1,3,4-Oxadiazole based thermostable energetic materials: synthesis and structure–property relationship
Yan, Tingou; Cheng, Guangbin; Yang, Hongwei; New Journal of Chemistry 44 (2020) 6643–6651; doi:10.1039/D0NJ00518E

data_7059427
_publ_section_title
;
 1,3,4-Oxadiazole based thermostable energetic materials: synthesis and
 structure--property relationship
;
_journal_issue                   16
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              6643
_journal_page_last               6651
_journal_paper_doi               10.1039/D0NJ00518E
_journal_volume                  44
_journal_year                    2020
_chemical_formula_moiety         'C8 H3 N9 O7, C3 H6 O'
_chemical_formula_sum            'C11 H9 N9 O8'
_chemical_formula_weight         395.27
_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_creation_date             2019-04-18
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2019-10-18 deposited with the CCDC.	2020-03-26 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 99.4370(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.6229(4)
_cell_length_b                   5.9755(2)
_cell_length_c                   19.6403(6)
_cell_measurement_reflns_used    6196
_cell_measurement_temperature    100
_cell_measurement_theta_max      27.453
_cell_measurement_theta_min      2.787
_cell_volume                     1577.15(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      100.0
_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  0.0781
_diffrn_reflns_av_unetI/netI     0.0593
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            18206
_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         27.526
_diffrn_reflns_theta_min         2.382
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.144
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.4215
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Bruker,2016/2) was used for absorption correction. wR2(int) was 0.1458 before and 0.0759 after correction. The Ratio of minimum to maximum transmission is 0.5653. The \l/2 correction factor is Not present.'
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.665
_exptl_crystal_description       block
_exptl_crystal_F_000             808
_exptl_crystal_size_max          0.19
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.302
_refine_diff_density_min         -0.352
_refine_diff_density_rms         0.065
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     263
_refine_ls_number_reflns         3629
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0672
_refine_ls_R_factor_gt           0.0473
_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^)+(0.0436P)^2^+1.0797P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1069
_refine_ls_wR_factor_ref         0.1207
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2780
_reflns_number_total             3629
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0nj00518e2.cif
_cod_data_source_block           22019414_0m
_cod_depositor_comments
;Adding full bibliography for 7059427--7059434.cif.

 Adding full bibliography for 7059427--7059434.cif.
;
_cod_database_code               7059427
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.983
_shelx_estimated_absorpt_t_min   0.973
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C7(H7A)
2.b Idealised Me refined as rotating group:
 C11(H11A,H11B,H11C), C10(H10A,H10B,H10C)
;
_olex2_submission_special_instructions 'No special instructions were received'