A selective colorimetric sensor for Cu2 + in aqueous solution

Yen Wen Liu, Jiun Ly Chir, Shan Teng Wang, An Tai Wu

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


We synthesized a novel Schiff-based receptor 1, and investigated its binding properties toward various metal ions. Receptor 1 showed a dramatic color change from colorless to red which could easily be detected by the naked-eye upon binding with Cu2 +. The association constant for 1 · Cu2 + in DMSO/H2O (v/v, 1:9) was calculated to be 1.98 × 108 M- 1. With the addition of Na2EDTA to a mixture of receptor 1 and Cu2 +, the solution changed back to its original colorless appearance instantly.

Original languageEnglish
Pages (from-to)112-115
Number of pages4
JournalInorganic Chemistry Communications
Publication statusPublished - 2014 Jul

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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