莱斯大学化学家劳尔·埃尔南德斯·桑切斯团队开发了一种创新的分子篮结构，使稀土金属钕能够与氧形成pi相互作用，从而产生高反应性的兰系氧化物化合物1。这一设计突破了先前的认知——兰系金属与氧等小分子间的pi相互作用曾被认为不太可能实现1。研究成果已发表在《美国化学学会杂志》上，由洪-雷伊·徐、亚历杭德罗·富恩特斯·贝尔特兰和埃尔南德斯·桑切斯共同撰写1。
该分子篮的关键创新在于其精细设计的八配位配体环境，能够对金属原子的位置进行精确控制1。研究团队相信这一配体支架可以推广到大多数兰系元素，甚至可能扩展到锕系元素1。这项突破可能为生物反应和化学制造中的铁基分子提供替代品1。研究由莱斯大学启动资金、罗伯特·韦尔奇基金会以及韦尔奇基金会资助项目（C-2142-20230405）提供支持1。
Chemists at Rice University have developed a specialized molecular basket structure that allows the rare-earth metal neodymium to form pi interactions with oxygen, creating highly reactive lanthanide oxide compounds1. This achievement represents a significant advance, as pi interactions between lanthanide metals and small molecules like oxygen were previously considered unlikely to occur1.
The key innovation lies in the molecular basket's design, which enables precise control over the metal atom's position within an eight-coordinate ligand environment1. This careful positioning facilitates the chemical interactions that were previously thought impossible. The findings, published in the Journal of the American Chemical Society, were authored by Hong-Lei Xu, Alejandro Fuentes Beltrán, and Raúl Hernández Sánchez1. The research was supported by Rice University startup funds, the Robert A. Welch Foundation, and a Welch Foundation Grant (C-2142-20230405)1.
The research team believes the same ligand scaffold could support similar reactions with most lanthanide elements and potentially actinide elements as well1. These results may provide alternatives to iron-based molecular systems currently used in biological reactions and chemical manufacturing1.
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