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In another rotaxane system with a CB[7] wheel, the axle is a 4,4'-bipyridinium or viologen subunit with two carboxylic acid terminated aliphatic N-substituents at both ends. In water at concentration higher than 0.5 mM complexation is quantitative without need of stoppers.
This snap-top stopper system uses mesoporous silica nanoparticles as a drug carrier. Pore openings are tethered with [2] rotaxane and α-cyclodextrin (α-CD) encircles the glycol group, blocking the opening of the pores. The figure illustrates the system with an esterase-sensitive stopper.
Aug 31, 2023 · In the 1 H NMR spectra of the resultant macromonomers MGn (n = 1, 2, 3), the proton signal attributed to the terminal alkyne moiety of 2 disappeared, and the signals ascribed to the olefinic ...
This review sorts the major research work into a multi-level pyramid structure and presents the challenges of [2]rotaxane's application to molecular electronics at three levels in developing molecular circuits and systems. First, we investigate [2]rotaxane's electrical characteristics with different driving methods and discuss the design ...
Television. Flat-screen television receivers on display for sale at a consumer electronics store in 2008. Television ( TV) is a telecommunication medium for transmitting moving images and sound. Additionally, the term can refer to a physical television set, rather than the medium of transmission.
Jul 29, 2018 · Rotaxane and Polyrotaxane.png 653 × 484; 128 KB Rotaxane cartoon.jpg 361 × 242; 47 KB Rotaxane Crystal Structure ChemComm page493 2001 commons.jpg 926 × 567; 220 KB
로탁세인. 로탁세인의 구조. 사이클로비스 (파라콰트- p -페닐렌) ( en) 거대고리 를 가진 로탁세인. 로탁세인 (rotaxane)은 아령 모양의 분자와 거대고리 (macrocycle)이 맞물린 기계적으로 맞물린 분자 구조 (mechanically interlocked molecular architecture)이다.
