Synthesis and Extraction Properties of Tripodal Tetraphosphoryl Ligands on the Triphenylphosphine Oxide Platform

New tetraphosphoryl tripodal ligands on the triphenylphosphine oxide platform [2-Ph2P(O)(CH2)(n)OC6H4](3)PO with different linker length (n = 3, 4) were synthesized. Their composition and structure were determined by elemental analysis, IR and multinuclear (H-1, C-13, and P-31) NMR spectroscopy, and X-ray diffraction analysis. Extraction properties of the ligands were studied using the example of extraction of microamounts of f-elements from an aqueous phase into 1,2-dichloroethane.

Automated summary

New tetraphosphoryl tripodal ligands with different linker lengths (n = 3, 4) were synthesized on the triphenylphosphine oxide platform [2-Ph2P(O)(CH2)(n)OC6H4](3)PO. Their composition and structure were determined using elemental analysis, IR and multinuclear (H-1, C-13, and P-31) NMR spectroscopy, and X-ray diffraction analysis. The extraction properties of the ligands were studied by extracting microamounts of f-elements from an aqueous phase into 1,2-dichloroethane.