Facile and selective polynitrations at the 4-pyrazolyl dual backbone: A straightforward access to a series of high-density energetic materials
Domasevitch, Konstantin V.; Gospodinov, Ivan; Krautscheid, Harald; Klapoetke, Thomas M.; Stierstorfer, Joerg; New Journal of Chemistry 43 (2019) 1305–1312; doi:10.1039/C8NJ05266B

data_7058020
_publ_section_title
;
 Facile and selective polynitrations at the 4-pyrazolyl dual backbone: A
 straightforward access to a series of high-density energetic materials
;
_journal_issue                   3
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              1305
_journal_page_last               1312
_journal_paper_doi               10.1039/C8NJ05266B
_journal_volume                  43
_journal_year                    2019
_chemical_formula_moiety         'C6 H4 N6 O4'
_chemical_formula_sum            'C6 H4 N6 O4'
_chemical_formula_weight         224.15
_chemical_name_systematic
;
3,5-Dinitro-4,4'-bipyrazole
;
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2018-04-11 deposited with the CCDC.
2018-12-06 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 107.434(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   6.1653(7)
_cell_length_b                   15.7789(12)
_cell_length_c                   8.7387(10)
_cell_measurement_reflns_used    3458
_cell_measurement_temperature    213(2)
_cell_measurement_theta_max      27.942
_cell_measurement_theta_min      3.555
_cell_volume                     811.06(15)
_computing_cell_refinement       'IPDS Software (Stoe & Cie, 2000)'
_computing_data_collection       'IPDS Software (Stoe & Cie, 2000)'
_computing_data_reduction        'IPDS Software (Stoe & Cie, 2000)'
_computing_molecular_graphics    'Diamond 2.1e (Brandenburg, 1999)'
_computing_publication_material  'WinGX 1.70.01 (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      213(2)
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.985
_diffrn_measurement_device_type  'Stoe Image Plate Diffraction System'
_diffrn_measurement_method       '\f oscillation scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0235
_diffrn_reflns_av_unetI/netI     0.0188
_diffrn_reflns_Laue_measured_fraction_full 0.988
_diffrn_reflns_Laue_measured_fraction_max 0.985
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            3458
_diffrn_reflns_point_group_measured_fraction_full 0.988
_diffrn_reflns_point_group_measured_fraction_max 0.985
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.942
_diffrn_reflns_theta_min         3.555
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.157
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            pale-yellow
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_exptl_crystal_description       plate
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_exptl_crystal_size_max          0.270
_exptl_crystal_size_mid          0.250
_exptl_crystal_size_min          0.220
_refine_diff_density_max         0.344
_refine_diff_density_min         -0.193
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.089
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     82
_refine_ls_number_reflns         959
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.089
_refine_ls_R_factor_all          0.0387
_refine_ls_R_factor_gt           0.0337
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0604P)^2^+0.1849P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0896
_refine_ls_wR_factor_ref         0.0910
_reflns_Friedel_coverage         0.000
_reflns_number_gt                835
_reflns_number_total             959
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8nj05266b2.cif
_cod_data_source_block           3
_cod_database_code               7058020
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.959
_shelx_estimated_absorpt_t_max   0.966
_shelx_res_checksum              21420
_shelx_hkl_checksum              80627