π-Stacked hydrogen-bonded sheets in <i>N</i>,<i>N</i>'-bis(4-nitrobenzylidene)ethane-1,2-diamine and π-stacked hydrogen-bonded chains in <i>N</i>,<i>N</i>'-bis(4-nitrobenzylidene)propane-1,3-diamine
Bomfim, Joao A. S.; Wardell, James L.; Low, John N.; Skakle, Janet M. S.; Glidewell, Christopher; Acta Crystallographica Section C 61 (2005) o53–o56; doi:10.1107/S0108270104030719

data_2014738
_publ_section_title
;
 \p-Stacked hydrogen-bonded sheets in
 <i>N</i>,<i>N</i>'-bis(4-nitrobenzylidene)ethane-1,2-diamine and
 \p-stacked hydrogen-bonded chains in
 <i>N</i>,<i>N</i>'-bis(4-nitrobenzylidene)propane-1,3-diamine
;
_journal_issue                   1
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o53
_journal_page_last               o56
_journal_paper_doi               10.1107/S0108270104030719
_journal_volume                  61
_journal_year                    2005
_chemical_formula_iupac          'C17 H16 N4 O4'
_chemical_formula_moiety         'C17 H16 N4 O4'
_chemical_formula_sum            'C17 H16 N4 O4'
_chemical_formula_weight         340.34
_chemical_name_systematic
;
N,N'-bis(4-nitrobenzylidene)propane-1,3-diamine
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 99.559(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.9412(6)
_cell_length_b                   7.3062(3)
_cell_length_c                   16.9061(8)
_cell_measurement_reflns_used    1827
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.60
_cell_measurement_theta_min      3.19
_cell_volume                     1576.29(12)
_computing_cell_refinement
'DENZO (Otwinowski & Minor, 1997) and COLLECT'
_computing_data_collection       'COLLECT (Hooft, 1999)'
_computing_data_reduction        'DENZO and COLLECT '
_computing_molecular_graphics    'PLATON (Spek, 2003)'
_computing_publication_material  'SHELXL97 and PRPKAPPA (Ferguson, 1999)'
_computing_structure_refinement  'OSCAIL  and SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution
'OSCAIL (McArdle, 2003) and SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type
;Nonius KappaCCD diffractometer, Bruker--Nonius 95mm CCD camera on
 \k-goniostat
;
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Bruker--Nonius FR591 rotating-anode'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0521
_diffrn_reflns_av_sigmaI/netI    0.0503
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            8695
_diffrn_reflns_theta_full        27.60
_diffrn_reflns_theta_max         27.60
_diffrn_reflns_theta_min         3.19
_diffrn_standards_decay_%        nil
_exptl_absorpt_coefficient_mu    0.105
_exptl_absorpt_correction_T_max  0.996
_exptl_absorpt_correction_T_min  0.984
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 2003)'
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.434
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             712
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.09
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.209
_refine_diff_density_min         -0.245
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.059
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     114
_refine_ls_number_reflns         1827
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.059
_refine_ls_R_factor_all          0.0816
_refine_ls_R_factor_gt           0.0523
_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^)+(0.0884P)^2^+0.3187P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1378
_refine_ls_wR_factor_ref         0.1575
_reflns_number_gt                1306
_reflns_number_total             1827
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            sk1795.cif
_cod_data_source_block           II
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' 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      'C 2/c'
_cod_database_code               2014738
_cod_database_fobs_code          2014738