Facile synthesis of highly biocompatible folic acid-functionalized SiO2 encapsulated rare-earth metal complexes nanoparticles and its application on targeted metal-based complex delivery
Xu, Xiu ling; Hu, Fan; Shuai, Qi; Dalton Trans.  (2017) –; doi:10.1039/C7DT03000B

data_7044489
_publ_section_title
;
 Facile synthesis of highly biocompatible folic acid-functionalized SiO2
 encapsulated rare-earth metal complexes nanoparticles and its application
 on targeted metal-based complex delivery
;
_journal_name_full               'Dalton Trans.'
_journal_paper_doi               10.1039/C7DT03000B
_journal_year                    2017
_chemical_formula_sum            'C48 H48 Cl6 Er2 O24'
_chemical_formula_weight         1556.08
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2017-07-11 deposited with the CCDC.
2017-10-18 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.528(3)
_cell_length_b                   9.303(2)
_cell_length_c                   39.895(7)
_cell_measurement_reflns_used    8766
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      27.74
_cell_measurement_theta_min      2.47
_cell_volume                     5392.0(19)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.976
_diffrn_measured_fraction_theta_max 0.976
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and 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  0.1381
_diffrn_reflns_av_sigmaI/netI    0.0958
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       47
_diffrn_reflns_limit_l_min       -39
_diffrn_reflns_number            23124
_diffrn_reflns_theta_full        25.30
_diffrn_reflns_theta_max         25.30
_diffrn_reflns_theta_min         2.48
_exptl_absorpt_coefficient_mu    3.474
_exptl_absorpt_correction_T_max  0.4771
_exptl_absorpt_correction_T_min  0.4221
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_density_diffrn    1.917
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             3064
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.25
_refine_diff_density_max         2.354
_refine_diff_density_min         -3.729
_refine_diff_density_rms         0.264
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.160
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     361
_refine_ls_number_reflns         4795
_refine_ls_number_restraints     12
_refine_ls_restrained_S_all      1.159
_refine_ls_R_factor_all          0.1166
_refine_ls_R_factor_gt           0.0972
_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^)+(0.0551P)^2^+151.4536P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1981
_refine_ls_wR_factor_ref         0.2067
_reflns_number_gt                3876
_reflns_number_total             4795
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c7dt03000b2.cif
_cod_data_source_block           ccl35
_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               7044489