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Synthesis of a pH-Sensitive Hetero[4]Rotaxane Molecular Machine that Combines [c2]Daisy and [2]Rotaxane Arrangements
被引:34
|作者:
Waeles, Philip
[1
]
Riss-Yaw, Benjamin
[1
]
Coutrot, Frederic
[1
]
机构:
[1] Univ Montpellier, Supramol Machines & ARchitectures Team, IBMM UMR CNRS 5247, ENSCM,Fac Sci, Case Courrier 1706,Batiment Chim 17,3eme Etage, F-34095 Montpellier 5, France
关键词:
daisy chain;
molecular devices;
biomimetic synthesis;
rotaxanes;
template synthesis;
SUPRAMOLECULAR DAISY CHAINS;
LINEAR ROTAXANE DIMER;
1.3-DIPOLARE CYCLOADDITIONEN;
MUSCLES;
CONSTRUCTION;
SYSTEMS;
CONTRACTION;
MACROCYCLE;
STRATEGY;
KINETIK;
D O I:
10.1002/chem.201600453
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
The synthesis of a novel pH-sensitive hetero[4]rotaxane molecular machine through a self-sorting strategy is reported. The original tetra-interlocked molecular architecture combines a [c2]daisy chain scaffold linked to two [2]rotaxane units. Actuation of the system through pH variation is possible thanks to the specific interactions of the dibenzo-24-crown-8 (DB24C8) macrocycles for ammonium, anilinium, and triazolium molecular stations. Selective deprotonation of the anilinium moieties triggers shuttling of the unsubstituted DB24C8 along the [2]rotaxane units.
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页码:6837 / 6845
页数:9
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