Development of Heavy Element Chemistry at Interfaces: Observing Actinide Complexes at the Oil/Water Interface in Solvent Extraction by Nonlinear Vibrational Spectroscopy
Ryoji Kusaka, Masayuki Watanabe
Abstract
symmetric stretch vibrational signals of the HDEHP ligands clearly demonstrated that uranyl ions form interfacial complexes with HDEHP at the oil/water interface. The interfacial uranyl-HDEHP complexes were formed with uranyl ions coming from both the aqueous and oil phases, strongly suggesting that the interfacial complex is an intermediate to cross the oil/water interface. Density functional theory calculations proposed the molecular structure of the interfacial uranyl-HDEHP complex.
Topics & Concepts
UranylChemistryActinideAqueous solutionSpectroscopyInorganic chemistryExtraction (chemistry)SolventAqueous two-phase systemPhase (matter)DodecaneAnalytical Chemistry (journal)IonPhysical chemistryOrganic chemistryPhysicsQuantum mechanicsSpectroscopy and Quantum Chemical StudiesElectrochemical Analysis and ApplicationsChemical and Physical Properties in Aqueous Solutions