Premium
A Macrocycle/Molecular‐Clip Complex that Functions as a Quadruply Controllable Molecular Switch
Author(s) -
Chiang PinnTsong,
Cheng PinNan,
Lin ChiFeng,
Liu YiHung,
Lai ChienChen,
Peng ShieMing,
Chiu ShengHsien
Publication year - 2006
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200500676
Subject(s) - molecular switch , supramolecular chemistry , molecular motor , molecular machine , molecular electronics , chemistry , molecular dynamics , naked eye , rotaxane , molecular recognition , molecular wire , molecule , crystallography , stereochemistry , materials science , nanotechnology , crystal structure , computational chemistry , organic chemistry , chromatography , detection limit
Herein, we report the synthesis of a molecular clip with TTF side‐walls and its binding behavior towards electron‐deficient guests, namely the formation of macrocycle/molecular‐clip supramolecular complexes in solution. Four different sets of external stimuli—the K + /[2.2.2]cryptand, NH 4 + /Et 3 N and ( p ‐BrPh) 3 NSbCl 6 /Zn pairs, and heating/cooling cycles—control the movement of this molecular switch between its threaded and unthreaded states and provide color changes that are observable by the naked eye. This macrocycle/molecular‐clip complex system can be considered not only as a quadruple‐use molecular switch, but can also be operated by three of these stimuli as a three‐input molecular NOR‐functioning logic gate that may be monitored by UV‐visible spectroscopy.