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Updated: Jul 11, 2025

Design, Synthesis, and Photochemical Properties of Clickable Caged Compounds
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基于青的Pd2L4灯形和Pd4L8四面体之间的客体诱导的可逆转变

Alexandre Walther1, Irene Regeni1,2, Julian J Holstein1

  • 1Department of Chemistry and Chemical Biology, TU Dortmund University, Otto Hahn Straße 6, 44227 Dortmund, Germany.

Journal of the American Chemical Society
|November 14, 2023
PubMed
概括

采用青骨架的新型子显示出动态变化. 这些子可以改变形状和反转, 提供组装和客人的互动视觉跟踪.

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The Cope rearrangement is classified as a [3,3] sigmatropic shift in 1,5-dienes, leading to a more stable, isomeric 1,5-diene. The reaction involves a concerted movement of six electrons, four from two π bonds and two from a σ bond, via an energetically favorable chair-like transition state.
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To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
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Cycloheptatriene is a neutral monocyclic unsaturated hydrocarbon that consists of an odd number of carbon atoms and an intervening sp3 carbon in the ring. The three double bonds in the ring correspond to 6 π electrons, which is a Huckel number, and therefore satisfies the criteria of 4n + 2 π electrons. However, the intervening sp3 carbon disrupts the continuous overlap of p orbitals. As a result, cycloheptatriene is not aromatic.
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