The Interaction of Fluoride with Fluorogenic Ureas: An ON1-OFF-ON2 Response
Valeria Amendola; Greta Bergamaschi; Massimo Boiocchi; Luigi Fabbrizzi; Lorenzo Mosca; Journal of the American Chemical Society 135 (2013) 6345–6355; doi:10.1021/ja4019786

data_4119657
_publ_contact_author_address
;
Dipartimento di Chimica
University of Pavia
via Taramelli 12, I-27100 Pavia, ITALY
;
_publ_contact_author_email
;
luigi.fabbrizzi@unipv.it
;
_publ_contact_author_name        'Prof. Luigi Fabbrizzi'
_publ_section_title
;
 The Interaction of Fluoride with Fluorogenic Ureas: An ON1-OFF-ON2
 Response
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              6345
_journal_page_last               6355
_journal_paper_doi               10.1021/ja4019786
_journal_volume                  135
_journal_year                    2013
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C21 H16 N2 O'
_chemical_formula_sum            'C21 H16 N2 O'
_chemical_formula_weight         312.36
_chemical_name_systematic
;
 N-(2-anthracenyl)-N'-(phenyl)-urea
;
_space_group_IT_number           9
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      9
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 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                90.00
_cell_angle_beta                 99.452(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   33.056(4)
_cell_length_b                   4.6392(6)
_cell_length_c                   10.2004(14)
_cell_measurement_reflns_used    932
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      24
_cell_measurement_theta_min      2
_cell_volume                     1543.0(3)
_computing_cell_refinement       'SAINT (Bruker-Axs Inc)'
_computing_data_collection       'SMART (Bruker-Axs Inc)'
_computing_data_reduction        'SAINT (Bruker-Axs Inc)'
_computing_molecular_graphics    'Mercury (Macrae et al., 2008)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR-97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 8.333
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker-Axs Smart-Apex CCD'
_diffrn_measurement_method       'omega scan'
_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  0.0319
_diffrn_reflns_av_sigmaI/netI    0.0284
_diffrn_reflns_limit_h_max       32
_diffrn_reflns_limit_h_min       -38
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            5323
_diffrn_reflns_theta_full        25.05
_diffrn_reflns_theta_max         25.05
_diffrn_reflns_theta_min         1.25
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.084
_exptl_absorpt_correction_T_max  0.999
_exptl_absorpt_correction_T_min  0.794
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs (Sheldrick, 1996)'
_exptl_crystal_colour            COLOURLESS
_exptl_crystal_density_diffrn    1.345
_exptl_crystal_description       'PLATY PRISM'
_exptl_crystal_F_000             656
_exptl_crystal_size_max          0.5
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.01
_refine_diff_density_max         0.129
_refine_diff_density_min         -0.122
_refine_diff_density_rms         0.032
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.113
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     223
_refine_ls_number_reflns         1372
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      1.112
_refine_ls_R_factor_all          0.0586
_refine_ls_R_factor_gt           0.0436
_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^)+(0.0436P)^2^+0.2021P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0929
_refine_ls_wR_factor_ref         0.1016
_reflns_number_gt                1107
_reflns_number_total             1372
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            ja4019786_si_001_1.cif
_cod_data_source_block           1_fluo_urea
_cod_original_cell_volume        1543.0(4)
_cod_original_sg_symbol_H-M      'C c'
_cod_database_code               4119657