Design and synthesis of triazolyl coumarins as Hg2+ selective fluorescent chemosensors.
Ho, I-Ting; Lai, Ting-Ling; Wu, Ren-Tsung; Tsai, Ming-Tsung; Wu, Chun-Ming; Lee, Gene-Hsiang; Chung, Wen-Sheng; The Analyst 137 (2012) 5770–5776; doi:10.1039/c2an36076d

data_1514915
_publ_section_title
;
 Design and synthesis of triazolyl coumarins as Hg2+ selective fluorescent
 chemosensors.
;
_journal_issue                   24
_journal_name_full               'The Analyst'
_journal_page_first              5770
_journal_page_last               5776
_journal_paper_doi               10.1039/c2an36076d
_journal_volume                  137
_journal_year                    2012
_chemical_formula_sum            'C25 H25 N3 O5'
_chemical_formula_weight         447.48
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                96.531(2)
_cell_angle_beta                 96.165(2)
_cell_angle_gamma                93.056(2)
_cell_formula_units_Z            2
_cell_length_a                   5.7298(4)
_cell_length_b                   11.4420(8)
_cell_length_c                   17.7012(13)
_cell_measurement_reflns_used    1336
_cell_measurement_temperature    220(2)
_cell_measurement_theta_max      21.24
_cell_measurement_theta_min      2.33
_cell_volume                     1143.77(14)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      220(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'BRUKER SMART APEXCCD area detector'
_diffrn_measurement_method       'omega scans'
_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  0.0393
_diffrn_reflns_av_sigmaI/netI    0.0551
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            10379
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.17
_exptl_absorpt_coefficient_mu    0.092
_exptl_absorpt_correction_T_max  0.9963
_exptl_absorpt_correction_T_min  0.9470
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.299
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             472
_exptl_crystal_size_max          0.60
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.784
_refine_diff_density_min         -0.377
_refine_diff_density_rms         0.124
_refine_ls_extinction_coef       0.037(5)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.106
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     303
_refine_ls_number_reflns         4027
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.106
_refine_ls_R_factor_all          0.1129
_refine_ls_R_factor_gt           0.0805
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0969P)^2^+0.5312P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1918
_refine_ls_wR_factor_ref         0.2179
_reflns_number_gt                2811
_reflns_number_total             4027
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2an36076d.txt
_cod_data_source_block           ic12713
_cod_depositor_comments
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The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to
/usr/data/users/saulius/automatic-downloads/retrospective/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not_measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               1514915