Tuning the Selectivity/Specificity of Fluorescent Metal Ion Sensors Based on N2S2 Pyridine-Containing Macrocyclic Ligands by Changing the Fluorogenic Subunit: Spectrofluorimetric and Metal Ion Binding Studies
M. Carla Aragoni; Massimiliano Arca; Andrea Bencini; Alexander J. Blake; Claudia Caltagirone; Greta De Filippo; Francesco A. Devillanova; Alessandra Garau; Thomas Gelbrich; Michael B. Hursthouse; Francesco Isaia; Vito Lippolis; Marta Mameli; Palma Mariani; Barbara Valtancoli; Claire Wilson; Inorganic Chemistry 46 (2007) 4548–4559; doi:10.1021/ic070169e

data_4308164
_publ_section_title
;
Tuning the Selectivity/Specificity of Fluorescent Metal Ion Sensors Based
on N2S2 Pyridine-Containing Macrocyclic Ligands by Changing the Fluorogenic
Subunit: Spectrofluorimetric and Metal Ion Binding Studies
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              4548
_journal_page_last               4559
_journal_paper_doi               10.1021/ic070169e
_journal_volume                  46
_journal_year                    2007
_chemical_formula_moiety         'C23 H26 Hg N4 S2, 2(Cl O4)'
_chemical_formula_sum            'C23 H26 Cl2 Hg N4 O8 S2'
_chemical_formula_weight         822.09
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-I 2ya'
_symmetry_space_group_name_H-M   'I 1 2/a 1'
_atom_sites_solution_hydrogens
'Methyl H atoms from delta-F; others placed geometrically'
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 98.407(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   22.199(2)
_cell_length_b                   8.7307(5)
_cell_length_c                   28.982(2)
_cell_measurement_reflns_used    14855
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      2.4
_cell_volume                     5556.7(7)
_computing_cell_refinement       'Bruker SAINT version 6.36a (Bruker, 2000)'
_computing_data_collection       'Bruker SMART version 5.625 (Bruker, 2001)'
_computing_data_reduction        'Bruker SAINT; Bruker SHELXTL (Bruker, 2001)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material
'enCIFer(Allen et al.,2004);PLATON(Spek,2003)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1998)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker SMART APEX CCD area detector'
_diffrn_measurement_method       omega
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.099
_diffrn_reflns_av_sigmaI/netI    0.023
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       36
_diffrn_reflns_limit_l_min       -37
_diffrn_reflns_number            25546
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.52
_diffrn_reflns_theta_min         2.44
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    5.937
_exptl_absorpt_correction_T_max  0.140
_exptl_absorpt_correction_T_min  0.060
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(Bruker SHELXTL; Bruker, 2001))'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.965
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             3216
_exptl_crystal_size_max          0.56
_exptl_crystal_size_mid          0.29
_exptl_crystal_size_min          0.04
_refine_diff_density_max         2.04
_refine_diff_density_min         -1.53
_refine_diff_density_rms         0.16
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.99
_refine_ls_hydrogen_treatment    'rigid rotor; riding model'
_refine_ls_matrix_type           full
_refine_ls_number_parameters     362
_refine_ls_number_reflns         6363
_refine_ls_number_restraints     123
_refine_ls_restrained_S_all      0.98
_refine_ls_R_factor_all          0.0352
_refine_ls_R_factor_gt           0.0329
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.070P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0864
_refine_ls_wR_factor_ref         0.0876
_reflns_number_gt                5723
_reflns_number_total             6363
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic070169e_si_3.cif
_cod_data_source_block           hgqusn
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      'I 2/a'
_cod_database_code               4308164