Borazatruxenes as precursors for hybrid C-BN 2D molecular networks
| Autor: | Anamaria Trandafir, G. Dan Pantoş, Adelina Ilie |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Nanoscale. 14:1929-1943 |
| ISSN: | 2040-3372 2040-3364 |
| DOI: | 10.1039/d1nr07194g |
| Popis: | Synthesizing atomically thin, crystalline two-dimensional (2D) molecular materials which combine carbon with other elements is an emerging field requiring both custom-designed molecular precursors and their ability to organize into networks (hydrogen-bonded or covalent). Hybrid carbon-boron nitride (C-BN) networks face the additional challenge of needing hydrolytically-stable BN-containing molecular precursors. Here, we show that borazatruxenes (truxene-like molecules with a borazine core) and their halogenated derivatives are highly stable precursors suitable for on-surface assembly. Using scanning tunneling microscopy (STM) and density functional theory (DFT) simulations we demonstrate hierarchical H-bonded assembly based on chiral homodimers of tribromo-borazatruxenes (3Br-borazatruxenes) as building blocks for both 1D chains and 2D networks. A low-symmetry, H-bonded chiral 2D lattice forms on Au(111) from the |
| Databáze: | OpenAIRE |
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