Next Article in Journal
High Catalytic Efficiency of Nanostructured β-CoMoO4 in the Reduction of the Ortho-, Meta- and Para-Nitrophenol Isomers
Previous Article in Journal
Biodegradable and Biocompatible Polyhydroxy-alkanoates (PHA): Auspicious Microbial Macromolecules for Pharmaceutical and Therapeutic Applications
Previous Article in Special Issue
Quantum-Chemical Insights into the Self-Assembly of Carbon-Based Supramolecular Complexes
Article Menu
Issue 2 (February) cover image

Export Article

Open AccessArticle
Molecules 2018, 23(2), 363; https://doi.org/10.3390/molecules23020363

Coordination-Enhanced Luminescence on Tetra-Phenylethylene-Based Supramolecular Assemblies

1
College of Chemistry, Fuzhou University, Fuzhou 350108, China
2
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
*
Author to whom correspondence should be addressed.
Received: 14 January 2018 / Revised: 31 January 2018 / Accepted: 5 February 2018 / Published: 9 February 2018
Full-Text   |   PDF [2900 KB, uploaded 9 February 2018]   |  

Abstract

Materials with aggregation-induced emission (AIE) properties have received increased attention recently due to their potential applications in light-emitting devices, chemo/biosensors and biomedical diagnostics. In general, AIE requires the forced aggregation of the AIEgens induced by the poor solvent or close arrangement of AIEgens covalently attached to polymer chains. Here, we report two coordination-enhanced fluorescent supramolecular complexes featuring hierarchically restricted intramolecular motions via the self-assembly of tetraphenylethylene (TPE)-based tetra-dentate (La) and bidentate (Lb) ligands and the cis-Pd(en)(NO3)2 (en = ethylenediamine) unit. While the free ligands are non-emissive in dilute solution and show typical AIE properties in both mixed solvent system and the solid state, the self-assembled complexes maintain their fluorescent nature in the solution state. In particular, the Pd4(La)2 complex shows remarkable 6-fold fluorescent enhancement over La in dilute solution. We anticipate that these kinds of coordination-enhanced emissive supramolecules will find applications in biomedical sensing or labeling. View Full-Text
Keywords: tetraphenylethylene; coordination self-assembly; fluorescence enhancement; AIE tetraphenylethylene; coordination self-assembly; fluorescence enhancement; AIE
Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Supplementary material

SciFeed

Share & Cite This Article

MDPI and ACS Style

Yan, Q.-Q.; Hu, S.-J.; Zhang, G.-L.; Zhang, T.; Zhou, L.-P.; Sun, Q.-F. Coordination-Enhanced Luminescence on Tetra-Phenylethylene-Based Supramolecular Assemblies. Molecules 2018, 23, 363.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Molecules EISSN 1420-3049 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top