New pyrazole energetic materials and their energetic salts: combining the dinitromethyl group with nitropyrazole.
Lei, Caijin; Yang, Hongwei; Cheng, Guangbin; Dalton transactions (Cambridge, England : 2003) 49 (2020) 1660–1667; doi:10.1039/c9dt04235k

data_7703656
_publ_section_title
;
 New pyrazole energetic materials and their energetic salts: combining the
 dinitromethyl group with nitropyrazole.
;
_journal_issue                   5
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              1660
_journal_page_last               1667
_journal_paper_doi               10.1039/c9dt04235k
_journal_volume                  49
_journal_year                    2020
_chemical_formula_moiety         'C4 H2 K N5 O6'
_chemical_formula_sum            'C4 H2 K N5 O6'
_chemical_formula_weight         255.21
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     dual
_audit_block_doi                 10.5517/ccdc.csd.cc23dfcb
_audit_creation_date             2019-05-14
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2019-08-21 deposited with the CCDC.	2020-01-07 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 96.881(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.8439(5)
_cell_length_b                   7.8757(5)
_cell_length_c                   13.5483(9)
_cell_measurement_reflns_used    5348
_cell_measurement_temperature    110
_cell_measurement_theta_max      27.513
_cell_measurement_theta_min      2.997
_cell_volume                     830.93(9)
_computing_cell_refinement       'SAINT V8.38A (?, 2016)'
_computing_data_reduction        'SAINT V8.38A (?, 2016)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      110.0
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0413
_diffrn_reflns_av_unetI/netI     0.0299
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            9948
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.512
_diffrn_reflns_theta_min         2.616
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.669
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.6643
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.1143 before and 0.0566 after correction. The Ratio of minimum to maximum transmission is 0.8910. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    2.040
_exptl_crystal_description       block
_exptl_crystal_F_000             512
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.387
_refine_diff_density_min         -0.300
_refine_diff_density_rms         0.060
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.950
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     149
_refine_ls_number_reflns         1904
_refine_ls_number_restraints     128
_refine_ls_restrained_S_all      0.918
_refine_ls_R_factor_all          0.0350
_refine_ls_R_factor_gt           0.0274
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0288P)^2^+0.8060P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0631
_refine_ls_wR_factor_ref         0.0684
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1665
_reflns_number_total             1904
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9dt04235k2.cif
_cod_data_source_block           22019535_0m
_cod_database_code               7703656
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.967
_shelx_estimated_absorpt_t_min   0.924
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
2. Rigid bond restraints
 All non-hydrogen atoms
 with sigma for 1-2 distances of 0.01 and sigma for 1-3 distances of 0.01
3. Uiso/Uaniso restraints and constraints
All non-hydrogen atoms have similar U: within 2A with sigma of 0.04 and sigma
for terminal atoms of 0.08
4.a Aromatic/amide H refined with riding coordinates:
 C3(H3)
;
_olex2_submission_special_instructions 'No special instructions were received'