Two isomeric butadiene–<i>N</i>-(acetoxyphenyl)maleimide Diels–Alder adducts: supramolecular structure directed by C—H···<i>X</i> (<i>X</i> = O and π) hydrogen bonds and perpendicular dipole carbonyl–carbonyl interactions
Jose G. Trujillo-Ferrara; Rosa Luisa Santillán-Baca; Norberto Farfán-García; Itzia I. Padilla-Martínez; Efrén V. García-Báez; Acta Crystallographica Section C 62 (2006) o125–o128; doi:10.1107/S0108270106002186

data_2014318
_publ_section_title
;
 Two isomeric butadiene--<i>N</i>-(acetoxyphenyl)maleimide Diels--Alder
 adducts: supramolecular structure directed by
 C---H&#x00B7;&#x00B7;&#x00B7;<i>X</i> (<i>X</i> = O and \p) hydrogen
 bonds and perpendicular dipole carbonyl--carbonyl interactions
;
_journal_coeditor_code           EM1003
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o125
_journal_page_last               o128
_journal_paper_doi               10.1107/S0108270106002186
_journal_volume                  62
_journal_year                    2006
_chemical_formula_iupac          'C16 H15 N O4'
_chemical_formula_moiety         'C16 H15 N O4'
_chemical_formula_sum            'C16 H15 N O4'
_chemical_formula_weight         285.17
_chemical_name_systematic
;
4-(1,3-dioxo-2,3,3a,4,7,7a-hexahydro-1H-isoindol-2-yl)phenyl acetate
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_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
_cell_angle_alpha                90
_cell_angle_beta                 93.73(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   16.1630(10)
_cell_length_b                   6.5780(10)
_cell_length_c                   13.5830(10)
_cell_measurement_reflns_used    24
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      11
_cell_measurement_theta_min      10
_cell_volume                     1441.1(3)
_computing_cell_refinement       'CAD-4 Express'
_computing_data_collection       'CAD-4 Express (Enraf--Nonius, 1995)'
_computing_data_reduction        'JANA98 (Vaclav, 1998)'
_computing_molecular_graphics    'WinGX (Farrugia, 1999)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 3
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Enraf--Nonius CAD-4'
_diffrn_measurement_method       \w/2\q
_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  0.0200
_diffrn_reflns_av_sigmaI/netI    0.0347
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       0
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            3450
_diffrn_reflns_theta_full        27.96
_diffrn_reflns_theta_max         27.96
_diffrn_reflns_theta_min         2.53
_diffrn_standards_decay_%        2.5
_diffrn_standards_interval_count 200
_diffrn_standards_interval_time  60
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.095
_exptl_absorpt_correction_type   none
_exptl_absorpt_process_details   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.314
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             600
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.426
_refine_diff_density_min         -0.199
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.139
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     191
_refine_ls_number_reflns         3450
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.139
_refine_ls_R_factor_all          0.0897
_refine_ls_R_factor_gt           0.0505
_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^)+(0.0946P)^2^+0.0607P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1663
_refine_ls_wR_factor_ref         0.1822
_reflns_number_gt                2056
_reflns_number_total             3450
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            em1003.cif
_cod_data_source_block           II
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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 'Monoclinic' changed to 'monoclinic'
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 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2014318