Photoinduced Twisting of a Photochromic Diarylethene Crystal

Kitagawa, Daichi; Nishi, Hidetaka; Kobatake, Seiya

doi:10.1002/ange.201304670

Cited by 66 publications

(23 citation statements)

References 18 publications

(17 reference statements)

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“…Recently, reversible photoinduced twisting of molecular crystals has also been observed, in both 9-anthracenecarboxylic acid (Fig. 7b) and diarylethene 108,109 . Photoinduced molecular structure changes have also been observed in several coordination compounds, through linkage isomerization, and ligand isomerization mechanisms 9,28,110 .…”

Section: Change In Molecular Structurementioning

confidence: 93%

Dynamic molecular crystals with switchable physical properties

2016

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The development of molecular materials whose physical properties can be controlled by external stimuli - such as light, electric field, temperature, and pressure - has recently attracted much attention owing to their potential applications in molecular devices. There are a number of ways to alter the physical properties of crystalline materials. These include the modulation of the spin and redox states of the crystal's components, or the incorporation within the crystalline lattice of tunable molecules that exhibit stimuli-induced changes in their molecular structure. A switching behaviour can also be induced by changing the molecular orientation of the crystal's components, even in cases where the overall molecular structure is not affected. Controlling intermolecular interactions within a molecular material is also an effective tool to modulate its physical properties. This Review discusses recent advances in the development of such stimuli-responsive, switchable crystalline compounds - referred to here as dynamic molecular crystals - and suggests how different approaches can serve to prepare functional materials.

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Section: Change In Molecular Structurementioning

confidence: 93%

Dynamic molecular crystals with switchable physical properties

2016

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“…According to a manual beam-test, it was measured to be as large as 11GP, which was a much more outstanding performance compared with other organic materials [43]. Similarly, Kitagawa and co-workers designed another diarylethene crystal of 20 with the property of photo-induced twisting [44]. Upon irradiation of UV light (e.g.…”

Section: Applications As "Smart" Materials Exhibiting Mechanic Propermentioning

confidence: 99%

Recent advance of photochromic diarylethenes-containing supramolecular systems

Xiao

Zhao

Zhou

et al. 2015

Chinese Chemical Letters

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“…Katsonis and coworkers recently described impressive control over the helical motion of azobenzene-containing liquid-crystalline polymer springs, mimicking the extensile function of plant tendrils 184. Unlike previous reports of twisting motion within photomechanical crystalline systems, in which the helical deformations are dictated by the facets that are irradiated with UV or visible light, the handedness and modes of coiling motion can be preprogrammed by including chiral dopants and controlling the relative orientation of the aligned liquid crystals within each spring, respectively 185. …”

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confidence: 96%

Controlling Motion at the Nanoscale: Rise of the Molecular Machines

et al. 2015

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As our understanding and control of intra- and intermolecular interactions evolve, ever more complex molecular systems are synthesized and assembled that are capable of performing work or completing sophisticated tasks at the molecular scale. Commonly referred to as molecular machines, these dynamic systems comprise an astonishingly diverse class of motifs and are designed to respond to a plethora of actuation stimuli. In this Review, we outline the conditions that distinguish simple switches and rotors from machines and draw from a variety of fields to highlight some of the most exciting recent examples of opportunities for driven molecular mechanics. Emphasis is placed on the need for controllable and hierarchical assembly of these molecular components to display measurable effects at the micro-, meso-, and macroscales. As in Nature, this strategy will lead to dramatic amplification of the work performed via the collective action of many machines organized in linear chains, on functionalized surfaces, or in three-dimensional assemblies.

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Photoinduced Twisting of a Photochromic Diarylethene Crystal

Cited by 66 publications

References 18 publications

Dynamic molecular crystals with switchable physical properties

Dynamic molecular crystals with switchable physical properties

Recent advance of photochromic diarylethenes-containing supramolecular systems

Controlling Motion at the Nanoscale: Rise of the Molecular Machines

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