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应用选择定则必须注意的几个问题
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作者 程民治 《巢湖学院学报》 2002年第3期41-44,共4页
本文针对原子物理学中应用选择定则容易引起学生费解与困惑的几个常见的问题,作一具体讨论,旨在帮助学生更好地理解与正确地运用选择定则。
关键词 字称 L-S耦合 laporte定则
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Structural variation of self-assembled lanthanide supramolecular complexes induced by reaction conditions
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作者 King-Him Yim Chi-Tung Yeung +1 位作者 Ho-Yin Wong Ga-Lai Law 《Inorganic Chemistry Frontiers》 2021年第12期2952-2964,共13页
The chemistry of lanthanide supramolecular self-assembly has received much attention with many extraordinary structures discovered due to the unique photophysical properties such as the Laporte forbidden f–f transiti... The chemistry of lanthanide supramolecular self-assembly has received much attention with many extraordinary structures discovered due to the unique photophysical properties such as the Laporte forbidden f–f transition,large Stokes shift and long luminescence lifetime of lanthanides.Recent investigations have demonstrated the formation of architectures that are highly sensitive towards different stimuli,such as concentration,light,solvent and counter-anions.Various stimuli have been employed extensively for the preparation of desired supramolecular topologies with specific properties.Moreover,transformation from lower order- to higher order-supramolecular systems has also been observed by various stimuli due to the labile nature of lanthanide ions.This review summarizes recent research on the factors that govern the formation of self-assembled lanthanide supramolecules and aims to provide readers with the information required for designing functional lanthanide supramolecular systems. 展开更多
关键词 laporte forbidden f f transition structural variation photophysical properties stokes shift laporte forbidden f f transitionlarge reaction conditions lanthanide supramolecular self assembly self assembled lanthanide supramolecular complexes
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