A Multi‐Stimuli‐Responsive Oxazine Molecular Switch: A Strategy for the Design of Electrochromic Materials,Chemistry - An Asian Journal

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A Multi‐Stimuli‐Responsive Oxazine Molecular Switch: A Strategy for the Design of Electrochromic Materials
Chemistry - An Asian Journal ( IF 3.5 ) Pub Date : 2018-04-17 , DOI: 10.1002/asia.201800282
Xiaojun Wang ₁ , Chang Gu ₁ , Hongzhi Zheng ₁ , Yu-Mo Zhang ₁ , Sean Xiao-An Zhang ₁

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A multi‐state and multi‐stimuli‐responsive oxazine molecular switch that combines an electro‐base property and sensitive base/acid‐responsive properties was designed and synthesized. The multi‐state structures of the molecular switch, with different colors, were predicted by comparing the optical properties with reference molecules and confirmed by using NMR spectroscopy. The color‐switching mechanism under stimulation with acids and bases was investigated by using DFT calculations. Three single states can be obtained and the switching is unidirectional under acid and base stimulation. The electrochromic phenomenon of the molecular switch, which combines its electro‐base and base‐sensitive properties, was demonstrated. An electrochromic device that exhibited good electrochromic properties with excellent reversibility (2000 cycles) and high coloration efficiency (804 cm² C⁻¹) was successfully constructed.

中文翻译：

多刺激响应的恶嗪分子开关：电致变色材料设计的策略。

设计并合成了一种具有电基性质和敏感的碱/酸响应特性的多状态，多刺激响应的恶嗪分子开关。通过将光学特性与参考分子进行比较，可以预测具有不同颜色的分子开关的多态结构，并通过NMR光谱法进行确认。利用DFT计算研究了在酸和碱刺激下的颜色转换机制。可以得到三个单一状态，并且在酸和碱刺激下该切换是单向的。证明了分子开关的电致变色现象，结合了其电基性和碱敏性。² C ^-1）的构建成功。

更新日期：2018-04-17

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