A fully automated, multistep flow synthesis of 5-amino-4-cyano-1,2,3-triazoles.
Smith, Catherine J.; Nikbin, Nikzad; Ley, Steven V.; Lange, Heiko; Baxendale, Ian R.; Organic & biomolecular chemistry 9 (2011) 1938–1947; doi:10.1039/C0OB00815J

data_7151701
_publ_section_title
;
 A fully automated, multistep flow synthesis of
 5-amino-4-cyano-1,2,3-triazoles.
;
_journal_issue                   6
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              1938
_journal_page_last               1947
_journal_paper_doi               10.1039/C0OB00815J
_journal_volume                  9
_journal_year                    2011
_chemical_formula_moiety         'C10 H9 N5 O'
_chemical_formula_sum            'C10 H9 N5 O'
_chemical_formula_weight         215.22
_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                 94.99(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   27.8326(7)
_cell_length_b                   6.2301(2)
_cell_length_c                   11.8916(3)
_cell_measurement_reflns_used    6875
_cell_measurement_temperature    180(2)
_cell_measurement_theta_max      32.03
_cell_measurement_theta_min      1.02
_cell_volume                     2054.19(14)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius B.V. 1998)'
_computing_data_reduction
;
HKL Denzo and Scalepack (Otwinowski & Minor 1997)
;
_computing_publication_material  'SHELXL-97 (Sheldrick 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick 1997)'
_computing_structure_solution    'SIR-92 (Altomare et al. 1994)'
_diffrn_ambient_temperature      180(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       'Thin slice \w and \f scans'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0360
_diffrn_reflns_av_sigmaI/netI    0.0356
_diffrn_reflns_limit_h_max       41
_diffrn_reflns_limit_h_min       -40
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            10352
_diffrn_reflns_theta_full        32.00
_diffrn_reflns_theta_max         32.00
_diffrn_reflns_theta_min         3.62
_exptl_absorpt_coefficient_mu    0.098
_exptl_absorpt_correction_T_max  0.990
_exptl_absorpt_correction_T_min  0.910
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
multi-scan from symmetry-related measurements
Sortav (Blessing 1995)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.392
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             896
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.344
_refine_diff_density_min         -0.241
_refine_diff_density_rms         0.046
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.043
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     146
_refine_ls_number_reflns         3544
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.043
_refine_ls_R_factor_all          0.0593
_refine_ls_R_factor_gt           0.0465
_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^)+(0.0530P)^2^+1.4080P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1161
_refine_ls_wR_factor_ref         0.1257
_reflns_number_gt                2918
_reflns_number_total             3544
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            C0OB00815J.TXT
_cod_data_source_block           sl0926
_cod_original_cell_volume        2054.20(15)
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7151701