Direct Observation of Node-to-Node Communication in Zeolitic Imidazolate Frameworks

Document Type

Article

Language

eng

Publication Date

9-4-2018

Publisher

American Chemical Society

Source Publication

Journal of the American Chemical Society

Source ISSN

0002-7863

Original Item ID

doi:10.1021/jacs.8b06727

Abstract

Zeolitic imidazolate frameworks (ZIFs) with open-shell transition metal nodes represent a promising class of highly ordered light harvesting antennas for photoenergy applications. However, their charge transport properties within the framework, the key criterion to achieve efficient photoenergy conversion, are not yet explored. Herein, we report the first direct evidence of a charge transport pathway through node-to-node communication in both ground state and excited state ZIFs using the combination of paramagnetic susceptibility measurements and time-resolved optical and X-ray absorption spectroscopy. These findings provide unprecedented new insights into the photoactivity and charge transport nature of ZIF frameworks, paving the way for their novel application as light harvesting arrays in diverse photoenergy conversion devices.

Comments

Accepted version. Journal of the American Chemical Society, Vol. 140, No. 37 (September 4, 2018): 11573-11576. DOI. © 2018 American Chemical Society. Used with permission.

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