation of 5,5'-Bistriazoles.
Brassard, Christopher J.; Zhang, Xiaoguang; Brewer, Christopher R.; Liu, Peiye; Clark, Ronald J.; Zhu, Lei; The Journal of organic chemistry 81 (2016) 12091–12105; doi:10.1021/acs.joc.6b01907

data_4037282
_publ_section_title
;
 Cu(II)-Catalyzed Oxidative Formation of 5,5'-Bistriazoles.
;
_journal_issue                   24
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              12091
_journal_page_last               12105
_journal_paper_doi               10.1021/acs.joc.6b01907
_journal_volume                  81
_journal_year                    2016
_chemical_formula_moiety         'C34 H32 N6'
_chemical_formula_sum            'C34 H32 N6'
_chemical_formula_weight         524.65
_space_group_crystal_system      tetragonal
_space_group_IT_number           92
_space_group_name_Hall           'P 4abw 2nw'
_space_group_name_H-M_alt        'P 41 21 2'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2013
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.0751(2)
_cell_length_b                   9.0751(2)
_cell_length_c                   34.9812(6)
_cell_measurement_reflns_used    7656
_cell_measurement_temperature    203(2)
_cell_measurement_theta_max      30.27
_cell_measurement_theta_min      2.32
_cell_volume                     2880.96(10)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2013 (Sheldrick, 2013)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      203(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0230
_diffrn_reflns_av_unetI/netI     0.0182
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       43
_diffrn_reflns_limit_l_min       -45
_diffrn_reflns_number            15273
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.991
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.474
_diffrn_reflns_theta_min         2.319
_exptl_absorpt_coefficient_mu    0.073
_exptl_absorpt_correction_T_max  0.9923
_exptl_absorpt_correction_T_min  0.9294
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.210
_exptl_crystal_description       polyhedral
_exptl_crystal_F_000             1112
_exptl_crystal_size_max          0.248
_exptl_crystal_size_mid          0.213
_exptl_crystal_size_min          0.176
_refine_diff_density_max         0.119
_refine_diff_density_min         -0.101
_refine_diff_density_rms         0.023
_refine_ls_abs_structure_details
; 
 Flack x determined using 949 quotients [(I+)-(I-)]/[(I+)+(I-)] 
 (Parsons and Flack (2004), Acta Cryst. A60, s61). 
;
_refine_ls_abs_structure_Flack   1.5(8)
_refine_ls_extinction_coef       0.0035(14)
_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   1.011
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     255
_refine_ls_number_reflns         3290
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.011
_refine_ls_R_factor_all          0.0507
_refine_ls_R_factor_gt           0.0398
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0551P)^2^+0.3112P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1018
_refine_ls_wR_factor_ref         0.1096
_reflns_Friedel_coverage         0.626
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     0.980
_reflns_number_gt                2737
_reflns_number_total             3290
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo6b01907_si_001.cif
_cod_data_source_block           zhu200bAA
_cod_original_cell_volume        2880.96(14)
_cod_database_code               4037282
_shelx_estimated_absorpt_t_min   0.982
_shelx_estimated_absorpt_t_max   0.987
_shelxl_version_number           2013-4
_shelx_res_checksum              50080
_shelx_hkl_checksum              79024