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Updated: Jun 12, 2025

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
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分子单晶中的巨大热效应:动态转换和机械洞察

Mohammad Afsar Uddin1, Raúl Martín1,2, Sergio Gámez-Valenzuela3

  • 1Instituto de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, 28049 Madrid, Spain.

Journal of the American Chemical Society
|September 24, 2024
PubMed
概括

一种新的有机化合物PT-BTD在加热时呈现出明显的晶体膨胀. 这种受控的单晶转化为设计各种应用的先进热弹性材料提供了洞察力.

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Thermal Sigmatropic Reactions: Overview01:16

Thermal Sigmatropic Reactions: Overview

Sigmatropic rearrangements are a class of pericyclic reactions in which a σ bond migrates from one part of a π system to another. These are intramolecular rearrangements where the total number of σ and π bonds remain unchanged.
Sigmatropic shifts are classified based on an order term [i, j ], where i and j indicate the number of atoms across which each end of the σ bond migrates. Below are examples of a [3,3] sigmatropic shift in...
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