Controlling the aggregation and assembly of boron‐containing molecular and polymeric materials

Abstract

Boron-containing molecules and polymers are attractive as powerful tunable Lewis acids for small molecule activation and catalysis, as luminescent materials for organic electronic device and (bio)imaging applications, and as smart chemical sensors. While the characteristics of the boron-containing building blocks are attractive in and of themselves, their assembly into higher order supramolecular materials offers access to unique properties and emerging functions. Herein, we highlight recent achievements in the field of aggregated organoboron materials. We discuss how supramolecular interactions can be exploited to precisely control the structure of the assemblies and impact their functions as luminescent materials, recyclable and smart catalyst systems, chemical sensors, stimuli-responsive and self-healing materials.

A Strategy Based on Aggregation‐Induced Ratiometric Emission to Differentiate Molecular Weight of Supramolecular Polymers

“…Briefly, in the wake of the increase for DP DOSY , the fluorescence colors transformed from dark blue to yellow‐green. In this system, except for the PBHZ‐based fluorophore, other molecules such as 2‐(dimesitylboraneyl)‐5‐(dimethylamino)benzaldehyde, [16d] boron dibenzopyrene [16e] and Triphenylamine‐modified bodipy derivatives [16f] can be applied.…”

Metal‐Ligand Interactions and Oligo(p‐phenylene vinylene) Derivatives Based Supramolecular Polymer Possessing Variable Fluorescence Colors

“…On the basis of the above results, we can envisage that not limited to OPV groups and terpyridine-Zn 2+ coordination, a wealth of fluorophores with aggregation-dependent emission color (e.g., other J-type dyes, Htype dyes, aggregation-induced emission molecules, etc. [36,[65][66][67][68] ), as well as various non-covalent interactions for assembly (e.g., other metal-ligands, hydrogen bonding, 𝜋-𝜋 stacking interactions, host-guest interactions, etc. ), are expected to be used for the construction of supramolecular polymers with variable fluorescence colors, inferring the superior generalizability of this strategy.…”

“…Fluorescent supramolecular polymers combine the inherent advantages of supramolecular polymers in terms of dynamic nature with the optoelectronic properties of contained fluorophores. [33][34][35][36][37][38][39][40] To date, fluorescent supramolecular polymers have found their potentials in sensors, biological imaging, optoelectronic devices, etc. [40][41][42][43][44] However, limited by the properties of traditional fluorophores, the majority of fluorescent supramolecular polymers can only exhibit a single fluorescence color, restricting the expansion of their applications to a certain extent.…”

From plastic to elastomers: introducing reversible copper–thioether coordination in CO2-based polycarbonate

“…As the use of polymers becomes more widespread and their applications get broader, a wider range of specific properties are required, such as electrical conductivity, photosensitivity, magnetism, and self-healing. [1][2][3][4][5][6][7][8][9][10] As a result, studying the functionalization of polymers is crucial. After long-term development, research on the functionalization of polymers has gradually matured.…”