Combination of gem-dinitromethyl functionality and a 5-amino-1,3,4-oxadiazole framework for zwitterionic energetic materials.
Liu, Tianlin; Liao, Sicheng; Song, Siwei; Wang, Kangcai; Jin, Yunhe; Zhang, Qinghua; Chemical communications (Cambridge, England) 56 (2019) 209–212; doi:10.1039/c9cc08182h

data_7125622
_publ_section_title
;
 Combination of gem-dinitromethyl functionality and a
 5-amino-1,3,4-oxadiazole framework for zwitterionic energetic materials.
;
_journal_issue                   2
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              209
_journal_page_last               212
_journal_paper_doi               10.1039/c9cc08182h
_journal_volume                  56
_journal_year                    2019
_chemical_formula_moiety         'C3 H2 N5 O5, H4 N'
_chemical_formula_sum            'C3 H6 N6 O5'
_chemical_formula_weight         206.14
_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   geom
_atom_sites_solution_primary     dual
_atom_sites_solution_secondary   difmap
_audit_creation_date             2019-10-10
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2019-11-18 deposited with the CCDC.	2019-11-27 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 102.907(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.1650(12)
_cell_length_b                   7.8116(9)
_cell_length_c                   9.9589(12)
_cell_measurement_reflns_used    1118
_cell_measurement_temperature    173
_cell_measurement_theta_max      23.98
_cell_measurement_theta_min      3.32
_cell_volume                     770.81(16)
_computing_cell_refinement       'SAINT v7.68A (Bruker, 2009)'
_computing_data_reduction        'SAINT v7.68A (Bruker, 2009)'
_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      173
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0384
_diffrn_reflns_av_unetI/netI     0.0386
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            6401
_diffrn_reflns_theta_full        27.17
_diffrn_reflns_theta_max         27.17
_diffrn_reflns_theta_min         2.06
_diffrn_source                   'fine-focus sealed tube'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.165
_exptl_absorpt_correction_T_max  0.7455
_exptl_absorpt_correction_T_min  0.6789
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2008/1 (Bruker,2008) was used for absorption correction. wR2(int) was 0.0673 before and 0.0491 after correction. The Ratio of minimum to maximum transmission is 0.9107. The \l/2 correction factor is 0.0015.'
_exptl_crystal_colour            'clear yellowish yellow'
_exptl_crystal_colour_lustre     clear
_exptl_crystal_colour_modifier   yellowish
_exptl_crystal_colour_primary    yellow
_exptl_crystal_density_diffrn    1.776
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             424
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.235
_refine_diff_density_min         -0.281
_refine_diff_density_rms         0.068
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.060
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     151
_refine_ls_number_reflns         1694
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      1.078
_refine_ls_R_factor_all          0.0569
_refine_ls_R_factor_gt           0.0426
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0696P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1156
_refine_ls_wR_factor_ref         0.1233
_reflns_number_gt                1322
_reflns_number_total             1694
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c9cc08182h2.cif
_cod_data_source_block           mo_2017212ltl-4-3_0ma
_cod_depositor_comments
'Adding full bibliography for 7125621--7125624.cif.'
_cod_database_code               7125622
_olex2_refinement_description
;
1. Restrained distances
 N6-H6B = N6-H6D = N6-H6A = N6-H6C
 0.84 with sigma of 0.02
;
_olex2_submission_special_instructions 'No special instructions were received'