Competition between hydrogen bonding and arene–perfluoroarene stacking. X-Ray diffraction and molecular simulation on 5,6,7,8-tetrafluoro-2-naphthoic acid and 5,6,7,8-tetrafluoro-2-naphthamide crystals
Cozzi, Franco; Bacchi, Sergio; Filippini, Giuseppe; Pilati, Tullio; Gavezzotti, Angelo; CrystEngComm 11 (2009) 1122–; doi:10.1039/b820791g

data_7200727
_publ_section_title
;
 Competition between hydrogen bonding and arene--perfluoroarene
 stacking. X-Ray diffraction and molecular simulation on
 5,6,7,8-tetrafluoro-2-naphthoic acid and
 5,6,7,8-tetrafluoro-2-naphthamide crystals
;
_journal_issue                   6
_journal_name_full               CrystEngComm
_journal_page_first              1122
_journal_paper_doi               10.1039/b820791g
_journal_volume                  11
_journal_year                    2009
_chemical_formula_moiety         'C11 H4 F4 O2'
_chemical_formula_sum            'C11 H4 F4 O2'
_chemical_formula_weight         244.14
_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                 90.880(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   4.943(2)
_cell_length_b                   5.902(2)
_cell_length_c                   30.706(12)
_cell_measurement_reflns_used    886
_cell_measurement_temperature    93(2)
_cell_measurement_theta_max      25.89
_cell_measurement_theta_min      2.65
_cell_volume                     895.7(6)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics
'ORTEP-III (Burnett and Johnson, 1996), Mercury 1.4, CCDC'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution
;
M.C. Burla, M. Camalli, B. Carrozzini, G.L. Cascarano, C. Giacovazzo,
G. Polidori, R. Spagna (2003).
SIR2002: the program. J. Appl. Cryst. 36,1103
;
_diffrn_ambient_temperature      93(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.929
_diffrn_measurement_device_type  'Bruker SMART CCD area-detector'
_diffrn_measurement_method       '\w and \f 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  0.0751
_diffrn_reflns_av_sigmaI/netI    0.0875
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -39
_diffrn_reflns_number            5114
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         28.08
_diffrn_reflns_theta_min         2.65
_diffrn_standards_decay_%        0.00
_exptl_absorpt_coefficient_mu    0.179
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.810
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             488
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.355
_refine_diff_density_min         -0.240
_refine_diff_density_rms         0.058
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.820
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     170
_refine_ls_number_reflns         2028
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.820
_refine_ls_R_factor_all          0.0794
_refine_ls_R_factor_gt           0.0432
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0315P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0836
_refine_ls_wR_factor_ref         0.0940
_reflns_number_gt                1166
_reflns_number_total             2028
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            b820791g.txt
_cod_data_source_block           cz7_93k
_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      'P 21/c'
_cod_database_code               7200727