Synthesis of blue light emitting heterocycles <i>via</i> cyclization of 2-pyridine derived 4-azido-r1,2,3-triazoles.
Tsyrenova, Biligma D.; Khrustalev, Victor N.; Nenajdenko, Valentine G.; Organic & biomolecular chemistry 19 (2021) 8140–8152; doi:10.1039/d1ob01084k

data_7158242
_publ_section_title
;
 Synthesis of blue light emitting heterocycles <i>via</i> cyclization of
 2-pyridine derived 4-azido-r1,2,3-triazoles.
;
_journal_issue                   37
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              8140
_journal_page_last               8152
_journal_paper_doi               10.1039/d1ob01084k
_journal_volume                  19
_journal_year                    2021
_chemical_formula_moiety         'C13 H9 N7'
_chemical_formula_sum            'C13 H9 N7'
_chemical_formula_weight         263.27
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     difmap
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2013
_audit_update_record
;
2021-04-26 deposited with the CCDC.	2021-08-16 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 99.909(12)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   4.3400(9)
_cell_length_b                   25.450(5)
_cell_length_c                   11.540(2)
_cell_measurement_reflns_used    600
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      24.0
_cell_measurement_theta_min      1.8
_cell_volume                     1255.6(4)
_computing_cell_refinement       'iMosflm (Battye et al., 2011)'
_computing_data_collection       'Marccd (Doyle, 2011)'
_computing_data_reduction        iMosflm
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2015)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Rayonix SX165 CCD'
_diffrn_measurement_method       '/f scan'
_diffrn_radiation_type           synchrotron
_diffrn_radiation_wavelength     0.79313
_diffrn_reflns_av_R_equivalents  0.0715
_diffrn_reflns_av_unetI/netI     0.0452
_diffrn_reflns_Laue_measured_fraction_full 0.989
_diffrn_reflns_Laue_measured_fraction_max 0.991
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       32
_diffrn_reflns_limit_k_min       -33
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            15588
_diffrn_reflns_point_group_measured_fraction_full 0.989
_diffrn_reflns_point_group_measured_fraction_max 0.991
_diffrn_reflns_theta_full        28.417
_diffrn_reflns_theta_max         30.939
_diffrn_reflns_theta_min         1.786
_exptl_absorpt_coefficient_mu    0.118
_exptl_absorpt_correction_T_max  0.979
_exptl_absorpt_correction_T_min  0.972
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Scala (Evans, 2006)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.393
_exptl_crystal_description       prism
_exptl_crystal_F_000             544
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.153
_refine_diff_density_min         -0.146
_refine_diff_density_rms         0.032
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.013
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     181
_refine_ls_number_reflns         2846
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.013
_refine_ls_R_factor_all          0.1306
_refine_ls_R_factor_gt           0.0572
_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^)+(0.0937P)^2^+0.007P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1423
_refine_ls_wR_factor_ref         0.1853
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1355
_reflns_number_total             2846
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1ob01084k2.cif
_cod_data_source_block           2a
_cod_depositor_comments
'Adding full bibliography for 7158242--7158244.cif.'
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7158242
_shelx_estimated_absorpt_t_min   0.982
_shelx_estimated_absorpt_t_max   0.986
_shelxl_version_number           2013-4
_shelx_res_checksum              15477