A highly sensitive reversible fluorescent-colorimetric azino bis-Schiff base sensor for rapid detection of Pb2+in aqueous media
Ghorai, Anupam; Mondal, Jahangir; Saha, Rajat; Bhattacharya, Sumantra; Patra, Goutam K.; Anal. Methods 8 (2016) 2032–; doi:10.1039/C5AY03374H

data_1542315
_publ_section_title
;
 A highly sensitive reversible fluorescent-colorimetric azino bis-Schiff
 base sensor for rapid detection of Pb2+in aqueous media
;
_journal_issue                   9
_journal_name_full               'Anal. Methods'
_journal_page_first              2032
_journal_paper_doi               10.1039/C5AY03374H
_journal_volume                  8
_journal_year                    2016
_chemical_formula_moiety         'C32 H30 N4 O6'
_chemical_formula_sum            'C32 H30 N4 O6'
_chemical_formula_weight         566.60
_space_group_crystal_system      monoclinic
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_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   mixed
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_cell_angle_beta                 96.951(5)
_cell_angle_gamma                90.000(5)
_cell_formula_units_Z            4
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_cell_length_b                   10.520(5)
_cell_length_c                   23.100(5)
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_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      28.767
_cell_measurement_theta_min      2.130
_cell_volume                     2856.1(19)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
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_computing_molecular_graphics    'Ortep-3 for windows'
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_diffrn_ambient_temperature      293(2)
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_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device_type  'Bruker APEXII CCD area-detector'
_diffrn_measurement_method       '\f and \w'
_diffrn_radiation_type           MoK\a
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_diffrn_reflns_av_R_equivalents  0.1683
_diffrn_reflns_av_unetI/netI     0.0897
_diffrn_reflns_laue_measured_fraction_full 0.997
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_diffrn_reflns_point_group_measured_fraction_full 0.997
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_diffrn_reflns_theta_full        25.242
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_diffrn_reflns_theta_min         2.130
_diffrn_source                   'fine-focus sealed tube'
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_exptl_absorpt_correction_T_max  0.989
_exptl_absorpt_correction_T_min  0.982
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   '(SADABS; Bruker)'
_exptl_crystal_colour            Colorless
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_exptl_crystal_F_000             1192
_exptl_crystal_size_max          0.20
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_refine_diff_density_min         -0.594
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_refine_ls_extinction_coef       0.050(6)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2014/7 (Sheldrick 2014'
_refine_ls_goodness_of_fit_ref   1.088
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     380
_refine_ls_number_reflns         7313
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.088
_refine_ls_R_factor_all          0.1756
_refine_ls_R_factor_gt           0.0963
_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^)+(0.1410P)^2^+1.0386P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2211
_refine_ls_wR_factor_ref         0.2860
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3856
_reflns_number_total             7313
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c5ay03374h2.cif
_cod_data_source_block           shelx
_cod_depositor_comments          'Adding full bibliography for 1542315.cif.'
_cod_database_code               1542315
_shelx_shelxl_version_number     2014/7
_shelx_res_checksum              6282
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