Fluorenylidene bridged cyclotriphosphazenes: 'turn-off' fluorescence probe for Cu(2+) and Fe(3+) ions.
Yenilmez Çiftçi, Gönül; Senkuytu, Elif; Durmuş, Mahmut; Yuksel, Fatma; Kılıç, Adem; Dalton transactions (Cambridge, England : 2003) 42 (2013) 14916–14926; doi:10.1039/c3dt51426a

data_7023519
_publ_section_title
;
 Fluorenylidene bridged cyclotriphosphazenes: 'turn-off' fluorescence
 probe for Cu(2+) and Fe(3+) ions.
;
_journal_issue                   41
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              14916
_journal_page_last               14926
_journal_paper_doi               10.1039/c3dt51426a
_journal_volume                  42
_journal_year                    2013
_chemical_formula_sum            'C41 H50 Cl10 N8 O4 P6'
_chemical_formula_weight         1259.21
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90
_cell_angle_beta                 102.524(6)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   37.799(4)
_cell_length_b                   8.8149(10)
_cell_length_c                   16.790(2)
_cell_measurement_reflns_used    9916
_cell_measurement_temperature    120.(2)
_cell_measurement_theta_max      28.27
_cell_measurement_theta_min      2.21
_cell_volume                     5461.2(11)
_computing_cell_refinement       'SAINT V7.66A (Bruker AXS, 2009)'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'SAINT V7.66A (Bruker AXS, 2009)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      120.(2)
_diffrn_detector_area_resol_mean 8.3333
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0489
_diffrn_reflns_av_sigmaI/netI    0.0353
_diffrn_reflns_limit_h_max       44
_diffrn_reflns_limit_h_min       -44
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            29932
_diffrn_reflns_theta_full        25.03
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         1.10
_diffrn_source                   'sealed tube'
_exptl_absorpt_coefficient_mu    0.735
_exptl_absorpt_correction_T_max  0.96
_exptl_absorpt_correction_T_min  0.78
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2008/1 (Bruker AXS)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.532
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             2576
_exptl_crystal_size_max          0.370
_exptl_crystal_size_mid          0.190
_exptl_crystal_size_min          0.060
_refine_diff_density_max         0.411
_refine_diff_density_min         -0.365
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     319
_refine_ls_number_reflns         4818
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.058
_refine_ls_R_factor_all          0.0424
_refine_ls_R_factor_gt           0.0324
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0283P)^2^+12.8986P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0761
_refine_ls_wR_factor_ref         0.0831
_reflns_number_gt                4079
_reflns_number_total             4818
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3dt51426a.txt
_cod_data_source_block           CCDC_920134_GYOL8
_cod_database_code               7023519