English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Metal-directed self assembly process provides the formation of unique discrete superstructures including molecular triangles, squares, helicates, catenanes, and cages and some of as-assembled structures exist under dynamic equilibrium of coordination bond betweem metal ion and ligand. This reversibility is one of the interesting features in self assembly process, which not only allows spontaneous and selective formation of a distinct supramolecular structure, but also affords facile routes for interconversion favoring formation of the thermodynamically more stable structures. Thus, dynamic interconversion of assembled structures could be controlled by reaction conditions such as concentrations, temperatures, and solvents, which are recently regarded as one of the interesting properties in developing functional materials. In this paper, we report the formation of a highly stable kinetic receptor in water solvent and its slow conversion into a thermodynamic product. Activation energy barrier in thermodynamic conversion of kinetic receptor is closely related to the solvent system stabilizing complex structure of the activated state and is remarkably high in D2O solvent. We previously reported the structural properties of the resorcinarene-based receptor Pd-intra, which formed an intramolecular complex with (en)Pd(NO3)2, as shown in Scheme 1. A solution of Pd-intra in D2O was heated to 75 C and maintained at this temperature for a considerable period of time; this was monitored at regular intervals of time by room-temperature H-NMR. The time-dependent H NMR spectra of Pd-intra in D2O showed changes in peaks in the aromatic region; with time, the original peaks corresponding to Pd-intra gradually diminished, while signals attributable to a new component appeared (Figure 1). After approximately 152 h, Pd-intra was converted into a new com-

Kinetically Trapped Receptor and its Thermodynamic Conversion During Metal-mediated Self-assembly