Buildup of Redox‐Responsive Hybrid from Polyoxometalate and Redox‐Active Conducting Oligomer: Its Self‐Assemblies with Controllable Morphologies

Abstract

A redox-responsive hybrid of polyoxometalate and conducting oligomer including its self-assemblies with controllable morphologies are reported. To this end, a hybrid molecule, containing a Lindqvist hexamolybdate as the polar head group and N,N'-bis(4'-amino-2,6-dimethylphenyl)-1,4-quinonediimine as the redox-responsive and aggregating group, is prepared. This hybrid exhibits redox-responsive behavior with controllable assembling morphological transition from spherical vesicles to short cylindrical vesicles. Besides, the hybrid-based self-assemblies are transferred to the surface, thus the surface wettability can be well-tuned owing to the morphological transitions of the self-assemblies. By marrying conducting materials with polyoxometalate chemistry, this research opens a new horizon of polyoxometalate-based self-assembled systems with potential applications in functional materials.

Electroactive Amphiphiles for Addressable Supramolecular Nanostructures

“…A system showing similar behaviour was developed by She et al . from a polyoxometallate (POM) coupled with a covalently linked tri(aniline).…”

Insights into organic–inorganic hybrid molecular materials: organoimido functionalized polyoxomolybdates

“…This discovery opens a new view of self-assembly systems based on polyoxometalates that could be used as conducting functional materials. 201…”

“…This discovery opens a new view of self-assembly systems based on polyoxometalates that could be used as conducting functional materials. 201 John Fielden et al have investigated ten chromophores based on organoimido polyoxometalate (POM) and showed that imido-Lindqvist clusters are particularly effective acceptors in second-order NLO (nonlinear optical) materials when used with short ( phenyl) π-bridges. Here, the substituents on the aryl ring significantly impact the nature of electronic transitions in arylimido-POMs.…”

Peptide sequence mediated self-assembly of molybdenum blue nanowheel superstructures

“…POMs, synthesized from simple metal oxide salts, are inexpensive yet elegant structures that can be readily formed through one-pot self-assembly. [14][15][16][17][18][19][20][21][22][23][24][25][26][27] Among them, gigantic Molybdenum Blue (MB) wheel-shaped nanoclusters are of great importance in this area on account of their structural complexity and functional diversity. A certain number (n) of {Mo 8 } as main building blocks are connected together by the same number of {Mo 1 } and {Mo 2 } linkage units to form a nanowheel architecture, 28,29 exhibiting very high symmetries (e.g.…”