Oxygen-induced self-assembly of quaterphenyl molecules on metal surfaces.

Chem Commun (Camb)

College of Materials Science and Engineering, Tongji University, Caoan Road 4800, Shanghai 201804, P. R. China.

Published: October 2014

From high-resolution UHV-STM imaging and DFT calculations we have demonstrated a novel method to construct well-ordered molecular nanostructures of an unfunctionalized aromatic molecule (4Ph) on both Ag(110) and Cu(110) by introducing oxygen molecules.

Download full-text PDF

Source
http://dx.doi.org/10.1039/c4cc05235hDOI Listing

Publication Analysis

Top Keywords

oxygen-induced self-assembly
4
self-assembly quaterphenyl
4
quaterphenyl molecules
4
molecules metal
4
metal surfaces
4
surfaces high-resolution
4
high-resolution uhv-stm
4
uhv-stm imaging
4
imaging dft
4
dft calculations
4

Similar Publications

Supramolecular Assembly of Hydrogen-Bonded Organic Frameworks with Carbon Dots: Realizing Ultralong Aqueous Room-Temperature Phosphorescence for Anticounterfeiting.

ACS Appl Mater Interfaces

September 2024

College of Chemistry, Chemical Engineering and Environment, Fujian Provincial Key Laboratory of Modern Analytical Science and Separation Technology, Minnan Normal University, Zhangzhou, Fujian 363000, PR China.

Room-temperature phosphorescent carbon dots (RTP-CDs) have received increasing attention due to their excellent optical properties and potential applications. Nevertheless, the realization of RTP-CDs in aqueous solutions remains a considerable challenge due to the water-molecule- and oxygen-induced deactivation of the triplet excitons, which leads to phosphorescence quenching. In this study, ultralong phosphorescence in water was achieved by in situ self-assembly of CDs encapsulated in a rigid hydrogen-bonded organic framework (HOF).

View Article and Find Full Text PDF
Article Synopsis
  • Pathological ocular neovascularization from retinal ischemia is a significant cause of vision loss, traditionally treated with invasive anti-VEGF injections of Bevacizumab (Beva).
  • Researchers developed ultrasmall polymeric micelles (P@Beva) that encapsulate Beva for noninvasive delivery to the eye, showing better stability and enhanced drug uptake in ocular cells.
  • In trials, P@Beva demonstrated similar effectiveness to standard injections in treating oxygen-induced retinopathy, indicating potential for safer and simpler treatment options for eye diseases.
View Article and Find Full Text PDF

We report a new approach to building hierarchical superstructures using a shape-persistent porous organic cage, which acts as a premade secondary building unit, and coordination chemistry. To illustrate the principle, a zinc-metalated porphyrin box (Zn-PB), a corner-truncated cubic porous cage, was connected by suitable dipyridyl terminated bridging ligands to construct PB-based hierarchical superstructures (PSSs). The PSSs were stabilized not only by the coordination bonds between Zn ions and bipyridyl-terminated ligands but also by π-π interactions between the corners of the Zn-PB units.

View Article and Find Full Text PDF

Influence of Dissolved O2 in Organic Solvents on CuOEP Supramolecular Self-Assembly on Graphite.

Langmuir

June 2016

Materials Sciences Divisions, Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, California 94720, United States.

The supramolecular self-assembly of copper(II) octaethylporphyrin (CuOEP) and octaethylporphyrin (H2OEP) on graphitic surfaces immersed in organic solvents (dichlorobenzene, dodecane) is studied using scanning tunneling microscopy (STM) and Raman spectroscopy. STM reveals that the self-assembled structure of CuOEP in 1,2-dichlorobenzene is significantly altered by dissolved oxygen within the solvent. Raman spectroscopy reveals that the presence of the oxygen alters the molecule-substrate interaction, which is attributed to the adsorption of oxygen on the Cu center of the CuOEP, which is facilitated by electron transfer from the graphitic surface.

View Article and Find Full Text PDF

Oxygen-induced self-assembly of quaterphenyl molecules on metal surfaces.

Chem Commun (Camb)

October 2014

College of Materials Science and Engineering, Tongji University, Caoan Road 4800, Shanghai 201804, P. R. China.

From high-resolution UHV-STM imaging and DFT calculations we have demonstrated a novel method to construct well-ordered molecular nanostructures of an unfunctionalized aromatic molecule (4Ph) on both Ag(110) and Cu(110) by introducing oxygen molecules.

View Article and Find Full Text PDF

Want 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!