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_4509679
_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            'C26 H32 Br2 N4 O4'
_chemical_formula_weight         624.38
_chemical_melting_point          250
_chemical_name_systematic
; 
1,1'-Diphenyl-3,3'-xylylenediimidazolium bis(bromide) 
;
_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
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 111.966(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   12.2729(11)
_cell_length_b                   7.3230(8)
_cell_length_c                   16.1223(14)
_cell_measurement_reflns_used    8175
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      66.81
_cell_measurement_theta_min      3.90
_cell_volume                     1343.8(2)
_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 0.917
_diffrn_measured_fraction_theta_max 0.917
_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  0.070
_diffrn_reflns_av_sigmaI/netI    0.0340
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            10033
_diffrn_reflns_theta_full        67.96
_diffrn_reflns_theta_max         67.96
_diffrn_reflns_theta_min         3.90
_diffrn_standards_decay_%        0.00
_diffrn_standards_number         5
_exptl_absorpt_coefficient_mu    4.147
_exptl_absorpt_correction_T_max  0.81
_exptl_absorpt_correction_T_min  0.61
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs (Sheldrick,1996)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.543
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             636
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.681
_refine_diff_density_min         -0.624
_refine_diff_density_rms         0.105
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.102
_refine_ls_matrix_type           full
_refine_ls_number_parameters     175
_refine_ls_number_reflns         2240
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.101
_refine_ls_R_factor_all          0.0525
_refine_ls_R_factor_gt           0.0521
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0650P)^2^+5.2404P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1468
_refine_ls_wR_factor_ref         0.1471
_reflns_number_gt                2204
_reflns_number_total             2240
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            cg900630asup1.cif
_cod_data_source_block           PXBr2
_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 (18
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 (23
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/n
_cod_database_code               4509679