Assembly and characterization of novel hydrogen-bond-induced nanoscale rods.

J Org Chem

CAS Key Laboratory of Organic Solids, Center for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, P.R. China.

Published: December 2004

AI Article Synopsis

  • - A new class of bis-urea compounds with perylene bisimide was created and analyzed, confirming the presence of strong hydrogen bonding between urea groups through techniques like (1)H NMR and fluorescence.
  • - The study found that these bis-urea compounds exhibit stable and quick photocurrent responses when formed into self-assembled films.
  • - Transmission electron microscopy (TEM) images revealed that the compounds can self-assemble into well-defined nanoscale rods with consistent diameters, highlighting the effectiveness of hydrogen bonding and pi-pi stacking interactions among perylene rings.

Article Abstract

A class of bis-urea compounds with perylene bisimide was synthesized and characterized successfully. (1)H NMR and fluorescence spectra confirmed that strong hydrogen-bonding interactions between neighboring urea groups were formed. Interestingly, the photocurrent measurement showed that the self-assembled films of bis-urea compounds could produce steady and rapid anodic photocurrent responses. The TEM images indicated that well-defined nanoscale rods with uniform diameter distribution could be fabricated by self-assembly of hydrogen-bonding interactions and pi-pi stacking interactions of perylene rings.

Download full-text PDF

Source
http://dx.doi.org/10.1021/jo0486037DOI Listing

Publication Analysis

Top Keywords

nanoscale rods
8
bis-urea compounds
8
hydrogen-bonding interactions
8
assembly characterization
4
characterization novel
4
novel hydrogen-bond-induced
4
hydrogen-bond-induced nanoscale
4
rods class
4
class bis-urea
4
compounds perylene
4

Similar Publications

Smith-Purcell radiation (SPR) is a versatile platform for finely tuning nanoscale light across a broad spectral range. This study introduces a theoretical approach for shaping SPR wavefronts using aperiodic metagratings (AMGs). The AMGs consist of arrays of identical metal nano-rods (MNRs), with each MNR's spatial position precisely adjustable.

View Article and Find Full Text PDF

In the present study, the dissolution and microstructural transformation of CeO nanoparticles (NPs) in a phosphate-containing milieu were investigated. The dissolution behaviour of 2 nm and 5 nm CeO NPs in phosphate buffer solutions was found to differ markedly from that observed in 0.01 M NaClO.

View Article and Find Full Text PDF
Article Synopsis
  • Modular protein engineering allows for the creation of high-molecular-weight assemblies and nanoscale biomaterials with precision, inspired by the structure of human dystrophin.
  • The study focuses on designing elongated nanorods using a module of three tandem spectrin repeats that self-assemble through coiled-coil peptides, ensuring structural integrity and continuity of the α-helix.
  • The resulting rigid rods, measured by advanced microscopy techniques, can be equipped with various proteins or peptides along their length, showcasing their potential as functionalized biomaterials in research and applications.
View Article and Find Full Text PDF

Nanometer-sized clusters are often targeted due to their potential applications as nanoreactors or storage/delivery devices. One route to assemble and stabilize finite structures consists of imparting directional bonding patterns between the nanoparticles. When only a portion of the particle surface is able to form an inter-particle bond, finite-size aggregates such as micelles and vesicles may form.

View Article and Find Full Text PDF

Organisms are able to control material patterning down to the nanometer scale. This is exemplified by the intricate geometrical patterns of the silica cell wall of diatoms, a group of unicellular algae. Theoretical and modeling studies propose putative physical and chemical mechanisms to explain morphogenesis of diatom silica.

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!