Dual-mode photoswitching of luminescence

Huck, Nina P. M.; Feringa, Ben L.

doi:10.1039/c39950001095

Cited by 74 publications

(56 citation statements)

References 6 publications

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“…[12,13,18,21] In an earlier communication [13a] we have already reported the photochemical properties of some dithienylethene-tungsten complexes, we herein describe the synthesis and characterization of the novel diarylethene based molecular switches 1 ± 4 (see Scheme 1) bearing metal ion complexes of tungsten, rhenium, and ruthenium as well as their photochromic properties.…”

Section: Introductionmentioning

confidence: 99%

Optical Switching and Fluorescence Modulation Properties of Photochromic Metal Complexes Derived from Dithienylethene Ligands

1999

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Organic photochromic systems represent a starting point for the preparation of light-triggered molecular switching devices. The novel dithienylethene-tungsten (1,2), rhenium (3,4), and ruthenium (5) complexes were synthesized from their parent ligands. The biscyano photochromic complexes 14 and 16 were also prepared although their metallic complexes could not be isolated. All the compounds described exhibited pronounced photochromic proper- forms when excited at wavelengths (240 nm) that almost did not affect the state of the system. Finally the closed form of product 5, prepared from the closed form of its parent ligand, was photochemically stable. Thus, the molecules 1 ± 5 represent two kinds of nondestructive read-out models.

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Section: Introductionmentioning

confidence: 99%

Optical Switching and Fluorescence Modulation Properties of Photochromic Metal Complexes Derived from Dithienylethene Ligands

1999

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“…22 Compound 2 shows dual-mode switching behavior as we can reach the on mode (switching) and off mode (no switching) simply by deprotonation or protonation. It also exhibits gated response behavior with proton-dependent photomodulation of molecular chirality and fluorescence with the possibility to address three distinct states: on, dimmed, and off ( Figure 5).…”

Section: Switching Of Luminescencementioning

confidence: 99%

The Art of Building Small: From Molecular Switches to Molecular Motors

2007

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Molecular switches and motors are essential components of artificial molecular machines. In this perspective, we discuss progress in our design, synthesis, and functioning of photochemical and electrochemical switches and chemical and light-driven molecular motors. Special emphasis is given to the control of a range of functions and properties, including luminescence, self-assembly, motion, color, conductance, transport, and chirality. We will also discuss our efforts to control mechanical movement at the molecular level, a feature that is at the heart of molecular motors and machines. The anchoring of molecular motors on surfaces and molecular motors at work are discussed.

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“…Related chiral photochromic molecules [28] were shown to display different fluorescence emission spectra which are regulated by reversible protonation. It is another case of gated photochromism (see definition).…”

Section: H Bouas-laurent and Heinz Dürrmentioning

confidence: 99%

Organic photochromism (IUPAC Technical Report)

Bouas‐Laurent

Dürr

2001

Pure and Applied Chemistry

864

578

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Republication or reproduction of this report or its storage and/or dissemination by electronic means is permitted without theAbstract: This technical report is a general introduction to organic photochromism. The definition of photochromism (PC) is given together with that of words with the ending "chromism", such as thermo-, electro-, piezo-, and tribochromism. Important concepts such as two-photon, gated, dual-mode PC and chirochromism are illustrated. The concept of fatigue (chemical degradation) and the determination of the main photochromic parameters (number of cycles, cyclability, half-life), and the spectrokinetic and mechanistic aspects are discussed. The main families of PC (organic compounds and biological receptors) are illustrated with chemical formulae, and the different types of reactions involved in the photochromic processes (pericyclic reactions, E/Z isomerization, group transfer, etc.) are listed. Some examples of applications to "optical power limiting" substances, photoresponsive materials, and photoswitchable biomaterials are considered.

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Dual-mode photoswitching of luminescence

Cited by 74 publications

References 6 publications

Optical Switching and Fluorescence Modulation Properties of Photochromic Metal Complexes Derived from Dithienylethene Ligands

Optical Switching and Fluorescence Modulation Properties of Photochromic Metal Complexes Derived from Dithienylethene Ligands

The Art of Building Small: From Molecular Switches to Molecular Motors

Organic photochromism (IUPAC Technical Report)

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