Interrogating Light-initiated Dynamics in Metal–Organic Frameworks with Time-resolved Spectroscopy,Chemical Reviews

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Interrogating Light-initiated Dynamics in Metal–Organic Frameworks with Time-resolved Spectroscopy
Chemical Reviews ( IF 51.4 ) Pub Date : 2021-10-06 , DOI: 10.1021/acs.chemrev.1c00528
Brian Pattengale ₁ , Sarah Ostresh ₁ , Charles A Schmuttenmaer ₁ , Jens Neu ₁

Affiliation

Time-resolved spectroscopy is an essential part of both fundamental and applied chemical research. Such techniques access light-initiated dynamics on time scales ranging from femtosecond to microsecond. Many techniques falling under this description have been applied to gain significant insight into metal–organic frameworks (MOFs), a diverse class of porous coordination polymers. MOFs are highly tunable, both compositionally and structurally, and unique challenges are encountered in applying time-resolved spectroscopy to interrogate their light-initiated properties. These properties involve various excited state mechanisms such as crystallographically defined energy transfer, charge transfer, and localization within the framework, photoconductivity, and structural dynamics. The field of time-resolved MOF spectroscopic studies is quite nascent; each original report cited in this review was published within the past decade. As such, this review is a timely and comprehensive summary of the most significant contributions in this emerging field, with focuses on the overarching spectroscopic concepts applied and on identifying key challenges and future outlooks moving forward.

中文翻译：

用时间分辨光谱研究金属有机框架中的光引发动力学

时间分辨光谱是基础和应用化学研究的重要组成部分。这种技术在从飞秒到微秒的时间尺度上访问光引发的动力学。许多属于这种描述的技术已被应用于深入了解金属有机框架 (MOF)，这是一种多样化的多孔配位聚合物。MOF 在成分和结构上都是高度可调的，并且在应用时间分辨光谱来询问它们的光引发特性时遇到了独特的挑战。这些特性涉及各种激发态机制，例如晶体学定义的能量转移、电荷转移和框架内的定位、光电导性和结构动力学。时间分辨 MOF 光谱研究领域还处于起步阶段。本次审查中引用的每一份原始报告都是在过去十年内发表的。因此，这篇评论是对这一新兴领域最重要贡献的及时和全面的总结，重点关注应用的总体光谱概念以及确定关键挑战和未来展望。

更新日期：2021-10-06

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