A fluorescent ammonia sensor based on a porphyrin cobalt(II)–dansyl complex

✍ Scribed by Jiyeon Kim; Si-Hyung Lim; Yeoil Yoon; T. Daniel Thangadurai; Sungho Yoon

• Book ID: 104099059
• Publisher: Elsevier Science
• Year: 2011
• Tongue: French
• Weight: 651 KB
• Volume: 52
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/j.tetlet.2011.03.048

✦ Synopsis

Detecting and measuring the concentration of ammonia is of interest in many scientific and technological areas. A porphyrin based cobalt(II) complex with a dansyl fluorophore has been synthesized and investigated as a 'turn-on' fluorescent ammonia sensor. Over sixfold increase in fluorescence emission occurs upon the treatment of NH 3 to [Co(TPP)(Ds-pip)] sensor solution, resulting from NH 3 -induced displacement of the axially coordinated fluorophore.