Colorimetric detection of fluoride ion in aqueous medium by thiourea derivatives: a transition metal ion assisted approach
Mahanta, Sanjeev Pran; Choudhury, Diganta; Das, Rituraj; Talukdar, Dhrubajyoti; Sarma, Plaban Jyoti; Kuilya, Hemrupa; Thakuria, Ranjit; Dalton Transactions  (2021) –; doi:10.1039/D1DT02173G

data_7708392
_publ_section_title
;
 Colorimetric detection of fluoride ion in aqueous medium by thiourea
 derivatives: a transition metal ion assisted approach
;
_journal_name_full               'Dalton Transactions'
_journal_paper_doi               10.1039/D1DT02173G
_journal_year                    2021
_chemical_formula_sum            'C14 H12 N2 O2 S'
_chemical_formula_weight         272.32
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2016/6
_audit_update_record
;
2021-02-25 deposited with the CCDC.	2021-09-20 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 95.230(5)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.7375(17)
_cell_length_b                   5.1423(9)
_cell_length_c                   25.972(5)
_cell_measurement_reflns_used    3357
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      21.89
_cell_measurement_theta_min      4.26
_cell_volume                     1295.1(4)
_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-2016/6 (Sheldrick, 2016)'
_computing_structure_solution    'SHELXL-2016/6 (Sheldrick, 2016)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_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  0.0623
_diffrn_reflns_av_unetI/netI     0.0324
_diffrn_reflns_Laue_measured_fraction_full 0.989
_diffrn_reflns_Laue_measured_fraction_max 0.989
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            20726
_diffrn_reflns_point_group_measured_fraction_full 0.989
_diffrn_reflns_point_group_measured_fraction_max 0.989
_diffrn_reflns_theta_full        25.025
_diffrn_reflns_theta_max         25.025
_diffrn_reflns_theta_min         4.040
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.249
_exptl_absorpt_correction_T_max  0.982
_exptl_absorpt_correction_T_min  0.972
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker AXS SADABS program'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.397
_exptl_crystal_description       needle
_exptl_crystal_F_000             568
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: Tetrahydrofuran'
_exptl_crystal_size_max          0.250
_exptl_crystal_size_mid          0.090
_exptl_crystal_size_min          0.070
_refine_diff_density_max         0.150
_refine_diff_density_min         -0.287
_refine_diff_density_rms         0.043
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     184
_refine_ls_number_reflns         2257
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.0659
_refine_ls_R_factor_gt           0.0418
_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^)+(0.0564P)^2^+0.3453P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1036
_refine_ls_wR_factor_ref         0.1192
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1579
_reflns_number_total             2257
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1dt02173g2.cif
_cod_data_source_block           rt_ps_44_spm_c2_0m_a
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7708392
_shelx_shelxl_version_number     2016/6
_shelx_estimated_absorpt_t_min   0.940
_shelx_estimated_absorpt_t_max   0.983
_exptl_absorpt_special_details   'Sheldrick,G.M.,2015,University of gottingen'
_shelx_res_checksum              22456