Cocrystals assembled by pyrene and 1,2- or 1,4-diiodotetrafluorobenzenes and their phosphorescent behaviors modulated by local molecular environment
Shen, Qian Jin; Wei, Hong Qing; Zou, Wen Sheng; Sun, Hao Ling; Jin, Wei Jun; CrystEngComm 14 (2012) 1010–; doi:10.1039/c1ce06069d

data_7207149
_publ_section_title
;
 Cocrystals assembled by pyrene and 1,2- or 1,4-diiodotetrafluorobenzenes
 and their phosphorescent behaviors modulated by local molecular
 environment
;
_journal_issue                   3
_journal_name_full               CrystEngComm
_journal_page_first              1010
_journal_paper_doi               10.1039/c1ce06069d
_journal_volume                  14
_journal_year                    2012
_chemical_formula_moiety         'C10 H4 O8, 2(C5 H7 N2), 4(H2 O)'
_chemical_formula_sum            'C20 H26 N4 O12'
_chemical_formula_weight         514.44
_chemical_name_common
;
bis(3-Aminopyridinium) 2,5-dihydrogenpyromellitate tetrahydrate
;
_chemical_name_systematic
;
bis(3-Aminopyridinium) 2,5-dicarboxybenzene-1,4-dicarboxylate tetrahydrate
;
_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                 101.340(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   9.2348(2)
_cell_length_b                   17.6801(4)
_cell_length_c                   7.3278(2)
_cell_measurement_reflns_used    6160
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      37.7584
_cell_measurement_theta_min      2.8294
_cell_volume                     1173.07(5)
_computing_cell_refinement       'CrysAlisPro (Oxford Diffraction Ltd., 2010)'
_computing_data_collection       'CrysAlisPro (Oxford Diffraction Ltd., 2010)'
_computing_data_reduction        'CrysAlisPro (Oxford Diffraction Ltd., 2010)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1986)'
_diffrn_ambient_temperature      298(2)
_diffrn_detector_area_resol_mean 10.4186
_diffrn_measured_fraction_theta_full 0.981
_diffrn_measured_fraction_theta_max 0.956
_diffrn_measurement_device_type  'Xcalibur, Atlas, Gemini ultra'
_diffrn_measurement_method       '\w scan'
_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  0.0404
_diffrn_reflns_av_sigmaI/netI    0.0503
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       29
_diffrn_reflns_limit_k_min       -29
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            23728
_diffrn_reflns_theta_full        37.35
_diffrn_reflns_theta_max         37.85
_diffrn_reflns_theta_min         3.06
_exptl_absorpt_coefficient_mu    0.122
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.79945
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.33.55 (release 05-01-2010 CrysAlis171 .NET)
(compiled Jan 5 2010,16:28:46)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.456
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             540
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.37
_exptl_crystal_size_min          0.35
_refine_diff_density_max         0.403
_refine_diff_density_min         -0.303
_refine_diff_density_rms         0.052
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.895
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     164
_refine_ls_number_reflns         6040
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.895
_refine_ls_R_factor_all          0.0955
_refine_ls_R_factor_gt           0.0486
_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^)+(0.0692P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1166
_refine_ls_wR_factor_ref         0.1288
_reflns_number_gt                3343
_reflns_number_total             6041
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1ce06069d.txt
_cod_data_source_block           1
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7207149