Enhanced Electrochemiluminescence of Porphyrin-Based Metal–Organic Frameworks Controlled via Coordination Modulation

Precise control over the composition, morphology, and size of porphyrin-based metal–organic frameworks is challenging, but the extension of these hybrid materials will enable the creation of novel electrochemiluminescence (ECL) emitters. The coordination of various entities is made from Zn2+ ions an...

Full description

Saved in:
Bibliographic Details
Published in:Analytical chemistry (Washington) 2020-01, Vol.92 (2), p.1916-1924
Main Authors: Cai, Wen-Rong, Zeng, Hai-Bo, Xue, Huai-Guo, Marks, Robert S, Cosnier, Serge, Zhang, Xue-Ji, Shan, Dan
Format: Article
Language:English
Subjects:
Chemical Sciences
Chemistry
Coordination
Coordination chemistry
Crystal growth
Electrochemiluminescence
Emitters
Hydrogen peroxide
Metal-organic frameworks
Morphology
Optoelectronics
Zinc
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Precise control over the composition, morphology, and size of porphyrin-based metal–organic frameworks is challenging, but the extension of these hybrid materials will enable the creation of novel electrochemiluminescence (ECL) emitters. The coordination of various entities is made from Zn2+ ions and meso-tetra­(4-carboxyphenyl)­porphine (TCPP), modulated by both solvent and bathophenanthrolinedisulfonic acid disodium salt (BPS) as capping agent, resulting in limited crystal growth of Zn-TCPP in DMF/H2O (v/v, 1:1) and the formation of nanoscale TCPP-Zn-BPS. The role of BPS is also evaluated using Zn-TCPP and BPS-Zn-TCPP as controls, prepared in the absence of BPS and different coordinating sequences of ligands, respectively. The newly obtained TCPP-Zn-BPS exhibits a variety of different morphologies, as well as spectral and optoelectronic properties. The ECL behavior of TCPP-Zn-BPS is investigated by using H2O2 as co-reactant. The amplification of ECL is further studied by ECL spectroscopies and cyclic voltammetry, with the corresponding mechanism proposed.
ISSN:0003-2700
1520-6882
DOI:10.1021/acs.analchem.9b04104