Handedness Inversion of Chiral 3‐Aminophenol Formaldehyde Resin Nanotubes Mediated by Metal Coordination

Abstract

Precise adjustment of microstructure and handedness of chiral nanomaterials is important to regulate their properties and performance.H erein, helical 3-aminophenol formaldehyde resin (APF) nanotubes and corresponding carbonaceous nanotubes with controllable handedness and optical activity were obtained via an external metal ionmediated supramolecular co-templating method in an enantiomerically pure template system, in which an appropriate amount of Mn 2+ (Co 2+ or Ni 2+)w ith moderate coordination abilities can reverse the spatial arrangement of the phenylglycine-based amphiphilic template molecules through metal coordination. Different stacking modes of coordination complexes in disparate metal ion systems lead to diverse helical senses (diameter and pitch) of the obtained helical APF.I n addition, this coordination mode of metal intervention can be applied to other amine-based helical polymer synthesis systems,whichpaves the wayfor the design of high-quality chiral nanomaterials with satisfactory physical parameters and properties.

Modulating the Macroscopic Helicity of Poly(m‐phenylenediamine) by Achiral Monomer Copolymerization

“…The template molecule ( S )/( R )‐PhgC 16 was synthesized based on our previous work. [ 14 ] Laboratory homemade deionized water (18.2 MΩ cm) was used for all experiments.…”

Nitrogen, phosphorus co-doped hollow porous carbon microspheres as an oxidase-like electrochemical sensor for baicalin

“…The controlled chirality and optical activity can be obtained through a metal ion-palmitoyl phenylalanine co-templating system. 23 The soft-templates play a decisive role in the construction of materials, and it is of great urgence to seek new soft-templates to realize the innovation of porous carbons.…”

Modulating the Supramolecular Helicity of Poly(m-phenylenediamine) by Achiral Monomer Copolymerization

“…12 The other type only owns achiral monomer, but it can grow into a macroscopic helical structure under the restriction of external chiral templates. 13 In the concept of function-oriented applications, achiral monomers may possess more potential due to their richer diversity and better availability of well-established polymerization techniques. A variety of single chiral polymeric nanomaterials have been fabricated through the classic supramolecular template method.…”

“…S18-S19). 13 The PMPD and its copolymers mentioned in the article were all prepared by an analogical supramolecular template method. Here we took the copolymer preparation system as an example to illustrate.…”