Fluorescence switching with subphthalocyanine-dihydroazulene dyads. Issue 1 (21st January 2019)
- Record Type:
- Journal Article
- Title:
- Fluorescence switching with subphthalocyanine-dihydroazulene dyads. Issue 1 (21st January 2019)
- Main Title:
- Fluorescence switching with subphthalocyanine-dihydroazulene dyads
- Authors:
- Gotfredsen, Henrik
Kilde, Martin Drøhse
Santella, Marco
Kadziola, Anders
Nielsen, Mogens Brøndsted - Abstract:
- Abstract : The boron subphthalocyanine (SubPc) fluorescence is reversibly modulated by photoisomerization of a covalently attached dihydroazulene (DHA) photoswitch into a vinylheptafulvene (VHF). Abstract : One convenient way of reversibly modulating the emission properties of a fluorophore is by introducing a photochromic unit that upon irradiation is converted into an isomeric unit that can quench the fluorescence of the fluorophore. Here we present the synthesis of two dyads containing a boron subphthalocyanine (SubPc) fluorophore and the dihydroazulene (DHA) photoswitch. Upon photoisomerization, the DHA unit is converted to a vinylheptafulvene (VHF) unit that was found to efficiently quench the SubPc fluorescence when placed at the axial boron position of the SubPc. The original fluorescence was restored by thermal conversion of the VHF to DHA. Fluorescence was thereby turned off and on by successive light-heat cycles. The other dyad has the DHA unit placed at the periphery of the SubPc, and this dyad showed instead limited photostability.
- Is Part Of:
- Molecular Systems Design and Engineering. Volume 4:Issue 1(2019)
- Journal:
- Molecular Systems Design and Engineering
- Issue:
- Volume 4:Issue 1(2019)
- Issue Display:
- Volume 4, Issue 1 (2019)
- Year:
- 2019
- Volume:
- 4
- Issue:
- 1
- Issue Sort Value:
- 2019-0004-0001-0000
- Page Start:
- 199
- Page End:
- 205
- Publication Date:
- 2019-01-21
- Subjects:
- Chemistry -- Molecular aspects -- Periodicals
Chemical engineering -- Molecular aspects -- Periodicals
Nanotechnology -- Periodicals
620.5 - Journal URLs:
- http://pubs.rsc.org/en/journals/journalissues/me#!recentarticles&adv ↗
http://www.rsc.org/ ↗ - DOI:
- 10.1039/c8me00075a ↗
- Languages:
- English
- ISSNs:
- 2058-9689
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 5900.856400
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 9500.xml