Conformational control in the regioselective synthesis of N-2-substituted-1,2,3-triazoles.
Chen, Yunfeng; Liu, Yuxiu; Petersen, Jeffrey L; Shi, Xiaodong; Chemical communications (Cambridge, England)  (2008) 3254–3256; doi:10.1039/b805328f

data_7103238
_publ_section_title
;
 Conformational control in the regioselective synthesis of
 N-2-substituted-1,2,3-triazoles.
;
_journal_issue                   28
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              3254
_journal_page_last               3256
_journal_paper_doi               10.1039/b805328f
_journal_year                    2008
_chemical_formula_sum            'C18 H15 N3 O'
_chemical_formula_weight         289.33
_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                 90.922(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.7985(9)
_cell_length_b                   5.5755(4)
_cell_length_c                   19.3734(13)
_cell_measurement_reflns_used    6868
_cell_measurement_temperature    293(2)
_cell_volume                     1490.27(18)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.959
_diffrn_measured_fraction_theta_max 0.959
_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  0.0364
_diffrn_reflns_av_sigmaI/netI    0.0524
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            9358
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.10
_exptl_absorpt_coefficient_mu    0.083
_exptl_absorpt_correction_T_max  0.973
_exptl_absorpt_correction_T_min  0.963
_exptl_absorpt_correction_type   semi-empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.290
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             608
_exptl_crystal_size_max          0.46
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.34
_refine_diff_density_max         0.214
_refine_diff_density_min         -0.139
_refine_diff_density_rms         0.039
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.042
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     200
_refine_ls_number_reflns         3281
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.042
_refine_ls_R_factor_all          0.0592
_refine_ls_R_factor_gt           0.0498
_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^)+(0.0833P)^2^+0.2107P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1448
_refine_ls_wR_factor_ref         0.1568
_reflns_number_gt                2698
_reflns_number_total             3281
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b805328f.txt
_cod_data_source_block           2a
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7103238