Impact of molecular packing rearrangement on solid-state fluorescence: polyhalogenated N-hetarylamines vs. their co-crystals with 18-crown-6
Vaganova, Tamara A.; Gatilov, Yurij V.; Benassi, Enrico; Chuikov, Igor P.; Pishchur, Denis P.; Malykhin, Evgenij V.; CrystEngComm 21 (2019) 5931–; doi:10.1039/C9CE00645A

data_7233424
_publ_section_title
;
 Impact of molecular packing rearrangement on solid-state fluorescence:
 polyhalogenated N-hetarylamines vs. their co-crystals with 18-crown-6
;
_journal_issue                   39
_journal_name_full               CrystEngComm
_journal_page_first              5931
_journal_paper_doi               10.1039/C9CE00645A
_journal_volume                  21
_journal_year                    2019
_chemical_formula_moiety         'C5 H2 Cl F3 N2'
_chemical_formula_sum            'C5 H2 Cl F3 N2'
_chemical_formula_weight         182.54
_chemical_melting_point          397
_chemical_name_systematic        2-amino-4-chloro-3,5,6-trifluoropyridine
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2019-04-22 deposited with the CCDC.    2019-08-23 downloaded from the CCDC.
;
_cell_angle_alpha                77.722(4)
_cell_angle_beta                 89.064(5)
_cell_angle_gamma                87.753(4)
_cell_formula_units_Z            2
_cell_length_a                   5.0807(5)
_cell_length_b                   7.6319(7)
_cell_length_c                   8.5518(9)
_cell_measurement_reflns_used    3259
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      26.05
_cell_measurement_theta_min      2.44
_cell_volume                     323.75(6)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0235
_diffrn_reflns_av_unetI/netI     0.0200
_diffrn_reflns_Laue_measured_fraction_full 0.995
_diffrn_reflns_Laue_measured_fraction_max 0.987
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            5129
_diffrn_reflns_point_group_measured_fraction_full 0.995
_diffrn_reflns_point_group_measured_fraction_max 0.987
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.034
_diffrn_reflns_theta_min         2.437
_exptl_absorpt_coefficient_mu    0.575
_exptl_absorpt_correction_T_max  0.6938
_exptl_absorpt_correction_T_min  0.6162
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS-2008/1
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.872
_exptl_crystal_description       plate_thick
_exptl_crystal_F_000             180
_exptl_crystal_size_max          0.570
_exptl_crystal_size_mid          0.370
_exptl_crystal_size_min          0.280
_refine_diff_density_max         0.188
_refine_diff_density_min         -0.221
_refine_diff_density_rms         0.043
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.988
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     108
_refine_ls_number_reflns         1265
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.988
_refine_ls_R_factor_all          0.0412
_refine_ls_R_factor_gt           0.0303
_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^)+(0.0249P)^2^+0.2336P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0679
_refine_ls_wR_factor_ref         0.0758
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1038
_reflns_number_total             1265
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9ce00645a2.cif
_cod_data_source_block           E-M46
_cod_depositor_comments
'Adding full bibliography for 7233421--7233432.cif.'
_cod_database_code               7233424
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.735
_shelx_estimated_absorpt_t_max   0.856
_shelx_res_checksum              10638