Unveiling 79-Year-Old Ixene and Its BN-Doped Derivative.
Palas Baran PatiEunji JinYohan KimYongchul KimJinhong MunSo Jung KimSeok Ju KangWonyoung ChoeGeunsik LeeHyung-Joon ShinYoung S ParkPublished in: Angewandte Chemie (International ed. in English) (2020)
Polycyclic aromatic hydrocarbons (PAHs) are key components of organic electronics. The electronic properties of these carbon-rich materials can be controlled through doping with heteroatoms such as B and N, however, few convenient syntheses of BN-doped PAHs have been reported. Described herein is the rationally designed, two-step syntheses of previously unknown ixene and BN-doped ixene (B2 N2 -ixene), and their characterizations. Compared to ixene, B2 N2 -ixene absorbs longer-wavelength light and has a smaller electrochemical energy gap. In addition to its single-crystal structure, scanning tunneling microscopy revealed that B2 N2 -ixene adopts a nonplanar geometry on a Au(111) surface. The experimentally obtained electronic structure of B2 N2 -ixene and the effect of BN-doping were confirmed by DFT calculations. This synthesis enables the efficient and convenient construction of BN-doped systems with extended π-conjugation that can be used in versatile organic electronics applications.
Keyphrases
- polycyclic aromatic hydrocarbons
- quantum dots
- crystal structure
- visible light
- highly efficient
- sensitive detection
- metal organic framework
- density functional theory
- high resolution
- gold nanoparticles
- water soluble
- heavy metals
- single molecule
- high throughput
- molecular dynamics
- label free
- risk assessment
- molecular docking
- human health
- optical coherence tomography
- high speed
- drinking water