A selective hydrolytic and restructuring approach through a Schiff base design on a coumarin platform for "turn-on" fluorogenic sensing of Zn<sup>2</sup>.
Pandey, Abha; Asthana, Sharad Kumar; Prakash, Anand; Roy, Jagat Kumar; Tiwari, Ida; Upadhyay, K. K.; Dalton transactions (Cambridge, England : 2003) 48 (2019) 2068–2076; doi:10.1039/c8dt03211d

data_7048503
_publ_section_title
;
 A selective hydrolytic and restructuring approach through a Schiff base
 design on a coumarin platform for &quot;turn-on&quot; fluorogenic sensing
 of Zn<sup>2</sup>.
;
_journal_issue                   6
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              2068
_journal_page_last               2076
_journal_paper_doi               10.1039/c8dt03211d
_journal_volume                  48
_journal_year                    2019
_chemical_formula_moiety         'C11 H15 N2 O'
_chemical_formula_sum            'C11 H15 N2 O'
_chemical_formula_weight         191.25
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2018-09-14 deposited with the CCDC.
2019-01-02 downloaded from the CCDC.
;
_cell_angle_alpha                78.996(5)
_cell_angle_beta                 69.498(4)
_cell_angle_gamma                83.187(4)
_cell_formula_units_Z            2
_cell_length_a                   6.8677(10)
_cell_length_b                   8.2475(12)
_cell_length_c                   9.6475(14)
_cell_measurement_reflns_used    3082
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.37
_cell_measurement_theta_min      2.52
_cell_volume                     501.63(13)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014 (Sheldrick 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0741
_diffrn_reflns_av_unetI/netI     0.0751
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            7764
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.372
_diffrn_reflns_theta_min         3.118
_exptl_absorpt_coefficient_mu    0.083
_exptl_absorpt_correction_T_max  0.9910
_exptl_absorpt_correction_T_min  0.9840
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'SADABS V2014/5 (Bruker AXS Inc.)'
_exptl_crystal_colour            COLORLESS
_exptl_crystal_density_diffrn    1.266
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             206
_exptl_crystal_size_max          0.190
_exptl_crystal_size_mid          0.160
_exptl_crystal_size_min          0.110
_refine_diff_density_max         0.356
_refine_diff_density_min         -0.354
_refine_diff_density_rms         0.073
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.042
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     130
_refine_ls_number_reflns         2497
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.042
_refine_ls_R_factor_all          0.0823
_refine_ls_R_factor_gt           0.0656
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0958P)^2^+0.1769P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1701
_refine_ls_wR_factor_ref         0.1881
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1962
_reflns_number_total             2497
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8dt03211d2.cif
_cod_data_source_block           Abh1_0m_a
_cod_depositor_comments
'Adding full bibliography for 7048502--7048504.cif.'
_cod_database_code               7048503
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.984
_shelx_estimated_absorpt_t_max   0.991
_shelx_res_checksum              9221