Abstract
An efficient and highly selective colorimetric and fluorescent receptor DTPDA has been synthesized for sensitive detection of Pb2+ and Fe3+ cations. The sensor DTPDA produces a facile, cost-effective and naked eye sensing platform to determine trace amounts of Pb2+ and Fe3+ metal ions by complexation with pendent S-termini of thiophenes, which commonly coordinates to central N-termini of pyridine.
--------------------------------------------------------------------------------