樟脑酸盐基手性金属-有机骨架的光开关热响应

IF 3.3 3区 化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR
Katelyn M. Clutterbuck, Hunter J. Windsor, Deanna M. D'Alessandro and Girish Lakhwani
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引用次数: 0

摘要

光可切换手性材料在传感、非线性光学和液晶器件等各种应用中备受追捧。然而,开关的起源和控制尚未得到很好的研究。在这里,我们报道了两种手性萘二亚胺(NDI)基金属有机骨架(MOF)材料,[Zn4(cam)4(DPNDI)2]∙3DMF (Zn-MOF) (cam2-=樟脑酸,DPNDI= N,N ' -di(4-吡啶基)-1,4,5,8-萘四羧基二亚胺)和[Cd4(cam)4(DPNDI)4]∙3EtOH∙5DMF (Cd-MOF),它们经历了NDI核心的光诱导还原。与Zn-MOF相比,Cd-MOF中产生的混合价态的离域稳定了自由基态并改变了其响应。光诱导还原揭示了Cd-MOF的圆二色光谱符号的可逆变化。这些材料在理解和控制下一代设备的热学材料方面表现出了希望。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Photoswitching chiroptical response in camphorate-based chiral metal–organic frameworks†

Photoswitching chiroptical response in camphorate-based chiral metal–organic frameworks†

Photoswitchable chiral materials are highly sought for various applications, including sensing, nonlinear optics, and liquid-crystalline devices. However, the origin and control of switching have not been well studied. Here, we report two chiral naphthalene diimide (NDI)-based Metal Organic Framework (MOF) materials, [Zn4(cam)4(DPNDI)2]·3DMF (Zn-MOF) (cam2− = camphorate, DPNDI = N,N′-di(4-pyridyl)-1,4,5,8-naphthalenetetracarboxydiimide) and [Cd4(cam)4(DPNDI)4]·3EtOH·5DMF (Cd-MOF) that undergo a photoinduced reduction of the NDI cores. Delocalisation of the generated mixed-valence state in Cd-MOF stabilises the radical state and alters its response in comparison to Zn-MOF. The photoinduced reduction reveals a reversible change in the sign of the circular dichroism spectrum of Cd-MOF. These materials show promise in understanding and controlling chiroptical materials for next-generation devices.

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来源期刊
Dalton Transactions
Dalton Transactions 化学-无机化学与核化学
CiteScore
6.60
自引率
7.50%
发文量
1832
审稿时长
1.5 months
期刊介绍: Dalton Transactions is a journal for all areas of inorganic chemistry, which encompasses the organometallic, bioinorganic and materials chemistry of the elements, with applications including synthesis, catalysis, energy conversion/storage, electrical devices and medicine. Dalton Transactions welcomes high-quality, original submissions in all of these areas and more, where the advancement of knowledge in inorganic chemistry is significant.
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