Spontaneous and catalytic fusion of supramolecules

Abstract

Using principles of completive and integrative self-sorting, a clean supramolecule-to-supramolecule transformation is realised that involves fusion of a 3-component rectangle and a 2-component equilateral triangle into a 5-component scalene triangle. While the spontaneous process takes 15 h at 25 °C, the catalytic transformation is completed within 1 h.

Heteroleptic copper phenanthroline complexes in motion: From stand-alone devices to multi-component machinery

“…Considering that self-sorting is the key factor in design we have organized the present chapter along the number of components used in the corresponding devices, switches and machines. Such focus will not allow coverage of work that has been devoted to the (inter)conversion of supramolecular structures [43][44][45][46][47], for instance the supramolecular transformation depicted in Fig. 17 [44].…”

Kovalente organische Netzwerke und Käfigverbindungen: Design und Anwendungen von polymeren und diskreten organischen Gerüsten

“…[152][153][154][155] FürCOFs und kovalente organische Käfige sind bis jetzt allerdings noch deutlich weniger Beispiele fürd ie drei häufigsten Arten von Selbstsortierung bekannt (Abbildung 8). Um komplexere molekulare Architekturen zu generieren, die verschiedenste funktionale Einheiten mit großer räumlicher Präzision anordnen, müssen Strategien fürM ehr-Komponenten-Systeme entwickelt werden.…”

Multicomponent reassembly of terpyridine-based materials: quantitative metallomacrocyclic rearrangement

“…Among these binding interactions, coordination-driven assembly has ascended in importance due to the availability of a wide variety of ligands and metal ions. 18,19 More specifically, 2,2':6',2''-terpyridine-based 25 building blocks have drawn extensive attention due to their ability to form stable tpy-M II -tpy complexes, while allowing the incorporation of utilitarian structural features. 20 The majority of metallosupramolecular constructs utilize symmetric monomers involving homoleptic assemblies; 21 however, the scope of 30 heteroleptic assemblies involving two or more components has been limited due to their inherent tendency to produce competitive products resulting from self-sorting.…”

“…The dynamic equilibrium between ligand 1 and dimer 2 in presence of a kinetically labile metal ion, such as Zn(II) or Cd(II), quantitatively produced binuclear 5 and 6, which can be attributed to entropy maximization. 34 Due to the low 25 complexation energy of both Zn(II)-tpy and Cd(II)-tpy, 35 dynamic equilibria involving these two metal ions tend to produce the maximum number of molecules possible to maximize entropy, which in turn compensates for the low complexation energy. As the "self-sorting" of ligand 1 and dimer 2 produces 30 less species compared to their heteroleptic assembly producing 5 or 6, the dynamic equilibrium prefers the latter.…”

“…The authors gratefully acknowledge funding from the National 25 Science Foundation (CHE-1151991 GRN and CHE-1308307 C.W.) and the Ohio Board of Regents.…”