Amino-coumarin based fluorescence ratiometric sensors for acidic pH and their application for living cells imaging
Long, Lingliang; Li, Xiufen; Zhang, Dongdong; Meng, Suci; Zhang, Jinfang; Sun, Xianglan; Zhang, Chi; Zhou, Liping; Wang, Lin; RSC Advances 3 (2013) 12204–; doi:10.1039/c3ra41329b

data_7239034
_publ_section_title
;
 Amino-coumarin based fluorescence ratiometric sensors for acidic pH and
 their application for living cells imaging
;
_journal_issue                   30
_journal_name_full               'RSC Advances'
_journal_page_first              12204
_journal_paper_doi               10.1039/c3ra41329b
_journal_volume                  3
_journal_year                    2013
_chemical_formula_sum            'C20 H20 N2 O2'
_chemical_formula_weight         320.38
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_cell_setting           monoclinic
_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                 101.32(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.2474(16)
_cell_length_b                   17.675(3)
_cell_length_c                   11.501(2)
_cell_measurement_temperature    150(2)
_cell_volume                     1643.9(5)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.986
_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  0.0303
_diffrn_reflns_av_sigmaI/netI    0.0426
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            7721
_diffrn_reflns_theta_full        26.02
_diffrn_reflns_theta_max         26.02
_diffrn_reflns_theta_min         3.41
_exptl_absorpt_coefficient_mu    0.084
_exptl_crystal_density_diffrn    1.294
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             680
_refine_diff_density_max         0.196
_refine_diff_density_min         -0.166
_refine_diff_density_rms         0.036
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.105
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     217
_refine_ls_number_reflns         3190
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.105
_refine_ls_R_factor_all          0.0741
_refine_ls_R_factor_gt           0.0549
_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^)+(0.0469P)^2^+0.4402P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1128
_refine_ls_wR_factor_ref         0.1234
_reflns_number_gt                2562
_reflns_number_total             3190
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3ra41329b.txt
_cod_data_source_block           s
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7239034