Unidirectional Photoinduced Shuttling in a Rotaxane with a Symmetric Stilbene Dumbbell

Stanier, Carol A.; Alderman, Sara J.; Claridge, Tim D. W.; Anderson, Harry L.

doi:10.1002/1521-3773(20020517)41:10<1769::aid-anie1769>3.0.co;2-n

Cited by 230 publications

(74 citation statements)

References 39 publications

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“…The photoisomerization about a -C=C-bond is at the basis of a very interesting class of molecular rotary motors based on sterically hindered alkenes [19,65,66]. Molecular shuttles relying on the photoisomerization of azobenzene or stilbene units have also been reported [67][68][69][70].…”

Section: Pseudorotaxane Threading-dethreading Based On Cis-trans Photmentioning

confidence: 99%

Molecular machines operated by light

Venturi

2008

Open Chemistry

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Abstract:The bottom-up construction and operation of machines and motors of molecular size is a topic of great interest in nanoscience, and a fascinating challenge of nanotechnology. Researchers in this field are stimulated and inspired by the outstanding progress of molecular biology that has begun to reveal the secrets of the natural nanomachines which constitute the material base of life. Like their macroscopic counterparts, nanoscale machines need energy to operate. Most molecular motors of the biological world are fueled by chemical reactions, but research in the last fifteen years has demonstrated that light energy can be used to power nanomachines by exploiting photochemical processes in appropriately designed artificial systems. As a matter of fact, light excitation exhibits several advantages with regard to the operation of the machine, and can also be used to monitor its state through spectroscopic methods. In this review we will illustrate the design principles at the basis of photochemically driven molecular machines, and we will describe a few examples based on rotaxane-type structures investigated in our laboratories. © Versita Warsaw and Springer-Verlag Berlin

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Section: Pseudorotaxane Threading-dethreading Based On Cis-trans Photmentioning

confidence: 99%

Molecular machines operated by light

Venturi

2008

Open Chemistry

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“…This high degree of organization lays the foundations for the production of molecular machinery [251][252][253][254][255][256][257][258][259]. In particular, with the addition of more than one templating unit, a property of higher order emerges -motion [78,260].…”

Section: Templating the Future Of Technologymentioning

confidence: 99%

Templated Synthesis of Interlocked Molecules

Aricò

Badjić

Cantrill

et al. 2005

Topics in Current Chemistry

194

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“…CDs have attracted widespread interest for building supramolecular structures, and their derivatives have evolved into a versatile class of host molecules with applications in enzyme mimics, molecular recognition, drug delivery and chiral discrimination [1][2][3][4] , etc.…”

Section: Introductionmentioning

confidence: 99%

Convenient Preparation of Mono-2 or Mono-3-O-benzoyl-β-cyclodextrin Dependent the Solvent Equilibrium

Wang¹

2012

Chem Sci Trans

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Abstract:A new and convenient method is presented for the preparation of mono-2 or mono-3-Obenzoyl-β-cyclodextrin by direct benzoylation of β-cyclodextrin on the secondary hydroxyl face using N-benzoylimidazole in carbonate buffer solution. These processes involved the solvent-dependent equilibriums of isomerization to improve the yields. Among the common solvents (N,N-dimethylformamide, dimethyl sulfoxide, and H 2 O), dimethyl sulfoxide is the most advantageous for preparing mono-2-O-benzoyl-β-cyclodextrin, and H 2 O is the most advantageous for preparing mono-3-O-benzoyl-β-cyclodextrin.

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Unidirectional Photoinduced Shuttling in a Rotaxane with a Symmetric Stilbene Dumbbell

Abstract: Up and down the dumbbell: Photoisomerization of a stilbene rotaxane results in relocation of the cyclodextrin macrocycle in just one direction (see scheme). This behavior, and that of related rotaxanes, sheds light on the mechanism of shuttling in molecular machines.

Cited by 230 publications

References 39 publications

Molecular machines operated by light

Molecular machines operated by light

Templated Synthesis of Interlocked Molecules

Convenient Preparation of Mono-2 or Mono-3-O-benzoyl-β-cyclodextrin Dependent the Solvent Equilibrium

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