Shi Lin Zhang, Lu Yu, Yang Liu, John F. Gallagher, Huai Xin Hao, Yong Qiang Wan, Zhi Peng Wang, Jun Li Wang, Tai Hong Yan, Wei Qun Shi, Pavle Mocilac
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引用次数: 0
Abstract
Herein, we present new hydrophilic tridentate ligands, bistriazolyl pyrazines. Their design was inspired by structurally similar and promising bis-triazolyl-pyridines (PyTri) ligands as well as theoretically derived criteria for the design of tridentate ligands for An/Ln separations suggested by theoretical studies. These ligands have been synthesised, characterised and tested as possible extractants for An/Ln nuclear separations. In addition, UV and fluorescence studies, pKa determination, and crystallographic and theoretical studies have been performed to explain their observed behaviour. Although the results of the solvent extraction studies have shown that these ligands do not possess sufficient selectivity for the extraction of Am vs Eu in i-SANEX conditions, this study presents a valuable test of the criteria for the design of tridentate heterocyclic N-donor ligands for advanced nuclear separation as postulated by theoretical studies a decade ago. Our experimental observations and theoretical studies have found that these criteria might not be the best guidance for designing novel hydrophilic ligands for An/Ln separations in i-SANEX conditions.
期刊介绍:
Separation and Purification Technology is a premier journal committed to sharing innovative methods for separation and purification in chemical and environmental engineering, encompassing both homogeneous solutions and heterogeneous mixtures. Our scope includes the separation and/or purification of liquids, vapors, and gases, as well as carbon capture and separation techniques. However, it's important to note that methods solely intended for analytical purposes are not within the scope of the journal. Additionally, disciplines such as soil science, polymer science, and metallurgy fall outside the purview of Separation and Purification Technology. Join us in advancing the field of separation and purification methods for sustainable solutions in chemical and environmental engineering.