Formation of a [2]pseudorotaxane based on a pillar[5]arene and a rigid guest in solution and in the solid state.
نویسندگان
چکیده
A pillar[5]arene with mono(ethylene oxide) substituents could form a highly stable [2]pseudorotaxane with a rigid guest both in solution and in the solid state.
منابع مشابه
Formation of a pillar[5]arene-based [3]pseudorotaxane in solution and in the solid state.
It was demonstrated that a novel [3]pseudorotaxane could be separated by column chromatography during the synthesis of a copillar[5]arene. Single crystal X-ray analysis revealed that this [3]pseudorotaxane consisted of the copillar[5]arene and its monomer in a molar ratio of 2 : 1.
متن کاملA pillar[6]arene-based [2]pseudorotaxane in solution and in the solid state and its photo-responsive self-assembly behavior in solution.
A pillar[6]arene-based [2]pseudorotaxane was constructed in solution and studied in the solid state, and its photo-responsive self-assembly behavior in solution was investigated.
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The formation constants (log K), of the complexes formed between a number of amino acids(glycine , L-valine and L-alanine) with p-sulfonatocalix [4] arene at varying temperatures (25± 0.1to 65 ± 0.1 °C) in aqueous solutions and at natural pH of p-sulphonato-calix [4] arene (pH=3.2) bymeans of UV-Vis spectrophotometeric technique have been investigated. At this pH the guestmolecule is in its cat...
متن کاملA hybrid porous material from a pillar[5]arene and a poly(ionic liquid): selective adsorption of n-alkylene diols.
A macro-/mesoporous polymeric network with densely incorporated pillar[5]arene functionality was prepared via ionic complexation between a polymerized ionic liquid and carboxylated pillar[5]arene. It retained the solution-state host-guest property of the pillar[5]arene and was successfully applied as a selective absorbent for n-alklyene diols.
متن کاملPhotoreversible switching of the lower critical solution temperature in a photoresponsive host-guest system of pillar[6]arene with triethylene oxide substituents and an azobenzene derivative.
A new water-soluble thermoresponsive pillar[6]arene with triethylene oxide groups was synthesized. The pillar[6]arene showed lower critical solution temperature behavior in aqueous solution. Its clouding point was photoreversibly switched based on a photoresponsive host-guest system. The trans form of an azobenzene guest formed a stable 1:1 complex with the pillar[6]arene. Complexation increase...
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ورودعنوان ژورنال:
- Chemical communications
دوره 50 72 شماره
صفحات -
تاریخ انتشار 2014