Nanoscale, Journal Year: 2024, Volume and Issue: 16(9), P. 4778 - 4786
Published: Jan. 1, 2024
It is highly challenging to control (stop and resume as needed) molecular rotors because their intramolecular rotations are electronically enabled by delocalized σ bonding, the desired needs be able destroy restore such which usually means difficult chemical manipulation (substitution or doping atom). In this work, we report CBe
Language: Английский
Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(33), P. 23387 - 23397
Published: Aug. 7, 2024
Molecular motors are central driving units for nanomachinery, and control of their directional motions is fundamental importance functions. Light-driven variants use easy to provide, dose, waste-free fuel with high energy content, making them particularly interesting applications. Typically, light-driven molecular work via rotations around dedicated chemical bonds where the directionality rotation dictated by steric effects asymmetry in close vicinity axis. In this work, we show how unidirectional a virtual axis can be realized reprogramming motor. To end, classical motor restricted macrocyclization, its intrinsic transformed into macrocyclic chain opposite direction. Further, solvent polarity changes allow toggle function machine between nondirectional photoswitch. way, new concept design delivered together elaborate over functions simple changes. The possibility sensing environmental correspondingly adjusting opens up next level responsiveness nanoscopic motors.
Language: Английский
Citations
5
Nature Synthesis, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 5, 2024
Language: Английский
Citations
5
Nanoscale, Journal Year: 2023, Volume and Issue: 15(46), P. 18550 - 18570
Published: Jan. 1, 2023
This review provides inspiration and promotes the clinical application of light-driven micro/nanomotors in biomedical field.
Language: Английский
Citations
12
Journal of the American Chemical Society, Journal Year: 2023, Volume and Issue: 145(33), P. 18402 - 18413
Published: Aug. 14, 2023
Organic trisradicals featuring threefold symmetry have attracted significant interest because of their unique magnetic properties associated with spin frustration. Herein, we describe the synthesis and characterization a triangular prism-shaped organic cage for which coined name PrismCage6+ its trisradical trication─TR3(•+). is composed three 4,4'-bipyridinium dications two 1,3,5-phenylene units bridged by six methylene groups. In solid state, adopts highly twisted conformation close to C3 as result encapsulating one PF6- anion guest. undergoes stepwise reduction mono-, di-, cations in MeCN on account strong electronic communication between units. TR3(•+), obtained employing CoCp2, C2v state. Temperature-dependent continuous-wave nutation-frequency-selective electron paramagnetic resonance spectra TR3(•+) frozen N,N-dimethylformamide indicate doublet ground The doublet-quartet energy gap estimated be -0.08 kcal mol-1, critical temperature spin-state conversion found ca. 50 K, suggesting that it displays pronounced frustration at molecular level. To best our knowledge, this example first radical exhibit trication opens up new possibilities fundamental investigations potential applications fields both cages chemistry.
Language: Английский
Citations
11
Nanoscale, Journal Year: 2024, Volume and Issue: 16(9), P. 4778 - 4786
Published: Jan. 1, 2024
It is highly challenging to control (stop and resume as needed) molecular rotors because their intramolecular rotations are electronically enabled by delocalized σ bonding, the desired needs be able destroy restore such which usually means difficult chemical manipulation (substitution or doping atom). In this work, we report CBe
Language: Английский
Citations
4