(<i>E</i>)-1-Nitro-4-(2-nitroethenyl)benzene
Jing, Lin-Hai; Acta Crystallographica Section E 65 (2009) o2809–; doi:10.1107/S1600536809042561

data_2223693
_publ_section_title
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 (<i>E</i>)-1-Nitro-4-(2-nitroethenyl)benzene
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_journal_coeditor_code           CI2942
_journal_issue                   11
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o2809
_journal_paper_doi               10.1107/S1600536809042561
_journal_volume                  65
_journal_year                    2009
_chemical_formula_iupac          'C8 H6 N2 O4'
_chemical_formula_moiety         'C8 H6 N2 O4'
_chemical_formula_sum            'C8 H6 N2 O4'
_chemical_formula_weight         194.15
_chemical_name_systematic
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(<i>E</i>)-1-Nitro-4-(2-nitroethenyl)benzene
;
_space_group_IT_number           33
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2n'
_symmetry_space_group_name_H-M   'P n a 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   15.847(4)
_cell_length_b                   4.9991(11)
_cell_length_c                   20.495(5)
_cell_measurement_reflns_used    5000
_cell_measurement_temperature    93(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      3.25
_cell_volume                     1623.6(7)
_computing_cell_refinement       'RAPID-AUTO (Rigaku, 2004)'
_computing_data_collection       'RAPID-AUTO (Rigaku, 2004)'
_computing_data_reduction        'RAPID-AUTO (Rigaku, 2004)'
_computing_molecular_graphics    'XP in SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      93(2)
_diffrn_detector_area_resol_mean 28.5714
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Rigaku AFC10/Saturn724+'
_diffrn_measurement_method       multi-scan
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Rotating Anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0317
_diffrn_reflns_av_sigmaI/netI    0.0194
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            12157
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.25
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.131
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    1.588
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             800
_exptl_crystal_size_max          0.43
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.17
_refine_diff_density_max         0.263
_refine_diff_density_min         -0.165
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.129
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     253
_refine_ls_number_reflns         1921
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.128
_refine_ls_R_factor_all          0.0391
_refine_ls_R_factor_gt           0.0354
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0583P)^2^+0.0124P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0872
_refine_ls_wR_factor_ref         0.0896
_reflns_number_gt                1821
_reflns_number_total             1921
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ci2942.cif
_cod_data_source_block           I
_cod_depositor_comments
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The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
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_cod_database_code               2223693
_cod_database_fobs_code          2223693