5,6-Fused bicyclic tetrazolo-pyridazine energetic materials.
Chen, Sitong; Liu, Yuji; Feng, Yongan; Yang, Xianjin; Zhang, Qinghua; Chemical communications (Cambridge, England) 56 (2020) 1493–1496; doi:10.1039/c9cc08782f

data_7125722
_publ_section_title
;
 5,6-Fused bicyclic tetrazolo-pyridazine energetic materials.
;
_journal_issue                   10
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              1493
_journal_page_last               1496
_journal_paper_doi               10.1039/c9cc08782f
_journal_volume                  56
_journal_year                    2020
_chemical_formula_moiety         'C4 H2 Cl2 N4 O2'
_chemical_formula_sum            'C4 H2 Cl2 N4 O2'
_chemical_formula_weight         209.00
_chemical_properties_physical    Deliquescent
_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     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2019-07-03
_audit_creation_method
;
Olex2 1.2-beta
(compiled 2015.08.17 svn.r3210 for OlexSys, GUI svn.r5083)
;
_audit_update_record
;
2019-08-14 deposited with the CCDC.	2020-01-02 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 99.450(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   16.0864(10)
_cell_length_b                   12.7175(8)
_cell_length_c                   7.1186(5)
_cell_measurement_reflns_used    7375
_cell_measurement_temperature    227
_cell_measurement_theta_max      27.52
_cell_measurement_theta_min      3.03
_cell_volume                     1436.55(16)
_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    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      227.0
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'CCD area detector'
_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  0.0646
_diffrn_reflns_av_unetI/netI     0.0463
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            16870
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         27.58
_diffrn_reflns_theta_min         2.57
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.861
_exptl_absorpt_correction_T_max  0.7456
_exptl_absorpt_correction_T_min  0.5370
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1193 before and 0.0847 after correction.
The Ratio of minimum to maximum transmission is 0.7202.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            red
_exptl_crystal_colour_primary    red
_exptl_crystal_density_diffrn    1.933
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             832
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.339
_refine_diff_density_min         -0.355
_refine_diff_density_rms         0.068
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.062
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     233
_refine_ls_number_reflns         3286
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.062
_refine_ls_R_factor_all          0.0561
_refine_ls_R_factor_gt           0.0418
_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^)+(0.0330P)^2^+1.1250P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0925
_refine_ls_wR_factor_ref         0.1002
_reflns_number_gt                2683
_reflns_number_total             3286
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c9cc08782f2.cif
_cod_data_source_block           a
_cod_depositor_comments
'Adding full bibliography for 7125722--7125725.cif.'
_cod_database_code               7125722
_olex2_refinement_description
;
;
_olex2_submission_special_instructions 'No special instructions were received'