A hydrophilic ligand that contains only C, H, O, and N substituents and uses a 6,6′-bis(1H-1,2,3-triazol-4-yl)-2,2′-bipyridine (BTzBP) structural core has been synthesized. The effect of adding water-soluble groups onto extractant ligands has been extensively studied to facilitate the efficient partitioning of 4f and transuranic 5f elements for the treatment of spent nuclear fuel. Soft, N-donor ligands exhibit greater binding affinities for the trivalent actinides over the trivalent lanthanides, making BTzBP ligands an ideal candidate in the search for extractants to be used on an industrial scale. To date, hydrophobic BTzBPs have been shown to exhibit physical and chemical properties that might be conducive to nuclear waste processing conditions. However, hydrophilic BTzBPs have yet to be reported. Herein, we show the synthesis of a hydrophilic BTzBP ligand featuring cationic water solubilizing groups attached to the bipyridal rings.

中文翻译：

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仅含 CHON 的水溶性软 N 供体 BTzBP 配体的合成

仅包含 C、H、O 和 N 取代基并使用 6,6'-双(1H-1,2,3-三唑-4-基)-2,2'-联吡啶 (BTzBP) 结构的亲水配体核心已经合成。已经广泛研究了在萃取剂配体上添加水溶性基团的影响，以促进 4f 和超铀 5f 元素的有效分配，以处理乏核燃料。与三价镧系元素相比，软的 N 供体配体对三价锕系元素表现出更大的结合亲和力，这使得 BTzBP 配体成为寻找可用于工业规模的萃取剂的理想候选者。迄今为止，疏水性 BTzBPs 已显示出可能有利于核废料处理条件的物理和化学特性。然而，亲水性 BTzBPs 尚未报道。在此处，