Tuning solid-state fluorescence of pyrene derivatives via a cocrystal strategy
Feng, Qi; Wang, Mingliang; Dong, Baoli; Xu, Chunxiang; Zhao, Jing; Zhang, Hongjuan; CrystEngComm 15 (2013) 3623–; doi:10.1039/c3ce27102a

data_7209751
_publ_section_title
;
 Tuning solid-state fluorescence of pyrene derivatives via a cocrystal
 strategy
;
_journal_issue                   18
_journal_name_full               CrystEngComm
_journal_page_first              3623
_journal_paper_doi               10.1039/c3ce27102a
_journal_volume                  15
_journal_year                    2013
_chemical_formula_sum            'C28 H22 N2 O2'
_chemical_formula_weight         418.48
_chemical_name_systematic
;
1-(5-(pyren-1-yl)-3-(4-methoxyphenyl)-4,5-dihydropyrazol-1-yl)ethanone
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                84.69(3)
_cell_angle_beta                 86.33(3)
_cell_angle_gamma                75.72(3)
_cell_formula_units_Z            4
_cell_length_a                   8.7264(17)
_cell_length_b                   13.335(3)
_cell_length_c                   19.060(4)
_cell_measurement_temperature    293(2)
_cell_volume                     2138.2(8)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.0601
_diffrn_reflns_av_sigmaI/netI    0.0782
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            20185
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         3.16
_exptl_absorpt_coefficient_mu    0.082
_exptl_absorpt_correction_T_max  0.9837
_exptl_absorpt_correction_T_min  0.9757
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.300
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             880
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.8
_refine_diff_density_min         -0.181
_refine_diff_density_rms         0.053
_refine_ls_extinction_coef       0.0102(16)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.034
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     578
_refine_ls_number_reflns         8405
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.034
_refine_ls_R_factor_all          0.1317
_refine_ls_R_factor_gt           0.0667
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0879P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1656
_refine_ls_wR_factor_ref         0.1947
_reflns_number_gt                4429
_reflns_number_total             8405
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3ce27102a.txt
_cod_data_source_block           1
_cod_original_cell_volume        2138.3(7)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7209751