Anion-controlled dimerized rectangular, herringbone and tape building blocks by L-shaped diamide-substituted pyridinium salts via N–H⋯O and C–H⋯O hydrogen bonding
Li, Wei-Liang; Wu, An-Kai; Lee, Kwang-Ming; CrystEngComm 14 (2012) 6072–; doi:10.1039/c2ce25695a

data_7214651
_publ_section_title
;
 Anion-controlled dimerized rectangular, herringbone and tape building
 blocks by L-shaped diamide-substituted pyridinium salts via N--H&#x22EF;O
 and C--H&#x22EF;O hydrogen bonding
;
_journal_issue                   18
_journal_name_full               CrystEngComm
_journal_page_first              6072
_journal_paper_doi               10.1039/c2ce25695a
_journal_volume                  14
_journal_year                    2012
_chemical_formula_sum            'C8 H10 F6 N3 O2 P'
_chemical_formula_weight         325.16
_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                 96.686(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.8952(8)
_cell_length_b                   12.8953(12)
_cell_length_c                   11.1052(10)
_cell_measurement_reflns_used    2838
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.4939
_cell_measurement_theta_min      3.1595
_cell_volume                     1265.2(2)
_computing_cell_refinement       'SAINT V7.68A (Bruker AXS, 2009)'
_computing_data_collection       'APEX2 (Bruker AXS, 2010)'
_computing_data_reduction        'SAINT V7.68A (Bruker AXS, 2009)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.3333
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_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  0.0275
_diffrn_reflns_av_sigmaI/netI    0.0259
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            10317
_diffrn_reflns_theta_full        26.49
_diffrn_reflns_theta_max         26.49
_diffrn_reflns_theta_min         2.31
_exptl_absorpt_coefficient_mu    0.298
_exptl_absorpt_correction_T_max  0.9486
_exptl_absorpt_correction_T_min  0.8782
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2008/1 (Bruker AXS)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.707
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Tabullar
_exptl_crystal_F_000             656
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.530
_refine_diff_density_min         -0.393
_refine_diff_density_rms         0.056
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     181
_refine_ls_number_reflns         2606
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.0494
_refine_ls_R_factor_gt           0.0356
_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^)+(0.0435P)^2^+0.8641P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0887
_refine_ls_wR_factor_ref         0.0954
_reflns_number_gt                2064
_reflns_number_total             2606
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2ce25695a.txt
_cod_data_source_block           pf6
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7214651