Triazole-imidazole (TA-IM) derivatives as ultrafast fluorescent probes for selective Ag<sup>+</sup> detection.
Lai, Qi; Liu, Qing; He, Ying; Zhao, Kai; Wei, Chiyu; Wojtas, Lukasz; Shi, Xiaodong; Song, Zhiguang; Organic & biomolecular chemistry 16 (2018) 7801–7805; doi:10.1039/c8ob02482k

data_7156496
_publ_section_title
;
 Triazole-imidazole (TA-IM) derivatives as ultrafast fluorescent probes
 for selective Ag<sup>+</sup> detection.
;
_journal_issue                   42
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              7801
_journal_page_last               7805
_journal_paper_doi               10.1039/c8ob02482k
_journal_volume                  16
_journal_year                    2018
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C21 H15 N5'
_chemical_formula_sum            'C21 H15 N5'
_chemical_formula_weight         337.38
_space_group_crystal_system      monoclinic
_space_group_IT_number           9
_space_group_name_Hall           'C -2yc'
_space_group_name_H-M_alt        'C 1 c 1'
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 c 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_date             2018-03-19
_audit_creation_method
;
Olex2 1.2
(compiled 2017.08.10 svn.r3458 for OlexSys, GUI svn.r5381)
;
_audit_update_record
;
2018-04-05 deposited with the CCDC.
2018-10-08 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 113.6909(6)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.3507(2)
_cell_length_b                   22.0757(6)
_cell_length_c                   10.0712(3)
_cell_measurement_reflns_used    9991
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      77.16
_cell_measurement_theta_min      4.01
_cell_volume                     1700.14(8)
_computing_cell_refinement       'SAINT V8.38A (?, 2016)'
_computing_data_reduction        'SAINT V8.38A (?, 2016)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'XL (Sheldrick, 2008)'
_diffrn_ambient_temperature      100.0
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.980
_diffrn_measurement_device_type  'Bruker D8 Venture PHOTON 100 CMOS'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  mirrors
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0211
_diffrn_reflns_av_unetI/netI     0.0187
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.980
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            13378
_diffrn_reflns_point_group_measured_fraction_full 0.900
_diffrn_reflns_point_group_measured_fraction_max 0.875
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         77.155
_diffrn_reflns_theta_min         4.005
_diffrn_source                   'INCOATEC Imus micro-focus source'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.650
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.9244
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.1356 before and 0.0377 after correction.
The Ratio of minimum to maximum transmission is 0.9244.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.318
_exptl_crystal_description       block
_exptl_crystal_F_000             704
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.146
_refine_diff_density_min         -0.172
_refine_diff_density_rms         0.034
_refine_ls_abs_structure_details
;
 Flack x determined using 1338 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.12(9)
_refine_ls_extinction_coef       0.0033(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2017/1 (Sheldrick 2017)'
_refine_ls_goodness_of_fit_ref   1.055
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     240
_refine_ls_number_reflns         3147
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.055
_refine_ls_R_factor_all          0.0246
_refine_ls_R_factor_gt           0.0242
_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^)+(0.0361P)^2^+0.4892P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0610
_refine_ls_wR_factor_ref         0.0612
_reflns_Friedel_coverage         0.779
_reflns_Friedel_fraction_full    0.803
_reflns_Friedel_fraction_max     0.769
_reflns_number_gt                3116
_reflns_number_total             3147
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8ob02482k2.cif
_cod_data_source_block           ql_taim_e
_cod_depositor_comments
'Adding full bibliography for 7156492--7156496.cif.'
_cod_database_code               7156496
_shelx_shelxl_version_number     2017/1
_shelx_estimated_absorpt_t_max   0.956
_shelx_estimated_absorpt_t_min   0.839
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C1(H1), C2(H2), C3(H3), C4(H4), C5(H5), C13(H13), C14(H14), C15(H15),
 C16(H16), C17(H17), C23(H23), C24(H24), C25(H25), C26(H26)
;
_shelx_res_checksum              39415
_olex2_submission_special_instructions 'No special instructions were received'