The colors of polydiacetylenes: a commentary
The colors of polydiacetylenes: a commentary
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DOI：
10.1021/jp0638437
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发表时间：
2006-08-17
影响因子：
3.3
通讯作者：
Schott, Michel
中科院分区：
文献类型：
--
作者：
Schott, Michel
聚二乙炔（PDA）可以呈现多种颜色，主要是“红色”和“蓝色”，并且蓝色到红色的颜色转变通常被认为是从有序状态到无序状态的转变。最近对单个孤立PDA链的研究表明这是不正确的：红色链可以是准完美的量子线。这种转变发生在两种不同的链构象之间，每一种构象可能是完全有序的，也可能不是。混乱，当它发生时，是转型的副产品。
Polydiacetylenes (PDA) can take several colors, mostly "red" and "blue", and blue-to-red color transitions are usually considered as transitions from a well ordered state to a disordered one. Recent work on single isolated PDA chains shows that this is not correct: red chains can be quasi-perfect quantum wires. The transition is between two different chain conformations, and each may, or may not, be perfectly ordered. Disorder, when it occurs, is a side-product of the transformation.