Crystal structures and supramolecular features of 9,9-dimethyl-3,7-diazabicyclo[3.3.1]nonane-2,4,6,8-tetraone, 3,7-diazaspiro[bicyclo[3.3.1]nonane-9,1'-cyclopentane]-2,4,6,8-tetraone and 9-methyl-9-phenyl-3,7-diazabicyclo[3.3.1]nonane-2,4,6,8-tetraone dimethylformamide monosolvate
Vatsadze, Sergey Z.; Manaenkova, Marina A.; Vasilev, Evgeny V.; Venskovsky, Nikolai U.; Khrustalev, Victor N.; Acta Crystallographica Section E 73 (2017) 1097–1101; doi:10.1107/S2056989017009458

data_2242206
_publ_section_title
;
 Crystal structures and supramolecular features of
 9,9-dimethyl-3,7-diazabicyclo[3.3.1]nonane-2,4,6,8-tetraone,
 3,7-diazaspiro[bicyclo[3.3.1]nonane-9,1'-cyclopentane]-2,4,6,8-tetraone
 and 9-methyl-9-phenyl-3,7-diazabicyclo[3.3.1]nonane-2,4,6,8-tetraone
 dimethylformamide monosolvate
;
_journal_coeditor_code           LD2140
_journal_issue                   7
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              1097
_journal_page_last               1101
_journal_paper_doi               10.1107/S2056989017009458
_journal_volume                  73
_journal_year                    2017
_chemical_formula_iupac          'C11 H12 N2 O4'
_chemical_formula_moiety         'C11 H12 N2 O4'
_chemical_formula_sum            'C11 H12 N2 O4'
_chemical_formula_weight         236.23
_chemical_name_systematic
;
3,7-Diazaspiro[bicyclo[3.3.1]nonane-9,1'-cyclopentane]-2,4,6,8-tetraone
;
_space_group_crystal_system      orthorhombic
_space_group_IT_number           62
_space_group_name_Hall           '-P 2ac 2n'
_space_group_name_H-M_alt        'P n m a'
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     difmap
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2014/6
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.8058(6)
_cell_length_b                   11.4850(6)
_cell_length_c                   6.9058(3)
_cell_measurement_reflns_used    4118
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      33.93
_cell_measurement_theta_min      3.18
_cell_volume                     1015.67(8)
_computing_cell_refinement
;
SAINT (Bruker, 2001)
;
_computing_data_collection
;
APEX2 (Bruker, 2005)
;
_computing_data_reduction
;
SAINT (Bruker, 2001)
;
_computing_molecular_graphics
;
SHELXTL (Sheldrick, 2008)
;
_computing_publication_material
;
SHELXTL (Sheldrick, 2008)
;
_computing_structure_refinement
;
SHELXL2014 (Sheldrick, 2015b)
;
_computing_structure_solution
;
SHELXT (Sheldrick, 2015a)
;
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.953
_diffrn_measurement_device_type  'Bruker SMART 1K CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0310
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            15297
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         34.759
_diffrn_reflns_theta_min         3.182
_exptl_absorpt_coefficient_mu    0.119
_exptl_absorpt_correction_T_max  0.970
_exptl_absorpt_correction_T_min  0.960
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
(SADABS; Sheldrick, 2003)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.545
_exptl_crystal_description       prism
_exptl_crystal_F_000             496
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.419
_refine_diff_density_min         -0.225
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.026
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     85
_refine_ls_number_reflns         2181
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.026
_refine_ls_R_factor_all          0.0539
_refine_ls_R_factor_gt           0.0425
_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^)+(0.0631P)^2^+0.338P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1114
_refine_ls_wR_factor_ref         0.1185
_reflns_number_gt                1782
_reflns_number_total             2181
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ld2140sup1.cif
_cod_data_source_block           II
_cod_database_code               2242206
_cod_database_fobs_code          2242206
_shelx_estimated_absorpt_t_min   0.965
_shelx_estimated_absorpt_t_max   0.977
_shelx_hkl_checksum              24945
_shelx_res_checksum              3684
_shelxl_version_number           2014/6