Aggregation induced emission by pyridinium–pyridinium interactions
Leduskrasts, Kaspars; Suna, Edgars; RSC Advances 9 (2019) 460–; doi:10.1039/C8RA08771G

data_7232162
_publ_section_title
;
 Aggregation induced emission by pyridinium--pyridinium interactions
;
_journal_issue                   1
_journal_name_full               'RSC Advances'
_journal_page_first              460
_journal_paper_doi               10.1039/C8RA08771G
_journal_volume                  9
_journal_year                    2019
_chemical_formula_moiety         'C25 H21 N2 1+, C7 H7 O3 S 1-'
_chemical_formula_sum            'C32 H28 N2 O3 S'
_chemical_formula_weight         520.62
_space_group_crystal_system      monoclinic
_space_group_IT_number           7
_space_group_name_Hall           'P -2yc'
_space_group_name_H-M_alt        'P 1 c 1'
_symmetry_space_group_name_Hall  'P -2yc'
_symmetry_space_group_name_H-M   'P 1 c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2017/1
_audit_update_record
;
2018-10-17 deposited with the CCDC.
2019-01-10 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 100.0377(8)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   9.6828(2)
_cell_length_b                   11.6284(3)
_cell_length_c                   11.7511(3)
_cell_measurement_reflns_used    8498
_cell_measurement_temperature    190(2)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      0.998
_cell_volume                     1302.87(5)
_computing_structure_refinement  'SHELXL-2017/1 (Sheldrick, 2017)'
_diffrn_ambient_temperature      190(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       CCD
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0133
_diffrn_reflns_av_unetI/netI     0.0479
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            5423
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.476
_diffrn_reflns_theta_min         2.483
_exptl_absorpt_coefficient_mu    0.162
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.327
_exptl_crystal_description       block
_exptl_crystal_F_000             548
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.202
_refine_diff_density_min         -0.293
_refine_diff_density_rms         0.045
_refine_ls_abs_structure_details
;
 Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   0.38(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.017
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     346
_refine_ls_number_reflns         5422
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.017
_refine_ls_R_factor_all          0.0500
_refine_ls_R_factor_gt           0.0393
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0405P)^2^+0.3529P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0840
_refine_ls_wR_factor_ref         0.0903
_reflns_Friedel_coverage         0.995
_reflns_Friedel_fraction_full    0.998
_reflns_Friedel_fraction_max     0.998
_reflns_number_gt                4773
_reflns_number_total             5422
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8ra08771g2.cif
_cod_data_source_block           Substance_4
_cod_database_code               7232162
_shelx_shelxl_version_number     2017/1
_shelx_res_checksum              31789