Ethyl 5-methyl-1-(4-nitrophenyl)-1<i>H</i>-1,2,3-triazole-4-carboxylate
Fun, Hoong-Kun; Quah, Ching Kheng; Nithinchandra; Kalluraya, Balakrishna; Acta Crystallographica Section E 67 (2011) o2416–; doi:10.1107/S1600536811033940

data_2231522
_publ_section_title
;
 Ethyl
 5-methyl-1-(4-nitrophenyl)-1<i>H</i>-1,2,3-triazole-4-carboxylate
;
_journal_coeditor_code           HB6375
_journal_issue                   9
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o2416
_journal_paper_doi               10.1107/S1600536811033940
_journal_volume                  67
_journal_year                    2011
_chemical_formula_iupac          'C12 H12 N4 O4'
_chemical_formula_moiety         'C12 H12 N4 O4'
_chemical_formula_sum            'C12 H12 N4 O4'
_chemical_formula_weight         276.26
_chemical_name_systematic
;
Ethyl 5-methyl-1-(4-nitrophenyl)-1<i>H</i>-1,2,3-triazole-4-carboxylate
;
_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                 99.5740(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.5309(3)
_cell_length_b                   7.3014(2)
_cell_length_c                   12.6058(3)
_cell_measurement_reflns_used    8459
_cell_measurement_temperature    100
_cell_measurement_theta_max      32.56
_cell_measurement_theta_min      3.05
_cell_volume                     1228.04(5)
_computing_cell_refinement       'SAINT (Bruker, 2009)'
_computing_data_collection       'APEX2 (Bruker, 2009)'
_computing_data_reduction        'SAINT (Bruker, 2009)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material
'SHELXTL  (Sheldrick, 2008) and PLATON (Spek, 2009)'
_computing_structure_refinement  'SHELXTL (Sheldrick, 2008)'
_computing_structure_solution    'SHELXTL (Sheldrick, 2008)'
_diffrn_ambient_temperature      100
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker SMART APEXII CCD'
_diffrn_measurement_method       '\f and \w 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  0.0209
_diffrn_reflns_av_sigmaI/netI    0.0240
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            16800
_diffrn_reflns_theta_full        32.64
_diffrn_reflns_theta_max         32.64
_diffrn_reflns_theta_min         3.05
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.115
_exptl_absorpt_correction_T_max  0.982
_exptl_absorpt_correction_T_min  0.944
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(<i>SADABS</i>; Bruker, 2009)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.494
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             576
_exptl_crystal_size_max          0.504
_exptl_crystal_size_mid          0.162
_exptl_crystal_size_min          0.158
_refine_diff_density_max         0.411
_refine_diff_density_min         -0.303
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.033
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     183
_refine_ls_number_reflns         4469
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.033
_refine_ls_R_factor_all          0.0506
_refine_ls_R_factor_gt           0.0398
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0579P)^2^+0.3698P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1043
_refine_ls_wR_factor_ref         0.1139
_reflns_number_gt                3699
_reflns_number_total             4469
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            hb6375.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2231522
_cod_database_fobs_code          2231522