Fluorescent hydrogels formed by CH-π and π-π interactions as the main driving forces: an approach toward understanding the relationship between fluorescence and structure
Ahn, Jinho; Park, Sunhong; Lee, Ji Ha; Jung, Sung Ho; Moon, Seung-Jin; Jung, Jong Hwa; Chemical Communications (Cambridge, United Kingdom) 49 (2013) 2109–2111; doi:10.1039/c2cc37249e

data_7108936
_publ_section_title
;
 Fluorescent hydrogels formed by CH-\p and \p-\p interactions as the main
 driving forces: an approach toward understanding the relationship between
 fluorescence and structure
;
_journal_coden_ASTM              CHCOFS
_journal_issue                   21
_journal_name_full
;
 Chemical Communications (Cambridge, United Kingdom)
;
_journal_page_first              2109
_journal_page_last               2111
_journal_paper_doi               10.1039/c2cc37249e
_journal_volume                  49
_journal_year                    2013
_chemical_formula_sum            'C17 H13 N5 O2'
_chemical_formula_weight         319.32
_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           SHELXTL
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   17.1841(9)
_cell_length_b                   12.4648(7)
_cell_length_c                   6.7661(4)
_cell_measurement_reflns_used    3640
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      28.17
_cell_measurement_theta_min      2.37
_cell_volume                     1449.27(14)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.937
_diffrn_measured_fraction_theta_max 0.937
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0500
_diffrn_reflns_av_sigmaI/netI    0.0481
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -9
_diffrn_reflns_number            8480
_diffrn_reflns_theta_full        28.29
_diffrn_reflns_theta_max         28.29
_diffrn_reflns_theta_min         2.02
_exptl_absorpt_coefficient_mu    0.101
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.463
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             664
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.32
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.275
_refine_diff_density_min         -0.478
_refine_diff_density_rms         0.085
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.215
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     217
_refine_ls_number_reflns         3229
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.215
_refine_ls_R_factor_all          0.0817
_refine_ls_R_factor_gt           0.0718
_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^)+(0.0507P)^2^+1.0133P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1438
_refine_ls_wR_factor_ref         0.1478
_reflns_number_gt                2850
_reflns_number_total             3229
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2cc37249e.txt
_cod_data_source_block           Compound1
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               7108936