Alkali metal salts of 3,6-dinitramino-1,2,4,5-tetrazine: promising nitrogen-rich energetic materials
Zhang, Tianhe; Du, Jiang; Li, Zhimin; Lin, Xinyu; Wang, Lin; Yang, Li; Zhang, Tonglai; CrystEngComm 21 (2019) 765–; doi:10.1039/C8CE01827H

data_7231976
_publ_section_title
;
 Alkali metal salts of 3,6-dinitramino-1,2,4,5-tetrazine: promising
 nitrogen-rich energetic materials
;
_journal_issue                   4
_journal_name_full               CrystEngComm
_journal_page_first              765
_journal_paper_doi               10.1039/C8CE01827H
_journal_volume                  21
_journal_year                    2019
_chemical_formula_moiety         '0.25(C8 H8 K8 N32 O20)'
_chemical_formula_sum            'C2 H2 K2 N8 O5'
_chemical_formula_weight         296.32
_space_group_crystal_system      orthorhombic
_space_group_IT_number           52
_space_group_name_Hall           '-P 2a 2bc'
_space_group_name_H-M_alt        'P n n a'
_symmetry_space_group_name_Hall  '-P 2a 2bc'
_symmetry_space_group_name_H-M   'P n n a'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     dual
_audit_creation_date             2017-10-13
_audit_creation_method
;
Olex2 1.2
(compiled 2017.08.10 svn.r3458 for OlexSys, GUI svn.r5381)
;
_audit_update_record
;
2018-03-26 deposited with the CCDC.
2018-12-07 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   24.506(5)
_cell_length_b                   8.0284(16)
_cell_length_c                   4.7044(9)
_cell_measurement_reflns_used    2910
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      27.4816
_cell_measurement_theta_min      1.6620
_cell_volume                     925.6(3)
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      153.15
_diffrn_measured_fraction_theta_full 0.978
_diffrn_measured_fraction_theta_max 0.981
_diffrn_measurement_device_type  'multiwire proportional'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0373
_diffrn_reflns_av_unetI/netI     0.0193
_diffrn_reflns_Laue_measured_fraction_full 0.978
_diffrn_reflns_Laue_measured_fraction_max 0.981
_diffrn_reflns_limit_h_max       31
_diffrn_reflns_limit_h_min       -31
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       6
_diffrn_reflns_limit_l_min       -6
_diffrn_reflns_number            6346
_diffrn_reflns_point_group_measured_fraction_full 0.978
_diffrn_reflns_point_group_measured_fraction_max 0.981
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.467
_diffrn_reflns_theta_min         3.033
_exptl_absorpt_coefficient_mu    1.056
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.8667
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'CrystalClear (Rigaku Inc., 2008)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    2.127
_exptl_crystal_description       block
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_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.374
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_refine_diff_density_rms         0.064
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.166
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     79
_refine_ls_number_reflns         1044
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.166
_refine_ls_R_factor_all          0.0360
_refine_ls_R_factor_gt           0.0356
_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^)+(0.0341P)^2^+1.0750P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0881
_refine_ls_wR_factor_ref         0.0884
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1035
_reflns_number_total             1044
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8ce01827h2.cif
_cod_data_source_block           bwn17226a
_cod_depositor_comments
'Adding full bibliography for 7231971--7231978.cif.'
_cod_original_cell_volume        925.5(3)
_cod_database_code               7231976
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_max   0.858
_shelx_estimated_absorpt_t_min   0.793
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All O(H) groups
2.a Riding coordinates:
 O3(H3)
;
_olex2_submission_special_instructions 'No special instructions were received'