Ethyl 6-methyl-8-phenyl-1,2,4-triazolo[1,5-<i>a</i>]pyridine-7-carboxylate
Li, Yang; Sun, Chen; Zhang, Ran; Acta Crystallographica Section E 69 (2013) o1812–; doi:10.1107/S1600536813031152

data_2238918
_publ_section_title
;
 Ethyl
 6-methyl-8-phenyl-1,2,4-triazolo[1,5-<i>a</i>]pyridine-7-carboxylate
;
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1812
_journal_paper_doi               10.1107/S1600536813031152
_journal_volume                  69
_journal_year                    2013
_chemical_formula_iupac          'C16 H15 N3 O2'
_chemical_formula_moiety         'C16 H15 N3 O2'
_chemical_formula_sum            'C16 H15 N3 O2'
_chemical_formula_weight         281.31
_chemical_name_systematic
;
Ethyl 6-methyl-8-phenyl-1,2,4-triazolo[1,5-<i>a</i>]pyridine-7-carboxylate
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 98.986(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.401(3)
_cell_length_b                   7.4825(19)
_cell_length_c                   15.068(4)
_cell_measurement_reflns_used    3034
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      25.11
_cell_measurement_theta_min      2.74
_cell_volume                     1492.4(6)
_computing_cell_refinement       'SAINT (Bruker, 1999)'
_computing_data_collection       'SMART (Bruker, 1998)'
_computing_data_reduction        'SAINT (Bruker, 1999)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Brucker SMART APEXII CCD area-detector'
_diffrn_measurement_method       'phi and omega 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  0.0858
_diffrn_reflns_av_sigmaI/netI    0.0580
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            7312
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.89
_exptl_absorpt_coefficient_mu    0.085
_exptl_absorpt_correction_T_max  0.9874
_exptl_absorpt_correction_T_min  0.9807
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 1999)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.252
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             592
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.224
_refine_diff_density_min         -0.231
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.049
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     192
_refine_ls_number_reflns         2611
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.049
_refine_ls_R_factor_all          0.0656
_refine_ls_R_factor_gt           0.0489
_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^)+(0.0730P)^2^+0.2662P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1341
_refine_ls_wR_factor_ref         0.1517
_reflns_number_gt                1920
_reflns_number_total             2611
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            rz5092.cif
_cod_data_source_block           I
_cod_original_cell_volume        1492.4(7)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2238918