4-Heptamethyleneimino-7-nitrobenzo-2-oxa-1,3-diazole
Satyen Saha; Anunay Samanta; Acta Crystallographica Section C 55 (1999) 252–254; doi:10.1107/S0108270198012128

data_2008144
_publ_section_title
;
 4-Heptamethyleneimino-7-nitrobenzo-2-oxa-1,3-diazole
;
_journal_issue                   2
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              252
_journal_page_last               254
_journal_paper_doi               10.1107/S0108270198012128
_journal_volume                  55
_journal_year                    1999
_chemical_formula_moiety         'C13 H16 N4 O3'
_chemical_formula_sum            'C13 H16 N4 O3'
_chemical_formula_weight         276.30
_chemical_name_common
4-Heptamethyleneimino-7-nitrobenzo-2-oxa-1,3-diazole
_chemical_name_systematic
;
4-Heptamethyleneimino-7-nitrobenzo-2-oxa-1,3-diazole
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_cell_angle_alpha                93.677(9)
_cell_angle_beta                 98.114(16)
_cell_angle_gamma                90.359(14)
_cell_formula_units_Z            4
_cell_length_a                   6.685(2)
_cell_length_b                   13.2357(11)
_cell_length_c                   14.8763(19)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      24.97
_cell_measurement_theta_min      1.54
_cell_volume                     1300.2(4)
_computing_cell_refinement       'CAD-4 Software'
_computing_data_collection       'CAD-4 Software (Enraf-Nonius, 1989)'
_computing_data_reduction        'Xtal3.5 (Hall et al., 199?)'
_computing_molecular_graphics    'ORTEX (McArdle, 1995)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Enraf-Nonius CAD-4'
_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  0.000
_diffrn_reflns_av_sigmaI/netI    0.0320
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            4562
_diffrn_reflns_theta_full        24.97
_diffrn_reflns_theta_max         24.97
_diffrn_reflns_theta_min         1.54
_diffrn_standards_decay_%        none
_diffrn_standards_interval_time  90
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.103
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.412
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_size_max          0.64
_exptl_crystal_size_mid          0.44
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.468
_refine_diff_density_min         -0.253
_refine_ls_extinction_coef       0.0070(16)
_refine_ls_extinction_method     SHELXL97
_refine_ls_goodness_of_fit_ref   0.998
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     302
_refine_ls_number_reflns         2806
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.998
_refine_ls_R_factor_all          0.083
_refine_ls_R_factor_gt           0.050
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0610P)^2^+0.9105P] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.148
_reflns_number_gt                2806
_reflns_number_total             4562
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            de1090.cif
_cod_data_source_block           8nbd
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc w =
1/[\s^2^(Fo^2^)+(0.0610P)^2^+0.9105P] where P = (Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to 'w =
1/[\s^2^(Fo^2^)+(0.0610P)^2^+0.9105P] where P = (Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        1300.3(5)
_cod_database_code               2008144
_cod_database_fobs_code          2008144