Compartmentalization within Nanofibers of Double‐Decker Phthalocyanine Induces High‐Performance Sensing in both Aqueous Solution and the Gas Phase

Abstract

The functionalization of natural 1D architectures is dependent on hierarchically inner nanostructures. However,t he artificial supramolecular nanofiberso rn anotubes were rarely developed with complex inner structures. Inspired by ab iomimetic strategy,s ingle-molecule-diameter nanofibers of double-decker phthalocyanine (EuPc2) with compartmentalized internal space and fantastic electrochemical features were developed upon air/water interfacial assembly with poly-l-lysine. EuPc2/poly-l-lysine nanofibers can be electrochemical sensors both in water and the gas phase and have the best analytical performances for nitrite among all the porphyrins or phthalocyanines monomers and assemblies. Imbeddingnitrite in compartments not only promotes the sensingb ut also changes the supramolecular chirality of nanofibers, and the morphological-dependents ensing properties of EuPc2 assemblies in water are different from that in the gas phase. These resultss uggest the unprecedented properties for diverse applications of artificial 1D architectures containing complex inner nanostructures.Supporting information and the ORCID identification number(s) for the author(s) of this article can be found under: https://doi.

Recent advances in phthalocyanines for chemical sensor, non-linear optics (NLO) and energy storage applications

“…Several studies document the use of Pcs as integral components of chemical sensors where different central metals and/ or the peripheral substituents were incorporated to achieve specific functionality in different media (i.e. gas and liquid) [30], [31]. The intense 18 π-electron skeleton of Pcs encourage interactions with liquid and gaseous analytes resulting in detectable physical changes [32], [33].…”

2D Phthalocyanine-Assembled Porous Nanostructure-Based Electrochemical Platform for High-Efficiency Detection of Ascorbic Acid

“…Phthalocyanine, a classical synthetic tetrapyrrole-based macrocyclic compound, has aroused more and more attention because of its unique electronic structure and multiple functions. − In particular, sandwich-type phthalocyanine complexes’ enlarged conjugated system endow them with better electrical conductivity than that of ordinary monolayer phthalocyanine molecules. − In the previous work, we have fabricated particular assemblies with a one-dimensional nanofiber structure using sandwich-type phthalocyanine molecules and realized effective detection of nitrite with ultrahigh performance . Inspired by this work, herein, we report the design and synthesis of a new 2D porous structure constructed by the self-assembly of 12-crown-ether-4-substituted double-decker phthalocyanine (Pc2) at the air/water interface.…”

“…28−32 In the previous work, we have fabricated particular assemblies with a one-dimensional nanofiber structure using sandwich-type phthalocyanine molecules and realized effective detection of nitrite with ultrahigh performance. 33 Inspired by this work, herein, we report the design and synthesis of a new 2D porous structure constructed by the self-assembly of 12-crown-ether-4-substituted double-decker phthalocyanine (Pc2) at the air/water interface.…”

Precise construction of lithiophilic sites by diyne-linked phthalocyanine polymer for suppressing metallic lithium dendrite

“…28 The well-defined planar π-conjugated structure makes phthalocyanine a unique building block for the construction of two-dimensional materials, such as covalent organic frameworks (COFs), [29][30][31] metal-organic frameworks (MOFs), [32][33][34] and conjugated organic polymers (COPs). 35,36 Owing to the large π-conjugated structure and remarkable electron transport capability, phthalocyanine-based advanced materials have many fantastic physical and chemical properties and are very promising for applications in catalysis, [37][38][39][40] electronic devices, 41,42 and energy storage. [43][44][45] In the phthalocyanine molecule, the four electron-rich pyrrolic nitrogen atoms as well as the four aza nitrogen atoms have strong interaction with Li ions, serving as the lithiophilic epicenters at the atomic level.…”