Water-miscible organic J-aggregate nanoparticles as efficient two-photon fluorescent nano-probes for bio-imaging
Xu, Zhenzhen; Liao, Qing; Wu, Yishi; Ren, Wenlu; Li, Wei; Liu, Libing; Wang, Shu; Gu, Zhanjun; Zhang, Haoli; Fu, Hongbing; Journal of Materials Chemistry 22 (2012) 17737–; doi:10.1039/c2jm33081d

data_7208621
_publ_section_title
;
 Water-miscible organic J-aggregate nanoparticles as efficient two-photon
 fluorescent nano-probes for bio-imaging
;
_journal_issue                   34
_journal_name_full               'Journal of Materials Chemistry'
_journal_page_first              17737
_journal_paper_doi               10.1039/c2jm33081d
_journal_volume                  22
_journal_year                    2012
_chemical_formula_moiety         'C26 H20 N2 O2'
_chemical_formula_sum            'C26 H20 N2 O2'
_chemical_formula_weight         392.44
_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                 104.292(12)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   8.5110(15)
_cell_length_b                   14.954(3)
_cell_length_c                   8.4748(15)
_cell_measurement_reflns_used    425
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      68.22
_cell_measurement_theta_min      3.12
_cell_volume                     1045.2(3)
_computing_cell_refinement       'Rapid Auto Ver 2.30(Rigaku 1998)'
_computing_data_collection       'Rapid Auto Ver 2.30(Rigaku 1998)'
_computing_data_reduction        'Rapid Auto Ver 2.30(Rigaku 1998)'
_computing_molecular_graphics    'XP in Siemens SHELXTL (Sheldrick, 1994)'
_computing_publication_material  'SHELX97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Rigaku raxis Rapid IP Area Detector'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54186
_diffrn_reflns_av_R_equivalents  0.0558
_diffrn_reflns_av_sigmaI/netI    0.0438
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       9
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            9978
_diffrn_reflns_theta_full        68.10
_diffrn_reflns_theta_max         68.10
_diffrn_reflns_theta_min         5.36
_exptl_absorpt_coefficient_mu    0.632
_exptl_absorpt_correction_T_max  0.8428
_exptl_absorpt_correction_T_min  0.6317
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'NUMABS by T.Higashi Jun 3, 2003'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.247
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             412
_exptl_crystal_size_max          0.80
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.28
_refine_diff_density_max         0.148
_refine_diff_density_min         -0.120
_refine_diff_density_rms         0.035
_refine_ls_extinction_coef       0.040(2)
_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   1.081
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     138
_refine_ls_number_reflns         1905
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.081
_refine_ls_R_factor_all          0.0693
_refine_ls_R_factor_gt           0.0490
_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^)+(0.0411P)^2^+0.2286P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1121
_refine_ls_wR_factor_ref         0.1224
_reflns_number_gt                1428
_reflns_number_total             1905
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2jm33081d.txt
_cod_data_source_block           a
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               7208621