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- Publisher Website: 10.1021/acs.jpca.5b04570
- Scopus: eid_2-s2.0-84934927106
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Article: Visible Light-Driven Artificial Molecular Switch Actuated by Radical-Radical and Donor-Acceptor Interactions
Title | Visible Light-Driven Artificial Molecular Switch Actuated by Radical-Radical and Donor-Acceptor Interactions |
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Authors | |
Issue Date | 2015 |
Citation | Journal of Physical Chemistry A, 2015, v. 119, n. 24, p. 6317-6325 How to Cite? |
Abstract | We describe a visible light-driven switchable [2]catenane, composed of a Ru(bpy) |
Persistent Identifier | http://hdl.handle.net/10722/333126 |
ISSN | 2021 Impact Factor: 2.944 2020 SCImago Journal Rankings: 0.756 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Sun, Junling | - |
dc.contributor.author | Wu, Yilei | - |
dc.contributor.author | Liu, Zhichang | - |
dc.contributor.author | Cao, Dennis | - |
dc.contributor.author | Wang, Yuping | - |
dc.contributor.author | Cheng, Chuyang | - |
dc.contributor.author | Chen, Dongyang | - |
dc.contributor.author | Wasielewski, Michael R. | - |
dc.contributor.author | Stoddart, J. Fraser | - |
dc.date.accessioned | 2023-10-06T05:16:55Z | - |
dc.date.available | 2023-10-06T05:16:55Z | - |
dc.date.issued | 2015 | - |
dc.identifier.citation | Journal of Physical Chemistry A, 2015, v. 119, n. 24, p. 6317-6325 | - |
dc.identifier.issn | 1089-5639 | - |
dc.identifier.uri | http://hdl.handle.net/10722/333126 | - |
dc.description.abstract | We describe a visible light-driven switchable [2]catenane, composed of a Ru(bpy)<inf>3</inf><sup>2+</sup> tethered cyclobis(paraquat-p-phenylene) (CBPQT<sup>4+</sup>) ring that is interlocked mechanically with a macrocyclic polyether consisting of electron-rich 1,5-dioxynaphthalene (DNP) and electron-deficient 4,4′-bipyridinium (BIPY<sup>2+</sup>) units. In the oxidized state, the CBPQT<sup>4+</sup> ring encircles the DNP recognition site as a consequence of favorable donor-acceptor interactions. In the presence of an excess of triethanolamine (TEOA), visible light irradiation reduces the BIPY<sup>2+</sup> units to BIPY<sup>(•+)</sup> radical cations under the influence of the photosensitizer Ru(bpy)<inf>3</inf><sup>2+</sup>, resulting in the movement of the CBPQT<sup>2(•+)</sup> ring from the DNP to the BIPY<sup>(•+)</sup> recognition site as a consequence of the formation of the more energetically favorable trisradical complex, BIPY<sup>(•+)</sup> CBPQT<sup>2(•+)</sup>. Upon introducing O<inf>2</inf> in the dark, the BIPY<sup>(•+)</sup> radical cations are oxidized back to BIPY<sup>2+</sup> dications, leading to the reinstatement of the CBPQT<sup>4+</sup> ring encircled around the DNP recognition site. Employing this strategy of redox control, we have demonstrated a prototypical molecular switch that can be manipulated photochemically and chemically by sequential reduction and oxidation. | - |
dc.language | eng | - |
dc.relation.ispartof | Journal of Physical Chemistry A | - |
dc.title | Visible Light-Driven Artificial Molecular Switch Actuated by Radical-Radical and Donor-Acceptor Interactions | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1021/acs.jpca.5b04570 | - |
dc.identifier.scopus | eid_2-s2.0-84934927106 | - |
dc.identifier.volume | 119 | - |
dc.identifier.issue | 24 | - |
dc.identifier.spage | 6317 | - |
dc.identifier.epage | 6325 | - |
dc.identifier.eissn | 1520-5215 | - |
dc.identifier.isi | WOS:000356753600019 | - |