Development ofN,N′-Diaromatic Diimidazolium Cations: Arene Interactions for Highly Organized Crystalline Materials
Leclercq, Loïc; Noujeim, Nadim; Schmitzer, Andreea R.; Crystal Growth & Design 9 (2009) 4784–; doi:10.1021/cg900630a

data_4509681
_publ_section_title
;
 Development ofN,N&#x2032;-Diaromatic Diimidazolium Cations: Arene
 Interactions for Highly Organized Crystalline Materials
;
_journal_issue                   11
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              4784
_journal_paper_doi               10.1021/cg900630a
_journal_volume                  9
_journal_year                    2009
_chemical_compound_source        'Synthesized by the authors. See text'
_chemical_formula_sum            'C28 H28 Br2 N4'
_chemical_formula_weight         580.36
_chemical_melting_point          232
_chemical_name_systematic
; 
1,1'-Dibenzyl-3,3'-xylylenediimidazolium bis(bromide)
;
_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                90.00
_cell_angle_beta                 97.6150(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   10.6090(3)
_cell_length_b                   11.4607(4)
_cell_length_c                   10.5336(4)
_cell_measurement_reflns_used    16651
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      67.80
_cell_measurement_theta_min      3.86
_cell_volume                     1269.45(7)
_computing_cell_refinement       'APEX II (Bruker, 2006)'
_computing_data_collection       'APEX II (Bruker, 2006)'
_computing_data_reduction        'SAINT (Bruker, 2004)'
_computing_molecular_graphics    'SHELXTL (Bruker, 1997)'
_computing_publication_material  'UdMX (local program)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 8.2
_diffrn_measured_fraction_theta_full 0.950
_diffrn_measured_fraction_theta_max 0.950
_diffrn_measurement_device_type  'Bruker Microstar'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  'Helios optics'
_diffrn_radiation_source         'Rotating Anode'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.050
_diffrn_reflns_av_sigmaI/netI    0.0253
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            19740
_diffrn_reflns_theta_full        67.85
_diffrn_reflns_theta_max         67.85
_diffrn_reflns_theta_min         4.20
_diffrn_standards_decay_%        0.00
_diffrn_standards_number         5
_exptl_absorpt_coefficient_mu    4.227
_exptl_absorpt_correction_T_max  0.9189
_exptl_absorpt_correction_T_min  0.6965
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs (Sheldrick,1996)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.518
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             588
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.691
_refine_diff_density_min         -0.251
_refine_diff_density_rms         0.071
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.073
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     154
_refine_ls_number_reflns         2196
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.073
_refine_ls_R_factor_all          0.0295
_refine_ls_R_factor_gt           0.0289
_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^)+(0.0464P)^2^+0.6999P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0784
_refine_ls_wR_factor_ref         0.0792
_reflns_number_gt                2139
_reflns_number_total             2196
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            cg900630asup1.cif
_cod_data_source_block           BXBr2
_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 2.4.2 from
2011-04-26.

'_geom_bond_publ_flag' value 'Y' changed to 'y'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26 (19
times).

'_geom_angle_publ_flag' value 'Y' changed to 'y' according
to /home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary
named 'cif_core.dic' version 2.4.2 from 2011-04-26 (24
times).

'_geom_torsion_publ_flag' value 'Y' changed to 'y' according
to /home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary
named 'cif_core.dic' version 2.4.2 from 2011-04-26 (29 times).

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               4509681