Next Article in Journal
Structure Characterization and Hypoglycaemic Activities of Two Polysaccharides from Inonotus obliquus
Next Article in Special Issue
Design of Novel Pyrene-Bodipy Dyads: Synthesis, Characterization, Optical Properties, and FRET Studies
Previous Article in Journal
Determination of Novel Highly Effective Necrostatin Nec-1s in Rat Plasma by High Performance Liquid Chromatography Hyphenated with Quadrupole-Time-of-Flight Mass Spectrometry
Previous Article in Special Issue
A Self-Assembled ZnII-NdIII Heterohexanuclear Dimer Based on a Hexadentate N2O4-Type Ligand and Terephthalic Acid: Synthesis, Structure, and Fluorescence Properties
Article Menu
Issue 8 (August) cover image

Export Article

Open AccessArticle
Molecules 2018, 23(8), 1947; https://doi.org/10.3390/molecules23081947

AIE/ACQ Effects in Two DR/NIR Emitters: A Structural and DFT Comparative Analysis

1
Department of Chemical Sciences, University of Napoli Federico II, 80126 Napoli, Italy
2
Department of Agriculture, University of Napoli Federico II, Portici 80055 Portici NA, Italy
3
Department of Industrial Engineering, University of Salerno, Fisciano 84084 SA, Italy
4
Department of Pharmacy, University of Salerno, Fisciano 84084 SA, Italy
5
Department of Electrical and Computer Engineering, Ben-Gurion University of the Negev, POB 653, Beer-Sheva 84105, Israel
*
Authors to whom correspondence should be addressed.
Received: 12 July 2018 / Revised: 1 August 2018 / Accepted: 2 August 2018 / Published: 4 August 2018
(This article belongs to the Special Issue Lumino and Fluorophores—Illuminating Science and Technology)
Full-Text   |   PDF [3442 KB, uploaded 4 August 2018]   |  

Abstract

The effects of aggregation-induced emission (AIE) and of aggregation caused quenching (ACQ) were observed and discussed on two solid materials based on a phenylenevinylene (PV) and a dicyano-PV structure. The brightest emitter in solid films shows a high fluorescence quantum yield in the deep red/near IR (DR/NIR) region (75%). The spectroscopic properties of the two crystalline solids have been described and compared in terms of crystallographic data and time dependent DFT analysis. The influence of the cyano-substituents on AIE/ACQ mechanism activation was discussed. View Full-Text
Keywords: DR/NIR emitter; PLQY; AIE/ACQ; DFT DR/NIR emitter; PLQY; AIE/ACQ; DFT
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

Caruso, U.; Panunzi, B.; Diana, R.; Concilio, S.; Sessa, L.; Shikler, R.; Nabha, S.; Tuzi, A.; Piotto, S. AIE/ACQ Effects in Two DR/NIR Emitters: A Structural and DFT Comparative Analysis. Molecules 2018, 23, 1947.

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