1,2,3-Triazoles from carbonyl azides and alkynes: filling the gap
Estela Haldon; Eleuterio Alvarez; M. Carmen Nicasio; Pedro J. Perez; Chem.Commun. 50 (2014) 8978–; doi:10.1039/C4cc03614J

data_7115393
_publ_section_title
;
 1,2,3-Triazoles from carbonyl azides and alkynes: filling the gap
;
_journal_name_full               Chem.Commun.
_journal_page_first              8978
_journal_paper_doi               10.1039/C4cc03614J
_journal_volume                  50
_journal_year                    2014
_chemical_formula_moiety         'C13 H13 Br N4 O2'
_chemical_formula_sum            'C13 H13 Br N4 O2'
_chemical_formula_weight         337.18
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 95.781(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   28.3878(14)
_cell_length_b                   5.0616(3)
_cell_length_c                   18.7871(12)
_cell_measurement_reflns_used    5622
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      29.62
_cell_measurement_theta_min      2.18
_cell_volume                     2685.7(3)
_computing_cell_refinement       'APEX2 Software Suite (Bruker, 2007)'
_computing_data_collection       'APEX2 Software Suite (Bruker, 2007)'
_computing_data_reduction        'APEX2 Software Suite (Bruker, 2007)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL and publCIF (Westrip, 2010)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR2002 (Burla et al., 2003)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 8.26
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type
;
  Bruker-Nonius X8kappa APEX II CCD area detector'
;
_diffrn_measurement_method       'phi and omega scans with narrow frames'
_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  0.0418
_diffrn_reflns_av_sigmaI/netI    0.0339
_diffrn_reflns_limit_h_max       34
_diffrn_reflns_limit_h_min       -34
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            12029
_diffrn_reflns_theta_full        25.25
_diffrn_reflns_theta_max         25.25
_diffrn_reflns_theta_min         2.49
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    3.068
_exptl_absorpt_correction_T_max  0.7359
_exptl_absorpt_correction_T_min  0.5807
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
program SADABS, Bruker (2001).
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.668
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1360
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.871
_refine_diff_density_min         -0.622
_refine_diff_density_rms         0.082
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.007
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     181
_refine_ls_number_reflns         2248
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.007
_refine_ls_R_factor_all          0.0420
_refine_ls_R_factor_gt           0.0351
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0599P)^2^+4.2100P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0905
_refine_ls_wR_factor_ref         0.0939
_reflns_number_gt                1967
_reflns_number_total             2248
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4cc03614j2.cif
_cod_data_source_block           4
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               7115393