作者:Laurent Rougeau、Dominique Picq、Marie Rastello、Yves Frantz
DOI:10.1016/j.tet.2008.07.085
日期:2008.9
New diacetylenic compounds are described. These compounds are unfunctionalised, monoalcohols, diols or monoesters and present irreversible thermochromic behaviour. When heated, these diynes change colour from blue to red in temperature ranging between −50 and +75 °C depending on chain lengths. A relationship between the number of atoms and the thermochromism temperature has been highlighted. Moreover
描述了新的二炔化合物。这些化合物是未官能化的一元醇,二醇或单酯,具有不可逆的热致变色行为。加热时,这些二炔根据链长的不同,在−50至+75°C的温度范围内从蓝色变为红色。原子数与热致变色温度之间的关系已被强调。此外,基于拉曼光谱,ESR和固体NMR证明了该热致变色现象的机理。