Stable hemiaminals containing a triazole ring
Barys, Maciej; Ciunik, Zbigniew; Drabent, Krzysztof; Kwiecień, Anna; New Journal of Chemistry 34 (2010) 2605–; doi:10.1039/c0nj00346h

data_7053643
_publ_section_title
;
 Stable hemiaminals containing a triazole ring
;
_journal_issue                   11
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              2605
_journal_paper_doi               10.1039/c0nj00346h
_journal_volume                  34
_journal_year                    2010
_chemical_formula_moiety         'C9 H6 N6 O4'
_chemical_formula_sum            'C9 H6 N6 O4'
_chemical_formula_weight         262.20
_chemical_name_common
N-(2,4-dinitrobenzylidene)-4H-1,2,4-triazole-4-amine
_chemical_name_systematic
;
N-(2,4-dinitrobenzylidene)-4H-1,2,4-triazole-4-amine
;
_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                 91.24(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   16.286(5)
_cell_length_b                   7.007(2)
_cell_length_c                   19.746(6)
_cell_measurement_reflns_used    5577
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      28.75
_cell_measurement_theta_min      3.09
_cell_volume                     2252.8(12)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      295(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.952
_diffrn_measurement_device_type  KM4-CCD
_diffrn_measurement_method       /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  0.0578
_diffrn_reflns_av_sigmaI/netI    0.0694
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            31807
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         28.75
_diffrn_reflns_theta_min         3.08
_exptl_absorpt_coefficient_mu    0.126
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.546
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needles
_exptl_crystal_F_000             1072
_exptl_crystal_size_max          0.19
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.184
_refine_diff_density_min         -0.163
_refine_diff_density_rms         0.035
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.952
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     343
_refine_ls_number_reflns         5577
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.952
_refine_ls_R_factor_all          0.1489
_refine_ls_R_factor_gt           0.0487
_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^)+(0.0566P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0973
_refine_ls_wR_factor_ref         0.1307
_reflns_number_gt                2376
_reflns_number_total             5577
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0nj00346h.txt
_cod_data_source_block           4a
_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 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7053643