Katelyn M. Clutterbuck, Hunter J. Windsor, Deanna M. D'Alessandro and Girish Lakhwani
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引用次数: 0
Abstract
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.
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.