Tetraphenylpyrazine-based AIEgens: facile preparation and tunable light emission
Chen, Ming; Li, Lingzhi; Nie, Han; Tong, Jiaqi; Yan, Lulin; Xu, Bin; Sun, Jing Zhi; Tian, Wenjing; Zhao, Zujin; Qin, Anjun; Tang, Ben Zhong; Chem. Sci. 6 (2015) 1932–; doi:10.1039/C4SC03365E

data_1518409
_publ_section_title
;
 Tetraphenylpyrazine-based AIEgens: facile preparation and tunable light
 emission
;
_journal_issue                   3
_journal_name_full               'Chem. Sci.'
_journal_page_first              1932
_journal_paper_doi               10.1039/C4SC03365E
_journal_volume                  6
_journal_year                    2015
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C28 H20 N2'
_chemical_formula_sum            'C28 H20 N2'
_chemical_formula_weight         384.46
_chemical_name_systematic        TPP
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2014-10-30 deposited with the CCDC.
2014-12-11 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   5.9763(5)
_cell_length_b                   11.5786(8)
_cell_length_c                   29.273(3)
_cell_measurement_reflns_used    3616
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      29.3115
_cell_measurement_theta_min      3.2865
_cell_volume                     2025.6(3)
_computing_cell_refinement       'CrysAlis PRO (Agilent Technologies, 2011)'
_computing_data_collection       'CrysAlis PRO'
_computing_data_reduction        'CrysAlis PRO'
_computing_molecular_graphics    'OLEX2 (Dolomanov et al., 2009)'
_computing_publication_material  OLEX2
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 10.3592
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Xcalibur, Atlas, Gemini ultra'
_diffrn_measurement_method       '\w 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  0.0412
_diffrn_reflns_av_sigmaI/netI    0.0260
_diffrn_reflns_limit_h_max       5
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -35
_diffrn_reflns_number            13209
_diffrn_reflns_theta_full        25.35
_diffrn_reflns_theta_max         25.35
_diffrn_reflns_theta_min         3.29
_exptl_absorpt_coefficient_mu    0.074
_exptl_absorpt_correction_T_max  0.9883
_exptl_absorpt_correction_T_min  0.9711
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlis PRO (Agilent Technologies, 2011) 
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.261
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             808
_exptl_crystal_preparation       Luminescent
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.105
_refine_diff_density_min         -0.149
_refine_diff_density_rms         0.032
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -1(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.074
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     271
_refine_ls_number_reflns         2166
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.074
_refine_ls_R_factor_all          0.0528
_refine_ls_R_factor_gt           0.0392
_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^)+(0.0459P)^2^+0.2636P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0894
_refine_ls_wR_factor_ref         0.0976
_reflns_number_gt                1790
_reflns_number_total             2166
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4sc03365e2.cif
_cod_data_source_block           TPP
_cod_depositor_comments
'Adding full bibliography for 1518409--1518412.cif.'
_cod_database_code               1518409