π–hole interactions at work: crystal engineering with nitro-derivatives
Bauzá, Antonio; Sharko, Anastasiya V.; Senchyk, Ganna A.; Rusanov, Eduard B.; Frontera, Antonio; Domasevitch, Kostiantyn V.; CrystEngComm 19 (2017) 1933–; doi:10.1039/C7CE00267J

data_7227841
_publ_section_title
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 \p--hole interactions at work: crystal engineering with nitro-derivatives
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_journal_issue                   14
_journal_name_full               CrystEngComm
_journal_page_first              1933
_journal_paper_doi               10.1039/C7CE00267J
_journal_volume                  19
_journal_year                    2017
_chemical_formula_moiety         'C4 H4 N2 O4'
_chemical_formula_sum            'C4 H4 N2 O4'
_chemical_formula_weight         144.09
_chemical_name_systematic
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1,4-Dinitro-1,3-butadiene
;
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
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2017-01-26 deposited with the CCDC.
2017-03-13 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 102.516(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   3.8306(3)
_cell_length_b                   10.3433(6)
_cell_length_c                   7.9532(6)
_cell_measurement_reflns_used    3158
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      28.24
_cell_measurement_theta_min      3.28
_cell_volume                     307.63(4)
_computing_cell_refinement       'SAINT (Bruker, 2008)'
_computing_data_collection       'APEX2 (Bruker, 2008)'
_computing_data_reduction        'SAINT (Bruker, 2008)'
_computing_molecular_graphics    'Diamond 2.1e (Brandenburg, 1999)'
_computing_publication_material  'WinGX 1.70.01 (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX2 area-detector diffractometer'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0275
_diffrn_reflns_av_sigmaI/netI    0.0231
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            3158
_diffrn_reflns_theta_full        28.24
_diffrn_reflns_theta_max         28.24
_diffrn_reflns_theta_min         3.28
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.142
_exptl_absorpt_correction_T_max  0.9598
_exptl_absorpt_correction_T_min  0.9378
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'SADABS (Bruker, 2008)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.556
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             148
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.22
_refine_diff_density_max         0.161
_refine_diff_density_min         -0.149
_refine_diff_density_rms         0.032
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.063
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     54
_refine_ls_number_reflns         762
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.063
_refine_ls_R_factor_all          0.0585
_refine_ls_R_factor_gt           0.0356
_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^)+(0.0372P)^2^+0.0679P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0881
_refine_ls_wR_factor_ref         0.1023
_reflns_number_gt                528
_reflns_number_total             762
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c7ce00267j2.cif
_cod_data_source_block           1
_cod_depositor_comments
;Adding full bibliography for 7227838--7227841.cif.

The following automatic conversions were performed:

data name '_iucr_refine_instruction_details' was replaced with
'_iucr_refine_instructions_details' as specified in the replacement
file 'data/replacement-values/replacement_tags.lst'.

Automatic conversion script
Id: cif_correct_tags 9268 2022-04-12 08:56:07Z antanas 
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_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7227841