Emission Control by Molecular Manipulation of Double-Paddled Binuclear PtII Complexes at the Air-Water Interface.,Chemistry - An Asian Journal

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Emission Control by Molecular Manipulation of Double-Paddled Binuclear PtII Complexes at the Air-Water Interface.
Chemistry - An Asian Journal ( IF 3.5 ) Pub Date : 2020-01-10 , DOI: 10.1002/asia.201901691
Junya Adachi ₁ , Taizo Mori _{2,

3} , Ryo Inoue ₁ , Masaya Naito ₁ , Ngoc Ha-Thu Le ₁ , Soichiro Kawamorita ₁ , Jonathan P Hill ₃ , Takeshi Naota ₁ , Katsuhiko Ariga _{2,

3}

Affiliation

Molecular functions depend on conformations and motions of the corresponding molecular species. An air-water interface is a suitable asymmetric field for the control of molecular conformations and motions under a small applied force. In this work, double-paddled binuclear PtII complexes containing pyrazole rings linked by alkyl spacers were synthesized and their orientations and emission properties dynamically manipulated at the air-water interface. The complexes emerge from water with concurrent variation of interface orientation of the planes of the PtII complexes from perpendicular to parallel during mechanical compression suggesting a unique 'submarine emission'. Phosphorescence of the complexes is quenched at the air-water interface prior to monolayer formation with intensities subsequently rapidly increasing during monolayer compression. These results indicate that asymmetric reactions and motions might be controlled by applying mechanical force at the air-water interface.

中文翻译：

通过分子操纵在空气-水界面处双填充双核PtII配合物的排放控制。

分子功能取决于相应分子种类的构象和运动。空气-水界面是适合的不对称场，用于在较小的作用力下控制分子构象和运动。在这项工作中，合成了包含通过烷基间隔子连接的吡唑环的双桨双核PtII配合物，并在空气-水界面动态控制了它们的方向和发射特性。复合物从水中涌现，在机械压缩过程中，PtII复合物平面的界面取向从垂直向平行变化，这表明存在独特的“海底发射”。在形成单层之前，将复合物的磷光在空气-水界面处淬灭，其强度随后在单层压缩过程中迅速增加。这些结果表明，可以通过在空气-水界面处施加机械力来控制不对称反应和运动。

更新日期：2020-01-11

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