Journal
INORGANIC CHEMISTRY
Volume 57, Issue 2, Pages 849-856Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.7b02817
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Funding
- National Natural Science Foundation of China [21373142, 21531006]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- Project of Scientific and Technologic Infrastructure of Suzhou [SZS201708]
- Natural Science Foundation of Anhui Province [1708085MB27, KJ2016A879, KJ2017B004]
- Welch Foundation [A-0030]
- National Science Foundation Graduate Research Fellowship Program [DGE: 1252521]
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The observation of a reversible chemical transformation corresponding to an external stimulus in the solid state is intriguing in the exploration of smart materials, which can potentially be applied in molecular machines, molecular switches, sensors, and data storage devices. The solid-state photodimerization reaction of 1,3-bis[2-(4-pyridyl)ethenyl]benzene (1,3-bpeb) in a one-dimensional coordination polymer {[Cd-2(1,3-bpeb)(2)(4-FBA)4]center dot H2O}(n) (4-FBA = 4-fluorobenzoate) with 365 nm UV light afforded syn-tetrakis(4-pyridyl)-1,2,9,10-diethano[2.2]metacyclophane (syn-tpmcp) in quantitative yield via a single-crystal-to-single-crystal (SCSC) transformation. Upon irradiation with 254 nm UV light, an SCSC conversion from syn-tpmcp to 1,3-bpeb was also achieved in quantitative yield within the syn-tpmcp-supported coordination polymer {[Cd-2(syn-tpmcp)(4-FBA)4]center dot H2O}(n). In particular, accompanied by the reversible transformation between 1,3-bpeb and syn-tpmcp, the coordination chain exhibits photocontrollable fluorescence-switching behavior, which makes this intelligent material an appealing candidate for practical applications.
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