Back Cover: Hyperbranched Microwire Networks of Organic Cocrystals with Optical Waveguiding and Light‐Harvesting Abilities (Angew. Chem. Int. Ed. 52/2021)

Abstract

Like well‐manicured trees in nature, hyperbranched nanotrees are generated by sequential growth of multiple generations of aligned branches on the trunks, giving efficient light absorption and trapping. In their Research Article on page 27046, Yilong Lei and co‐workers develop a solution co‐assembly strategy to access ordered binary and ternary hyperbranched microwires comprising arene‐perfluoroarene cocrystals, which display optical waveguiding and light‐harvesting abilities.

Recent Progress of Noncovalent Interaction‐Driven Self‐Assembly of Photonic Organic Micro‐/Nanostructures

“…prepared green‐emitting ( Figure a) hyperbranched organic microwires via the solution‐phase coassembly of 1,4‐bis(pentafluorostyryl)benzene (10Ft) and 9,10‐bis(phenylethynyl)anthracene (BA) at a molar ratio of 2:1. [ 85 ] According to the predicted growth morphology (Figure 10b), 10Ft:BA formed a 1D microstructure under the influence of AP interactions. Figure 10c presents the molecular packing of the corresponding crystals observed along the b ‐axis, showing 10Ft and BA molecules stacked face‐to‐face along the c ‐axis and one BA molecule sandwiched between two 10Ft molecules.…”

“…Reproduced with permission. [ 85 ] Copyright 2021, Wiley‐VCH. FM images of d) BP‐1,3‐DTFB and e) BP‐1,4‐DTFB nanorod meshes.…”

Homogenous Hyperbranched Networks Enabling Anisotropic Photon Transport and Polarization Filtering

“…reported multilevel hyperbranched organic heterostructures with the two‐component donor–acceptor system through the strategy of using self‐generated organic particles as intermediates. [ 26 ] Nevertheless, the growth of two‐ or multiple‐component hyperbranched structures crystals are necessary to the strict lattice‐match and molecular assembly characteristics, which bring about the difficulty in manipulation of the nucleation process and the complexity in epitaxial relationships of different material combinations. [ 27–29 ] Homogenous hyperbranched networks (HHNs), engineered from individual organic material, provide an alternative approach to develop the functionalized hyperbranched networks due to the advantage of simplicity, cost‐effectiveness, and improved crystal quality.…”