Bulkiness effect dependent photosalient behaviours of photoactive cadmium coordination polymers
Three structurally related cadmium coordination polymers CP1-CP3 {[Cd<sub>3</sub>(Pebpeb)<sub>2</sub>(L<sub>1</sub>)<sub>6</sub>] (CP1), [Cd<sub>3</sub>(Pebpeb)<sub>2</sub>(L<sub>2</sub>)<sub>6</sub>] (CP2) and [Cd<sub>6</sub>(Pebpeb)<sub>4</sub>(L<sub>3</sub>)<sub>12</sub>]·HL<sub>3</sub> (CP3)} were constructed from the photoactive alkene ligand Pebpeb (Pebpeb = 4,4'-((1<i>E</i>,1'<i>E</i>)-(5-(pyridin-3-ylethynyl)-1,3-phenylene)bis(ethene-2,1-diyl))dipyridine; HL<sub>1</sub> = 3-chlorobenzoic acid; HL<sub>2</sub> = 3-nitrobenzoic acid; HL<sub>3</sub> = 3-isopropyl benzoic acid) and Cd(II) ions in the presence of different auxiliary carboxylic acids. Different conformations of the functional olefinic ligand Pebpeb were observed in CP1-CP3 despite their similar 1D chain motif. [2 + 2] Solid-state photodimerization occurred when crystals of CP1-CP3 were irradiated with UV light (365 nm) and each displayed different photosalient (PS) responses attributed to the different bulkiness of the auxiliary carboxylic acids employed. A simple photoactuating device was prepared using a CP1-PVA (PVA = Polyvinyl Alcohol) composite.
Authors
- David James Young (ORCID: https://orcid.org/0000-0002-6079-5904)
- Qing-Shu Dong
- Fei-Long Hu (ORCID: https://orcid.org/0000-0002-4734-3364)
- Yan Mi (ORCID: https://orcid.org/0000-0002-2497-5342)
- Ning Wang (ORCID: https://orcid.org/0000-0002-3139-903X)
Institutions
- University of Electronic Science and Technology of China (CN)
- State Ethnic Affairs Commission (CN)
Publication Details
- Journal
- Dalton Transactions
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5dt00208g
- Primary Topic
- Metal-Organic Frameworks: Synthesis and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Natural Science Foundation of Guangxi Province