Highly Sensitive Ratiometric Chemosensor for Selective ′Naked‐Eye′ Nanomolar Detection of Co2+ in Semi‐Aqueous Media. Issue 11 (12th May 2014)

• Record Type: Journal Article
• Authors: Patil, Smita; Fegade, Umesh; Sahoo, Suban K.; Singh, Amanpreet; Marek, Jaromir; Singh, Narinder; Bendre, Ratnamala; Kuwar, Anil
• Is Part Of: Chemphyschem. Volume 15:Issue 11(2014)
• Page Start: 2230
• Page End: 2235
• Publication Date: 2014-05-12
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.05
• DOI: 10.1002/cphc.201402076
• Languages: English
• ISSNs: 1439-4235

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>An easy‐to‐prepare chemosensor, (E)‐1‐(phthalazine‐4‐yl)‐2‐(1‐(pyridine‐2‐yl)ethylidene) hydrazine (<bold>3</bold>), structurally characterized by single X‐ray crystallography, is developed for the selective and sensitive detection of Co²⁺ in aqueous media. Chemosensor <bold>3</bold> shows both absorption and fluorescence responses to Co²⁺ by forming a 1:1 complex (among the surveyed metal ions) with a detection limit down to 50 n<sc>M</sc>. It can also be used as a ′naked‐eye′ sensor due to the outstanding visible and emission color changes from yellow to red and blue to orange, respectively.</p> </abstract>