Results 71 to 80 of about 1,333 (175)

Cyclodextrin-based rotaxanes for polymer materials: challenge on simultaneous realization of inexpensive production and defined structures

Beilstein Journal of Organic Chemistry
Owing to their dynamic natures, rotaxane-based polymers are attractive motifs for developing stimuli-responsive materials. However, the accurate control of the rotaxane structure, which can be achieved via multistep synthesis, is key to utilizing the ...
Yosuke Akae
doaj   +1 more source

Substitution effect and effect of axle’s flexibility at (pseudo-)rotaxanes

Beilstein Journal of Organic Chemistry, 2014
This study investigates the effect of substitution with different functional groups and of molecular flexibility by changing within the axle from a single C–C bond to a double C=C bond.
Friedrich Malberg, Jan Gerit Brandenburg, Werner Reckien, Oldamur Hollóczki, Stefan Grimme, Barbara Kirchner   +5 more
doaj   +1 more source

Artificial molecular-level machines with [Ru(bpy)3]2+ as a “light-fueled motor”

International Journal of Photoenergy, 2001
A molecular-level machine is an assembly of a discrete number of molecular components (that is, a supramolecular structure) designed to perform mechanical-like movements (output) as a consequence of appropriate external stimuli (input).
Roberto Ballardini, Vincenzo Balzani, Alberto Credi, Maria Teresa Gandolfi, Margherita Venturi   +4 more
doaj   +1 more source

Azobenzene DNA Intercalator/Cyclodextrin Pseudo‐Rotaxane: From Photoswitchable Chirality and Fluorescence to DNA Melting Control

ChemistryOpen
Pseudo‐rotaxanes are reversibly interlocked molecules with at least one linear molecule threaded into a macrocycle and, contrary to rotaxanes, an advantageous ability to be dissociated.
Olivier Abodja, Astrid Walrant, Sergii Rudiuk, Mathieu Morel, Damien Baigl   +4 more
doaj   +1 more source

Boosting the circularly polarized luminescence of pyrene-tiaraed pillararenes through mechanically locking

Nature Communications
Attributed to their unique dynamic planar chirality, pillar[n]arenes, particularly pillar[5]arenes, have evolved as promising platforms for diverse applications such as circularly polarized luminescence (CPL) emitters.
Jing-Lin Song, Chao Chen, Xue Li, Yefei Jiang, Zhiyong Peng, Xu-Qing Wang, Hai-Bo Yang, Wei Wang   +7 more
doaj   +1 more source

Nomenclature for Rotaxanes, Catenanes, and Macromolecular Rotaxanes [PDF]

Chemistry International -- Newsmagazine for IUPAC, 2002
openaire   +1 more source

Postsynthetic Modifications of Amide‐Enaminone‐Based [2]Rotaxanes for the Stereocontrolled Synthesis of Functionalized β‐Lactams

ChemistryEurope
Novel amido‐enaminone threads serve as efficient templates for the assembly of hydrogen‐bonded [2]rotaxanes, enabling versatile postsynthetic modifications.
Syed S. Razi, Isabel M. Perez‐Artigao, Mateo Alajarin, Alberto Martinez‐Cuezva, Jose Berna   +4 more
doaj   +1 more source

Polyyne rotaxanes

, 2014
This thesis describes the synthesis of polyyne rotaxanes and an investigation of their excited state photophysical properties. The threading of dumbbell-shaped carbon chains with macrocyclic components is a way to mechanically insulate and control the environment around the carbon chains. The resulting polyyne rotaxanes can serve as model compounds for
openaire   +2 more sources

BODIPY-directed dynamic covalent templating of carbon nanohoop rotaxanes with near-unity Förster resonance energy transfer. [PDF]

Chem Sci
Guo S, Wu S, Fan YQ, Zhang LP, Lian Z, Li X, Wang Y, Jiang H.   +7 more
europepmc   +1 more source

Inverted metal-free active template synthesis of rotaxanes via axle‑mediated macrocyclization. [PDF]

Nat Chem
Zhong J, Troncossi A, Olivieri E, Cramp E, Gao C, Zwick P, Whitehead GFS, Leigh DA.   +7 more
europepmc   +1 more source