Methyl sydnone imine and its energetic salts
Gettings, Matthew L.; Byrd, Edward F. C.; Zeller, Matthias; Piercey, Davin; New Journal of Chemistry 45 (2021) 2228–2236; doi:10.1039/D0NJ05354F

data_7060273
_publ_section_title
;
 Methyl sydnone imine and its energetic salts
;
_journal_issue                   4
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              2228
_journal_page_last               2236
_journal_paper_doi               10.1039/D0NJ05354F
_journal_volume                  45
_journal_year                    2021
_chemical_formula_moiety         'C N5 O2, C3 H6 N3 O'
_chemical_formula_sum            'C4 H6 N8 O3'
_chemical_formula_weight         214.17
_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     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2020-08-24 deposited with the CCDC.	2021-01-11 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 108.365(3)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   24.1038(10)
_cell_length_b                   5.0060(2)
_cell_length_c                   15.4562(7)
_cell_measurement_reflns_used    9897
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      66.5896
_cell_measurement_theta_min      3.8623
_cell_volume                     1770.01(13)
_computing_cell_refinement       'SAINT V8.40A (Bruker, 2019)'
_computing_data_collection       'Apex3 v2019.1-0 (Bruker, 2019)'
_computing_data_reduction        'SAINT V8.40A (Bruker, 2019)'
_computing_structure_refinement
;  
SHELXL-2018/3 (Sheldrick, 2015, 2018), 
SHELXLE Rev1117 (H\"ubschle et al., 2011)
;
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 7.4074
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type
;
Bruker AXS D8 Quest diffractometer with PhotonIII_C14 charge-integrating pixel 
array detector (CPAD)
;
_diffrn_measurement_method       'omega and phi scans'
_diffrn_radiation_monochromator  'laterally graded multilayer (Goebel) mirror'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0382
_diffrn_reflns_av_unetI/netI     0.0201
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       26
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            24473
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        66.680
_diffrn_reflns_theta_max         66.680
_diffrn_reflns_theta_min         3.864
_diffrn_source                   'I-mu-S microsource X-ray tube'
_diffrn_source_current           '1.0 mA'
_diffrn_source_voltage           '50 kV'
_exptl_absorpt_coefficient_mu    1.202
_exptl_absorpt_correction_T_max  0.7528
_exptl_absorpt_correction_T_min  0.6980
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 SADABS 2016/2: Krause, L., Herbst-Irmer, R., Sheldrick G.M. & Stalke D.,
 J. Appl. Cryst. 48 (2015) 3-10
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.607
_exptl_crystal_description       block
_exptl_crystal_F_000             880
_exptl_crystal_size_max          0.140
_exptl_crystal_size_mid          0.110
_exptl_crystal_size_min          0.070
_refine_diff_density_max         0.195
_refine_diff_density_min         -0.175
_refine_diff_density_rms         0.037
_refine_ls_extinction_coef       0.00137(16)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2018/3 (Sheldrick 2018)'
_refine_ls_goodness_of_fit_ref   1.033
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     290
_refine_ls_number_reflns         3112
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.032
_refine_ls_R_factor_all          0.0343
_refine_ls_R_factor_gt           0.0290
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0389P)^2^+0.5510P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0734
_refine_ls_wR_factor_ref         0.0774
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2737
_reflns_number_total             3112
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0nj05354f2.cif
_cod_data_source_block           G117_MSI_NT_0m
_cod_depositor_comments
'Adding full bibliography for 7060272--7060278.cif.'
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7060273
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.850
_shelx_estimated_absorpt_t_max   0.921
_shelx_res_checksum              22947
_shelx_hkl_checksum              12011