Aryl–perfluoroaryl stacking interactions, hydrogen bonding and steric effects in controlling the structure of supramolecular assemblies of N,N′-diaryloxalamides
Piotrkowska, Barbara; Gdaniec, Maria; Milewska, Maria J.; Połoński, Tadeusz; CrystEngComm 9 (2007) 868–; doi:10.1039/b709654b

data_7203077
_publ_section_title
;
 Aryl--perfluoroaryl stacking interactions, hydrogen bonding and steric
 effects in controlling the structure of supramolecular assemblies of
 N,N&#x2032;-diaryloxalamides
;
_journal_issue                   10
_journal_name_full               CrystEngComm
_journal_page_first              868
_journal_paper_doi               10.1039/b709654b
_journal_volume                  9
_journal_year                    2007
_chemical_formula_moiety         '(C18 H20 N2 O2)0.5, C7 F5 O2 H'
_chemical_formula_sum            'C16 H11 F5 N O3'
_chemical_formula_weight         360.26
_chemical_name_systematic
;
N,N'-bis(3,5-dimethylphenyl)ethanediamide
bis-2,3,4,5,6-pentafluorobenzoic acid

;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                91.559(15)
_cell_angle_beta                 104.416(11)
_cell_angle_gamma                92.117(11)
_cell_formula_units_Z            2
_cell_length_a                   6.9617(10)
_cell_length_b                   8.3110(11)
_cell_length_c                   13.3819(19)
_cell_measurement_reflns_used    4506
_cell_measurement_temperature    130(2)
_cell_measurement_theta_max      25
_cell_measurement_theta_min      4
_cell_volume                     748.84(18)
_computing_cell_refinement
;
Oxford Diffraction, CrysAlis Software, Version 1.171, 2003
;
_computing_data_collection
;
Oxford Diffraction, CrysAlis Software, Version 1.171, 2003
;
_computing_data_reduction
;
Oxford Diffraction, CrysAlis Software, Version 1.171, 2003
;
_computing_molecular_graphics
; 'Stereochemical Workstation (Siemens
Analytical X-Ray Instruments, Inc., 1989)'
;
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      130(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'KumaCCD diffractometer'
_diffrn_measurement_method       '\o scan'
_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  0.0597
_diffrn_reflns_av_sigmaI/netI    0.0596
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            5623
_diffrn_reflns_theta_full        25.03
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         4.37
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 50
_exptl_absorpt_coefficient_mu    0.151
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.598
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             366
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.50
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.250
_refine_diff_density_min         -0.337
_refine_diff_density_rms         0.066
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.069
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     231
_refine_ls_number_reflns         2612
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.069
_refine_ls_R_factor_all          0.0581
_refine_ls_R_factor_gt           0.0462
_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^)+(0.0787P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1244
_refine_ls_wR_factor_ref         0.1320
_reflns_number_gt                1998
_reflns_number_total             2612
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b709654b.txt
_cod_data_source_block           4pfba
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7203077