AI Article Synopsis
- * The study explores the synthesis of new azulene-embedded NGs on a gold surface, revealing unexpected structural and conformational characteristics through advanced imaging techniques like scanning tunneling microscopy (STM) and atomic force microscopy (nc-AFM).
- * The research includes computational analysis using density functional theory (DFT) and molecular dynamics (MD) simulations to understand the dynamics of precursor materials and inform the design of π-extended non-benzenoid NGs for future applications.
Article Abstract
Non-benzenoid non-alternant nanographenes (NGs) have attracted increasing attention on account of their distinct electronic and structural features in comparison to their isomeric benzenoid counterparts. In this work, we present a series of unprecedented azulene-embedded NGs on Au(111) during the attempted synthesis of cyclohepta[def]fluorene-based high-spin non-Kekulé structure. Comprehensive scanning tunneling microscopy (STM) and non-contact atomic force microscopy (nc-AFM) evidence the structures and conformations of these unexpected products. The dynamics of the precursor bearing 9-(2,6-dimethylphenyl)anthracene and dihydro-dibenzo-cyclohepta[def]fluorene units and its reaction products on the surface are analyzed by density functional theory (DFT) and molecular dynamics (MD) simulations. Our study sheds light on the fundamental understanding of precursor design for the fabrication of π-extended non-benzenoid NGs on a metal surface.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/chem.202301739 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Super-resolution expansion microscopy in plant roots.
Plant Cell
January 2025
Institute of Science and Technology Austria, Am Campus 1, 3400 Klosterneuburg, Austria.
Super-resolution methods provide far better spatial resolution than the optical diffraction limit of about half the wavelength of light (∼200-300 nm). Nevertheless, they have yet to attain widespread use in plants, largely due to plants' challenging optical properties. Expansion microscopy improves effective resolution by isotropically increasing the physical distances between sample structures while preserving relative spatial arrangements and clearing the sample.
View Article and Find Full Text PDFPredicting the polyspecificity of aminoacyl-tRNA synthetase for non-canonical amino acids using molecular dynamics simulation and MM/PBSA.
PLoS One
January 2025
Department of Biotechnology and Bioengineering, Chonnam National University, Gwangju, Republic of Korea.
With the advancement of genetic code expansion, the field is progressing towards incorporating multiple non-canonical amino acids (ncAAs). The specificity of aminoacyl-tRNA synthetases (aaRSs) towards ncAAs is a critical factor, as engineered aaRSs frequently show polyspecificity, complicating the precise incorporation of multiple ncAAs. To address this challenge, predicting binding affinity can be beneficial.
View Article and Find Full Text PDFEnhancing Mergers and Acquisitions (M&A) performance: Analyzing the role of human resource practices in Sri Lanka's telecommunication industry through Lewin's change management model.
PLoS One
January 2025
SLIIT Business School, Sri Lanka Institute of Information Technology, Malabe, Sri Lanka.
This study explores the integration of sexual and reproductive health (SRH) education in Sri Lanka, utilizing the Health Belief Model (HBM) to predict the perceived quality of SRH education among non-state undergraduate students. In many Asian countries, including Sri Lanka, cultural resistance and skepticism often challenge SRH education initiatives. The research is based on a questionnaire survey, examining factors influencing the perceived quality of SRH education, such as cultural norms, embarrassment, attitudes, awareness, and institutional support.
View Article and Find Full Text PDFAqueous Binder with Self-Emulsifying Characteristics for Practical Si/C Anode in Lithium-Ion Batteries.
Chemistry
January 2025
East China University of Science and Technology, School of Material Science & Engineering, P.O. Box 289, 130 Meilong Rd., 200237, Shanghai, CHINA.
Silicon/carbon (Si/C) materials have achieved commercial applications as a solution to the problems of large volume expansion and short lifespan of silicon-based anodes in lithium-ion batteries. However, the potential risk of structural fracture and localized differences in surface adsorption properties lead to difficulties in maintaining the structural integrity of Si/C anodes using conventional binders during repeated lithiation/delithiation. Herein, an aqueous binder (PVA-g-M) based on polyvinyl alcohol (PVA) grafted methacrylic acid (MAA) obtained by self-emulsifyingemulsion polymerization is reported.
View Article and Find Full Text PDFElectrical Characteristics of Solution-Based Thin-Film Transistors with a Zinc-Tin Oxide/Carbon Nanotube Stacked Nanocomposite Active Layer.
Nanomaterials (Basel)
December 2024
Department of Semiconductor Engineering, Hoseo University, Asan 31499, Republic of Korea.
A stacked nanocomposite zinc-tin oxide/single-walled carbon nanotubes (ZTO/SWNTs) active layer was fabricated for thin-film transistors (TFTs) as an alternative to the conventional single-layer structure of mixed ZTO and SWNTs. The stacked nanocomposite of the solution-processed TFTs was prepared using UV/O treatment and multiple annealing steps for each layer. The electrical properties of the stacked device were superior to those of the single-layer TFT.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!