Incorporating Spacer Molecules into the Tetrathiafulvalene-p-Chloranil Charge-Transfer Framework: Modulating the Neutral-Ionic Phase Transition.,The Journal of Physical Chemistry Letters

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Incorporating Spacer Molecules into the Tetrathiafulvalene-p-Chloranil Charge-Transfer Framework: Modulating the Neutral-Ionic Phase Transition.
The Journal of Physical Chemistry Letters ( IF 4.8 ) Pub Date : 2020-01-24 , DOI: 10.1021/acs.jpclett.9b03847
Yukihiro Takahashi _{1,

2} , Mika Takehisa ₂ , Eri Tanaka ₂ , Jun Harada _{1,

2} , Reiji Kumai ₃ , Tamotsu Inabe _{1,

2}

Affiliation

The charge-transfer (CT) tetrathiafulvalene-p-chloranil (TTF-CA) crystal, a representative functional organic electronic material, has been the subject of both basic and applied research. This material shows a neutral-ionic phase transition (NIPT) that induces drastic changes in its physical properties. Here, we use this crystal as a framework and demonstrate a method for modulating physical properties of TTF-CA. A number of multicomponent (ternary) CT crystals were obtained by crystallizing TTF-CA with a third molecular species. These complexes all contain molecular sheets formed with TTF-CA; however, the third molecules were differently inserted between these sheets as spacers to induce a variety of physical properties in the CT crystals. Some showed spacer-modified NIPT, while the transition to the ionic state was suppressed in one complex despite the presence of TTF-CA sheets, which indicates that spacer molecules can modulate the physical properties or functions of CT crystals.

中文翻译：

将间隔分子掺入四硫富瓦烯-对氯腈电荷转移框架：调节中性离子相变。

电荷转移（CT）四硫富瓦烯-对氯甲腈（TTF-CA）晶体是一种代表性的功能有机电子材料，已经成为基础研究和应用研究的主题。该材料显示出中性离子相变（NIPT），可引起其物理性质发生剧烈变化。在这里，我们使用这种晶体作为框架，并演示了一种调节TTF-CA物理性能的方法。通过使TTF-CA与第三种分子种类结晶，可以得到许多多组分（三元）CT晶体。这些复合物均含有与TTF-CA形成的分子片。但是，第三分子以不同的间隔插入这些薄片之间，从而在CT晶体中引起多种物理性质。一些人展示了间隔物修饰的NIPT，

更新日期：2020-02-06

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