Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance upgrade on Thursday 4th of May 2017 from 8.00am to 9.00am (BST).

During this time our websites will be offline temporarily. If you have any questions please use the feedback button on this page. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 24, 2012
Previous Article Next Article

Porphyrin-based multi-signal chemosensors for Pb2+ and Cu2+

Author affiliations

Abstract

Two metal-free tetra(aryl)porphyrin derivatives modified by one and four N,N-bis(2-pyridylmethyl)amino group(s), namely porphyrin-1-DPA (1) and porphyrin-4-DPA (2) respectively, have been designed, synthesized, and characterized. Binding with Pb2+ induces a significant change in their solution color and in the ratio of two absorption/fluorescence signal peaks, rendering them the first example of porphyrin-based triple-signal optical sensors for Pb2+. Their dual-mode Cu2+-selective sensing properties via either the porphyrin fluorescence ON–OFF mechanism or metal displacement from the 1–Pb2+ complex that results in a triple-signal change clearly reveals their potential application as excellent and versatile sensors.

Graphical abstract: Porphyrin-based multi-signal chemosensors for Pb2+ and Cu2+

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 12 Feb 2012, accepted on 25 Apr 2012 and first published on 25 Apr 2012


Article type: Paper
DOI: 10.1039/C2OB25313E
Citation: Org. Biomol. Chem., 2012,10, 4782-4787
  •   Request permissions

    Porphyrin-based multi-signal chemosensors for Pb2+ and Cu2+

    Y. Chen and J. Jiang, Org. Biomol. Chem., 2012, 10, 4782
    DOI: 10.1039/C2OB25313E

Search articles by author