Synthesis and structural characterization, by spectroscopic and computational methods, of two fluorescent 3-hydroxy-4-pyridinone chelators bearing sulphorhodamine B and naphthalene
Rangel, Maria; Moniz, Tania; Coimbra, João T. S.; Bras, Natercia Fernandes; Cunha-Silva, Luis; Ramos, Maria Joao; Fernandes, Pedro Alexandrino; de Castro, Baltazar; RSC Adv.  (2015) –; doi:10.1039/C5RA23217A

data_7223631
_publ_section_title
;
 Synthesis and structural characterization, by spectroscopic and
 computational methods, of two fluorescent 3-hydroxy-4-pyridinone
 chelators bearing sulphorhodamine B and naphthalene
;
_journal_name_full               'RSC Adv.'
_journal_paper_doi               10.1039/C5RA23217A
_journal_year                    2015
_chemical_formula_moiety         'C26 H25 N3 O2 S'
_chemical_formula_sum            'C26 H25 N3 O2 S'
_chemical_formula_weight         443.55
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   mixed
_audit_creation_date             '02 November 2015'
_audit_creation_method           'SHELXL-2014/7 and enCIFer'
_audit_update_record
;
2015-11-02 deposited with the CCDC.
2015-12-22 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 106.834(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.8764(5)
_cell_length_b                   9.0072(4)
_cell_length_c                   18.6937(8)
_cell_measurement_reflns_used    4028
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      24.59
_cell_measurement_theta_min      3.21
_cell_volume                     2236.36(16)
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker X8 Kappa CCD APEX II'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0644
_diffrn_reflns_av_unetI/netI     0.0574
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            29679
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.371
_diffrn_reflns_theta_min         3.715
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.174
_exptl_absorpt_correction_T_max  0.988
_exptl_absorpt_correction_T_min  0.962
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
(SADABS; Bruker, 2012)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.317
_exptl_crystal_description       plate
_exptl_crystal_F_000             936
_exptl_crystal_size_max          0.220
_exptl_crystal_size_mid          0.060
_exptl_crystal_size_min          0.010
_refine_diff_density_max         0.235
_refine_diff_density_min         -0.258
_refine_diff_density_rms         0.043
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.012
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     297
_refine_ls_number_reflns         4569
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.012
_refine_ls_R_factor_all          0.0959
_refine_ls_R_factor_gt           0.0469
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0382P)^2^+0.8067P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0902
_refine_ls_wR_factor_ref         0.1050
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2877
_reflns_number_total             4569
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c5ra23217a2.cif
_cod_data_source_block           T97-comp3
_cod_database_code               7223631
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.963
_shelx_estimated_absorpt_t_max   0.998
_shelx_res_checksum              25571