Exploiting coordination geometry to tune the dimensions and processability of metallosupramolecular polymers

Abstract

The increase in preorganization associated with coordination geometry changes is exploited to regulate solvation effects and, in turn, processability of metallosupramolecular polymers exhibiting close metal–metal contacts.

Luminescence and Length Control in Nonchelated d8‐Metallosupramolecular Polymers through Metal‐Metal Interactions

“…Interestingly, these lifetimes are longer than those determined for polydentate Pt II aggregates or polymers found in the bibliography. [16,18,28] At 77 K, the emission quantum yield of SPs 1B was determined to be Φ L 77 K = 0.53 � 0.02 (for the quantum yields of all species at RT, see Figures S6-S8). The excitation spectrum collected The remarkable emission properties of 1B furthermore allowed us to apply emission lifetime-resolved imaging for the first time in the field of SPs as a technique orthogonal to conventional imaging methods such as AFM or SEM.…”

Bioinspired crowding directs supramolecular polymerisation

“…In both cases, an increase in the lag time prior to the self-assembly could be observed, ultimately producing the characteristic flower-like structures of Agg 1C . Additionally, we used other aggregate morphologies, such as spherical nanostructures or two-dimensional nanosheets, as crowding agents 64 , 65 . These nanostructures do not affect the final aggregate morphology of 1 into fibre bundles (Agg 1U ), indicating that only elongated one-dimensional fibres are effective crowding agents for the present system (Fig.…”

“…In order to probe the applicability of our method to other systems, we selected other available building blocks that fulfil the abovementioned characteristics to act as supramolecular crowding agents, and subsequently conducted analogous studies under kinetic conditions (Fig. 5, Supplementary Fig 47 -53) [63][64][65] . Initially, we focused on one-dimensional supramolecular polymers previously investigated in our group 63,64 .…”

Lumineszenz‐ und Längenkontrolle in nicht‐chelatisierten d8‐metallosupramolekularen Polymeren vermittelt durch Metall‐Metall‐Wechselwirkungen

“…[4,7,[11][12][13][14][15][16][17][18][20][21][22] Interessanterweise sind diese Lebensdauern deutlich länger als die in der Literatur für polydentate Pt II -Aggregate oder -Polymere berichteten Werte. [16,18,28]…”