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Configurable photochromism of an unsymmetrical dithienylethene derivative by Cu2+ ions or water
KTH, School of Biotechnology (BIO), Theoretical Chemistry and Biology.ORCID iD: 0000-0001-6508-8355
KTH, School of Biotechnology (BIO), Theoretical Chemistry and Biology.ORCID iD: 0000-0002-1763-9383
2014 (English)In: Dyes and pigments, ISSN 0143-7208, E-ISSN 1873-3743, Vol. 111, 1-7 p.Article in journal (Refereed) Published
Abstract [en]

We describe a gated photochromic behavior of an unsymmetrical dithienylethene derivative, which is intrinsically inert to photoisomerization in organic solvents and which is activated by addition of Cu2+ ions or water. The mechanism behind the gated photochromic property is interpreted by theoretical simulations, suggesting that the energy levels of frontier molecular orbitals are altered by the interaction of the Schiff base moiety with Cu2+ ions or water molecules. Potential applications of such gated photochromic materials have been exemplified not only by the reversible interchange between the photoactive and photoinactive states triggered by Cu2+ ions and EDTA, but also by the construction of a keypad with sequence-dependent input signals at the molecular level.

Place, publisher, year, edition, pages
2014. Vol. 111, 1-7 p.
Keyword [en]
Gated photochromism, Diarylethenes, Schiff base, Coordination, Theoretical simulations, Molecular keypad
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-151321DOI: 10.1016/j.dyepig.2014.05.027ISI: 000340976400001Scopus ID: 2-s2.0-84902214304OAI: oai:DiVA.org:kth-151321DiVA: diva2:748028
Funder
Carl Tryggers foundation
Note

QC 20140918

Available from: 2014-09-18 Created: 2014-09-18 Last updated: 2017-12-05Bibliographically approved

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Li, XinÅgren, Hans

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