Experimental Investigation on the Mechanism of Chelation-Assisted, Copper(II) Acetate-Accelerated Azide-Alkyne Cycloaddition
Gui-Chao Kuang; Pampa M. Guha; Wendy S. Brotherton; J. Tyler Simmons; Lisa A. Stankee; Brian T. Nguyen; Ronald J. Clark; Lei Zhu; Journal of the American Chemical Society 133 (2011) 13984–14001; doi:10.1021/ja203733q

data_4106683
_publ_section_title
;
 Experimental Investigation on the Mechanism of Chelation-Assisted,
 Copper(II) Acetate-Accelerated Azide-Alkyne Cycloaddition
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              13984
_journal_page_last               14001
_journal_paper_doi               10.1021/ja203733q
_journal_volume                  133
_journal_year                    2011
_chemical_formula_moiety         'C6 H8 Cu N6 O4'
_chemical_formula_sum            'C6 H8 Cu N6 O4'
_chemical_formula_weight         291.72
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   8.6638(4)
_cell_length_b                   12.9337(7)
_cell_length_c                   18.6880(10)
_cell_measurement_reflns_used    9936
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      29.02
_cell_measurement_theta_min      2.69
_cell_volume                     2094.08(19)
_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-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      153(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.0195
_diffrn_reflns_av_sigmaI/netI    0.0102
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            21361
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.18
_exptl_absorpt_coefficient_mu    2.102
_exptl_absorpt_correction_T_max  0.8843
_exptl_absorpt_correction_T_min  0.6048
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.851
_exptl_crystal_description       Flat
_exptl_crystal_F_000             1176
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.346
_refine_diff_density_min         -0.271
_refine_diff_density_rms         0.053
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.987
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     154
_refine_ls_number_reflns         2396
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.987
_refine_ls_R_factor_all          0.0219
_refine_ls_R_factor_gt           0.0202
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0284P)^2^+1.7287P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0541
_refine_ls_wR_factor_ref         0.0552
_reflns_number_gt                2228
_reflns_number_total             2396
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja203733q_si_003.cif
_cod_data_source_block           zhu88
_cod_original_sg_symbol_Hall     -P2ac2ab
_cod_database_code               4106683