Two-photon fluorescent probes for biological mg(2+) detection based on 7-substituted coumarin.
Yin, Haijing; Zhang, Buchang; Yu, Haizhu; Zhu, Lin; Feng, Yan; Zhu, Manzhou; Guo, Qingxiang; Meng, Xiangming; The Journal of organic chemistry 80 (2015) 4306–4312; doi:10.1021/jo502775t

data_4030968
_publ_section_title
;
 Two-photon fluorescent probes for biological mg(2+) detection based on
 7-substituted coumarin.
;
_journal_issue                   9
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              4306
_journal_page_last               4312
_journal_paper_doi               10.1021/jo502775t
_journal_volume                  80
_journal_year                    2015
_chemical_formula_sum            'C22 H19 N O4'
_chemical_formula_weight         361.38
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-I 2ya'
_symmetry_space_group_name_H-M   'I 1 2/a 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                 95.483(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   22.0146(15)
_cell_length_b                   6.9363(3)
_cell_length_c                   24.0365(15)
_cell_measurement_temperature    298(2)
_cell_volume                     3653.6(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(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  0.0360
_diffrn_reflns_av_sigmaI/netI    0.0393
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -26
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            8386
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.08
_exptl_absorpt_coefficient_mu    0.091
_exptl_absorpt_correction_T_max  0.9803
_exptl_absorpt_correction_T_min  0.9768
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.314
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod
_exptl_crystal_F_000             1520
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.22
_refine_diff_density_max         0.401
_refine_diff_density_min         -0.251
_refine_diff_density_rms         0.040
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.029
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     244
_refine_ls_number_reflns         3216
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.029
_refine_ls_R_factor_all          0.0824
_refine_ls_R_factor_gt           0.0499
_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^)+(0.0586P)^2^+1.3685P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1161
_refine_ls_wR_factor_ref         0.1368
_reflns_number_gt                2148
_reflns_number_total             3216
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo502775t_si_002.cif
_cod_data_source_block           yhj-2
_cod_depositor_comments
'Adding full bibliography for 4030968--4030970.cif.'
_cod_original_sg_symbol_H-M      I2/a
_cod_database_code               4030968