Javascript must be enabled to continue!
Semi-Empirical Study of a pH-Switchable [2] Rotaxane
View through CrossRef
AbstractSemi-empirical (AM1) electronic structure calculations are reported on a pH-switchable [2] rotaxane whose synthesis was reported in [Angew. Chem. Int. Ed, 36 (1997) 1904] . The [2] rotaxane possesses two cationic binding sites, with different affinities toward dibenzo [24] crown-8 (the ring component of the [2] rotaxane) depending upon the pH of the system. The computational results capture this pH-sensitive bistability, the key device-like characteristic of the rotaxane.
Title: Semi-Empirical Study of a pH-Switchable [2] Rotaxane
Description:
AbstractSemi-empirical (AM1) electronic structure calculations are reported on a pH-switchable [2] rotaxane whose synthesis was reported in [Angew.
Chem.
Int.
Ed, 36 (1997) 1904] .
The [2] rotaxane possesses two cationic binding sites, with different affinities toward dibenzo [24] crown-8 (the ring component of the [2] rotaxane) depending upon the pH of the system.
The computational results capture this pH-sensitive bistability, the key device-like characteristic of the rotaxane.
Related Results
Development of models for predicting the properties of switchable mechanically interlocked molecular architectures
Development of models for predicting the properties of switchable mechanically interlocked molecular architectures
Mechanically interlocked molecular architectures (MIMAs) are supramolecular assemblies that are made up of non-bonded (mechanically linked) molecular components. Switchable rotaxan...
The effect of permodified cyclodextrins encapsulation on the photophysical properties of a polyfluorene with randomly distributed electron-donor and rotaxane electron-acceptor units
The effect of permodified cyclodextrins encapsulation on the photophysical properties of a polyfluorene with randomly distributed electron-donor and rotaxane electron-acceptor units
We report on the synthesis as well as the optical, electrochemical and morphological properties of two polyrotaxanes (4a and 4b), which consist of electron-accepting 9,9-dicyanomet...
Synthesis and characterization of new phenanthrolinetriether copolymers with rotaxane architecture
Synthesis and characterization of new phenanthrolinetriether copolymers with rotaxane architecture
AbstractThis paper is devoted to the preparation and characterization of new phenanthroline-triether copolymers with rotaxane architecture by reaction of complexes of α- or β- cycl...
Study on the ASP Switchable Surfactant for Daqing Oilfield
Study on the ASP Switchable Surfactant for Daqing Oilfield
Abstract
During the past 20 years, alkali-surfactant-polymer (ASP) chemical combination flooding has become a successful EOR technique for the mature reservoirs with...
Laser desorption vs. electrospray of polyyne-threaded rotaxanes: Preventing covalent cross-linking and promoting noncovalent aggregation
Laser desorption vs. electrospray of polyyne-threaded rotaxanes: Preventing covalent cross-linking and promoting noncovalent aggregation
Laser-induced cross-linking of polyynes is successfully hindered when the polyyne is encapsulated as part of a rotaxane and therefore protected by a surrounding macrocycle. When th...
CO2 Storage Efficiency Improvement Using Interfacially Switchable Surfactant: A Two-Stage Capillary Flip for Greater Residual Trapping
CO2 Storage Efficiency Improvement Using Interfacially Switchable Surfactant: A Two-Stage Capillary Flip for Greater Residual Trapping
Abstract
Saline aquifers are among the promising options for large-scale CO2 sequestration, but their storage efficiency is typically limited to ~5% due to physical ...
Five-component, one-pot synthesis of an electroactive rotaxane comprising a bisferrocene macrocycle
Five-component, one-pot synthesis of an electroactive rotaxane comprising a bisferrocene macrocycle
The templated clipping of a ferrocene-grafted isophthalic acid derivative to encircle a hydrogen-bonding axle through the reaction with 1,4-bis(aminomethyl)benzene is described. Th...
Laboratory Study on Switchable Alkylamidine Surfactant for Daqing Oilfield
Laboratory Study on Switchable Alkylamidine Surfactant for Daqing Oilfield
Surfactants are used in a variety of emulsion-based applications. Usually, stabilization of emulsion is only required temporarily. In the case of crude oil displacement from reserv...

