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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Matrix infrared spectroscopic and theoretical studies on the reactions of early lanthanoid atoms with nitrous oxide in excess argon
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Matrix infrared spectroscopic and theoretical studies on the reactions of early lanthanoid atoms with nitrous oxide in excess argon

机译：早期镧系元素原子与过量氩气中一氧化二氮反应的基质红外光谱和理论研究

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摘要

Reactions of laser-ablated early lanthanoid atoms (Ce, Pr, Nd, Sm, and Eu, except for radioactive Pm) with N2O molecules in excess argon have been investigated using matrix-isolation infrared spectroscopy. Lanthanoid monoxide-dinitrogen complexes, OLn(N-2) (Ln = Ce, Pr, Nd, and Sm), are observed during sample deposition and identified on the basis of isotopic shifts, mixed isotopic splitting patterns, and CCl4-doping experiments, whereas no new product is observed for Eu. The OLnNN(+) (Ln = Ce, Pr, Nd, and Sm) cations appear during sample deposition and increase visibly upon broadband irradiation (lambda > 250 nm) at the expense of the neutral OLn(N-2) complexes. Density functional theory calculations have been performed on the new products, which support identification of the OLn(N-2) and OLnNN(+) complexes from the matrix infrared spectra.
机译：使用基质隔离红外光谱研究了激光烧蚀的早期镧系元素原子（Ce，Pr，Nd，Sm和Eu，放射性Pm除外）与过量氩气中的N2O分子的反应。在样品沉积过程中观察到镧系元素一氧化二氮复合物OLn（N-2）（Ln = Ce，Pr，Nd和Sm），并根据同位素位移，混合同位素分裂模式和CCl4掺杂实验进行了鉴定，而未观察到Eu的新产品。 OLnNN（+）（Ln = Ce，Pr，Nd和Sm）阳离子出现在样品沉积过程中，并在宽带辐照（λ> 250 nm）时明显增加，但以中性OLn（N-2）络合物为代价。在新产品上进行了密度泛函理论计算，这些计算支持从基质红外光谱识别OLn（N-2）和OLnNN（+）配合物。

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