Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
Dalton Trans. 2018 Oct 23;47(41):14452-14461. doi: 10.1039/c8dt02658k.
Characterizing how actinide properties change across the f-element series is critical for improving predictive capabilities and solving many nuclear problems facing our society. Unfortunately, it is difficult to make direct comparisons across the 5f-element series because so little is known about trans-plutonium elements. Results described herein help to address this issue through isolation of An(S2CNEt2)3(N2C12H8) (Am, Cm, and Cf). These findings included the first single crystal X-ray diffraction measurements of Cm-S (mean of 2.86 ± 0.04 Å) and Cf-S (mean of 2.84 ± 0.04 Å) bond distances. Furthermore, they highlight the potential of An(S2CNEt2)3(N2C12H8) for providing a test bed for comparative analyses of actinide versus lanthanide bonding interactions.
描述锕系元素性质如何在 f 族系列中变化对于提高预测能力和解决我们社会面临的许多核问题至关重要。不幸的是，由于对钚后元素知之甚少，因此很难在 5f 族系列中进行直接比较。本文所述的研究结果通过分离 An(S2CNEt2)3(N2C12H8)（镅、锔和锎）来解决这个问题。这些发现包括首次对 Cm-S（平均值为 2.86±0.04Å）和 Cf-S（平均值为 2.84±0.04Å）键长进行的单晶 X 射线衍射测量。此外，它们突出了 An(S2CNEt2)3(N2C12H8)在提供用于比较分析锕系元素与镧系元素键合相互作用的测试平台方面的潜力。
