Novel supramolecular charge-transfer systems based on bis(18-crown-6)stilbene and viologen analogues bearing two ammonioalkyl groups
Sergey P. Gromov; Artem I. Vedernikov; Evgeny N. Ushakov; Natalia A. Lobova; Asya A. Botsmanova; Lyudmila G. Kuz'mina; Andrei V. Churakov; Yuri A. Strelenko; Michael V. Alfimov; Judith A. K. Howard; Dan Johnels; Ulf G. Edlund; New Journal of Chemistry 29 (2005) 881–; doi:10.1039/b500667h

data_7050086
_publ_section_title
;
 Novel supramolecular charge-transfer systems based on
 bis(18-crown-6)stilbene and viologen analogues bearing two
 ammonioalkyl groups
;
_journal_issue                   7
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              881
_journal_paper_doi               10.1039/b500667h
_journal_volume                  29
_journal_year                    2005
_chemical_formula_sum            'C34 H48 O12'
_chemical_formula_weight         648.72
_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
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 95.988(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   42.7776(15)
_cell_length_b                   9.0073(3)
_cell_length_c                   8.6096(3)
_cell_measurement_temperature    100(2)
_cell_volume                     3299.3(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.885
_diffrn_measured_fraction_theta_max 0.885
_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  0.0679
_diffrn_reflns_av_sigmaI/netI    0.0606
_diffrn_reflns_limit_h_max       54
_diffrn_reflns_limit_h_min       -45
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            9016
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         2.31
_exptl_absorpt_coefficient_mu    0.098
_exptl_absorpt_correction_T_max  0.9980
_exptl_absorpt_correction_T_min  0.9434
_exptl_crystal_density_diffrn    1.306
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1392
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.210
_refine_diff_density_min         -0.202
_refine_diff_density_rms         0.044
_refine_ls_extinction_coef       0.0008(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   1.015
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     305
_refine_ls_number_reflns         3184
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.015
_refine_ls_R_factor_all          0.0829
_refine_ls_R_factor_gt           0.0435
_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^)+(0.0381P)^2^+0.4130P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0839
_refine_ls_wR_factor_ref         0.0949
_reflns_number_gt                2135
_reflns_number_total             3184
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b500667h.txt
_cod_data_source_block           f
_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 
;
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7050086