(E)-4-fluoro-N-(2,3,4-trifluorobenzylidene)aniline
Tizzard, G.; Ling, S.; Threlfall, T.; Coles, S.; Crystal Structure Report Archive  (2010) 1421–; doi:

data_1520478
_publ_section_title
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 (E)-4-fluoro-N-(2,3,4-trifluorobenzylidene)aniline
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_journal_name_full               'Crystal Structure Report Archive'
_journal_page_first              1421
_journal_year                    2010
_chemical_formula_sum            'C13 H0 F4 N'
_chemical_formula_weight         246.14
_space_group_IT_number           14
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 101.043(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.5581(2)
_cell_length_b                   22.1850(6)
_cell_length_c                   7.3736(3)
_cell_measurement_temperature    120(2)
_cell_volume                     1052.93(6)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_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  0.0382
_diffrn_reflns_av_sigmaI/netI    0.0271
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -8
_diffrn_reflns_number            11888
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         2.96
_exptl_absorpt_coefficient_mu    0.142
_exptl_absorpt_correction_T_max  0.9721
_exptl_absorpt_correction_T_min  0.9322
_exptl_crystal_density_diffrn    1.553
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             484
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.227
_refine_diff_density_min         -0.212
_refine_diff_density_rms         0.059
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.041
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     163
_refine_ls_number_reflns         1848
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.041
_refine_ls_R_factor_all          0.0435
_refine_ls_R_factor_gt           0.0384
_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^)+(0.0747P)^2^+0.2504P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1083
_refine_ls_wR_factor_ref         0.1138
_reflns_number_gt                1632
_reflns_number_total             1848
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            eCrystal-1421.cif
_cod_data_source_block           2010sl0003a
_cod_depositor_comments
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Citation :
Tizzard, G and Ling, S and Threlfall, T and Coles, S (2010) 
University of Southampton, Crystal Structure Report Archive. 
(doi:10.5258/ecrystals/1421)

More at:
http://ecrystals.chem.soton.ac.uk/1421/
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_cod_database_code               1520478