<i>cis</i>-2,4-Dinitro-6,8-dipropionyl-1<i>H</i>,5<i>H</i>-2,4,6,8-tetraazabicyclo[3.3.0]octane, a precursor of the energetic compound `bicyclo-HMX'
Gilardi, Richard; George, Clifford; Evans, Robin; Acta Crystallographica Section E 58 (2002) o969–o971; doi:10.1107/S1600536802013570

data_2201710
_publ_section_title
;<i>cis</i>-2,4-Dinitro-6,8-dipropionyl-1<i>H</i>,5<i>H</i>-2,4,6,8-tetraazabicyclo[3.3.0]octane,
 a precursor of the energetic compound `bicyclo-HMX'
;
_journal_issue                   9
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o969
_journal_page_last               o971
_journal_paper_doi               10.1107/S1600536802013570
_journal_volume                  58
_journal_year                    2002
_chemical_formula_iupac          'C10 H16 N6 O6'
_chemical_formula_moiety         'C10 H16 N6 O6'
_chemical_formula_sum            'C10 H16 N6 O6'
_chemical_formula_weight         316.29
_chemical_name_systematic
;
cis-(1H,5H)-2,4-dinitro-6,8-dipropionyl-2,4,6,8-tetraazabicyclo[3.3.0]octane
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 106.5390(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   23.8006(4)
_cell_length_b                   6.16110(10)
_cell_length_c                   20.2972(4)
_cell_measurement_reflns_used    5104
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      67.0
_cell_measurement_theta_min      3.9
_cell_volume                     2853.20(9)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART (Bruker, 2001)'
_computing_data_reduction        'SAINT (Bruker, 2001)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 1997)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      295(2)
_diffrn_measured_fraction_theta_full 0.943
_diffrn_measured_fraction_theta_max 0.943
_diffrn_measurement_device_type  'Bruker 6K CCD area-detector'
_diffrn_measurement_method       '\f and \w'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.032
_diffrn_reflns_av_sigmaI/netI    0.034
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            7129
_diffrn_reflns_theta_full        67.0
_diffrn_reflns_theta_max         67.0
_diffrn_reflns_theta_min         4.5
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.06
_exptl_absorpt_correction_T_max  0.969
_exptl_absorpt_correction_T_min  0.744
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2001)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.473
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1328
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.22
_refine_diff_density_min         -0.22
_refine_ls_extinction_coef       0.0046(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL97
_refine_ls_goodness_of_fit_ref   1.08
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     219
_refine_ls_number_reflns         2410
_refine_ls_number_restraints     9
_refine_ls_restrained_S_all      1.08
_refine_ls_R_factor_all          0.054
_refine_ls_R_factor_gt           0.051
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w = 1/[\s^2^(Fo^2^)+(0.0533P)^2^+4.0092P] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.136
_refine_ls_wR_factor_ref         0.139
_reflns_number_gt                2178
_reflns_number_total             2410
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ya6117.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      'C 2/c'
_cod_database_code               2201710
_cod_database_fobs_code          2201710