Methyl 1<i>H</i>-1,2,3-triazole-4-carboxylate
Prabakaran, K.; Maiyalagan, T.; Hathwar, Venkatesha R.; Kazak, Canan; Khan, F. Nawaz; Acta Crystallographica Section E 65 (2009) o300–; doi:10.1107/S1600536809000877

data_2220722
_publ_section_title
;
 Methyl 1<i>H</i>-1,2,3-triazole-4-carboxylate
;
_journal_coeditor_code           BT2847
_journal_issue                   2
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o300
_journal_paper_doi               10.1107/S1600536809000877
_journal_volume                  65
_journal_year                    2009
_chemical_formula_iupac          'C4 H5 N3 O2'
_chemical_formula_moiety         'C4 H5 N3 O2'
_chemical_formula_structural     'C4 H5 N3 O2'
_chemical_formula_sum            'C4 H5 N3 O2'
_chemical_formula_weight         127.11
_chemical_name_systematic
;
Methyl 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 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
_cell_angle_alpha                90
_cell_angle_beta                 100.938(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   3.8823(7)
_cell_length_b                   17.499(3)
_cell_length_c                   8.8171(17)
_cell_measurement_reflns_used    1804
_cell_measurement_temperature    290(2)
_cell_measurement_theta_max      25.45
_cell_measurement_theta_min      2.35
_cell_volume                     588.12(19)
_computing_cell_refinement       'SAINT (Bruker, 2004)'
_computing_data_collection       'SMART (Bruker, 2004)'
_computing_data_reduction        'SAINT (Bruker, 2004)'
_computing_molecular_graphics
'ORTEP-3 (Farrugia, 1999) and CAMERON (Watkin <i>et al.</i>,  1993)'
_computing_publication_material  'PLATON (Spek, 2003)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      290(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker SMART CCD area-detector'
_diffrn_measurement_method       '\f and \w'
_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  0.0160
_diffrn_reflns_av_sigmaI/netI    0.0140
_diffrn_reflns_limit_h_max       4
_diffrn_reflns_limit_h_min       -4
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            4285
_diffrn_reflns_reduction_process
;
;
_diffrn_reflns_theta_full        25.49
_diffrn_reflns_theta_max         25.49
_diffrn_reflns_theta_min         2.33
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.118
_exptl_absorpt_correction_T_max  0.9769
_exptl_absorpt_correction_T_min  0.9556
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2004)'
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.436
_exptl_crystal_density_method    'Not Measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             264
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.195
_refine_diff_density_min         -0.122
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.062
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     91
_refine_ls_number_reflns         1098
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.062
_refine_ls_R_factor_all          0.0475
_refine_ls_R_factor_gt           0.0392
_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^)+(0.0657P)^2^+0.085P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1108
_refine_ls_wR_factor_ref         0.1160
_reflns_number_gt                917
_reflns_number_total             1098
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            bt2847.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2220722
_cod_database_fobs_code          2220722