Polymorphs and pseudopolymorphs of <i>N</i>,<i>N</i>'-dithiobisphthalimide
Farrell, Dorcas M. M.; Glidewell, Christopher; Low, John N.; Skakle, Janet M. S.; Zakaria, Choudhury M.; Acta Crystallographica Section B 58 (2002) 289–299; doi:10.1107/S0108768101020006

data_2103279
_publ_section_title
;
 Polymorphs and pseudopolymorphs of
 <i>N</i>,<i>N</i>'-dithiobisphthalimide
;
_journal_issue                   2
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              289
_journal_page_last               299
_journal_paper_doi               10.1107/S0108768101020006
_journal_volume                  58
_journal_year                    2002
_chemical_formula_moiety         'C16 H8 N2 O4 S2, 0.5(C8 H10)'
_chemical_formula_sum            'C20 H13 N2 O4 S2'
_chemical_formula_weight         409.44
_chemical_name_systematic
;
N,N'-Dithiodiphthalimide hemi(p-xylene) solvate
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 94.3917(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.2629(5)
_cell_length_b                   16.1851(4)
_cell_length_c                   7.7835(2)
_cell_measurement_reflns_used    4089
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      29.78
_cell_measurement_theta_min      2.89
_cell_volume                     1791.52(9)
_computing_cell_refinement       'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'Kappa-CCD server software (Nonius, 1997)'
_computing_data_reduction        'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'PLATON (Spek, 2001)'
_computing_publication_material
'SHELXL-97(Sheldrick, 1997b)  and PRPKAPPA (Ferguson, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997b)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997a)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  Kappa-CCD
_diffrn_measurement_method       '\f scans, and \w scans with \k offsets'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed X-ray tube'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0724
_diffrn_reflns_av_sigmaI/netI    0.0564
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            14107
_diffrn_reflns_theta_full        27.45
_diffrn_reflns_theta_max         27.45
_diffrn_reflns_theta_min         2.89
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.329
_exptl_absorpt_correction_T_max  0.9679
_exptl_absorpt_correction_T_min  0.9224
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'DENZO-SMN (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.518
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             844
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.369
_refine_diff_density_min         -0.439
_refine_ls_extinction_coef       0.016(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.089
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     255
_refine_ls_number_reflns         4089
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.089
_refine_ls_R_factor_all          0.0519
_refine_ls_R_factor_gt           0.0390
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0651P)^2^+0.0637P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1094
_refine_ls_wR_factor_ref         0.1172
_reflns_number_gt                3275
_reflns_number_total             4089
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            na0132.cif
_cod_data_source_block           11
_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_enum 1527 2010-12-29 10:47:43Z saulius 

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      P21/n
_cod_database_code               2103279
_cod_database_fobs_code          2103279