Journal article
A fluorescent turn-on probe for cyanide anion detection based on an AIE active cobalt(ii) complex
Dalton transactions : an international journal of inorganic chemistry, Vol.47(6), pp.2079-2085
02/06/2018
DOI: 10.1039/c7dt04242f
PMID: 29355267
Abstract
A new tetradentate polypyridine ligand that displays aggregation induced emission (AIE) characteristics has been synthesized. A coordination complex with CoCl
has been prepared and characterized by X-ray crystallography. The Co(ii) complex retains the AIE activity of the ligand in aqueous solution while also exhibiting a selective turn-on fluorescence response in the presence of cyanide anion. A complex : CN
binding stoichiometry of 1 : 2 was indicated via Job plot analysis and the limit of detection for CN
was determined to be 0.59 μM. The fluorescence response is attributed to coordination of CN
by the AIE active Co(ii) complex, resulting in decreased solubility in aqueous medium and concomitant generation of larger nanoaggregates as revealed by dynamic light scattering (DLS) measurements. The sensitivity and selectivity displayed by this sensor for CN
over other anions renders it a candidate probe for CN
detection in aqueous environments.
Details
- Title: Subtitle
- A fluorescent turn-on probe for cyanide anion detection based on an AIE active cobalt(ii) complex
- Creators
- Moustafa T GabrF Christopher Pigge - Department of Chemistry, University of Iowa, Iowa City, Iowa 52242, USA. chris-pigge@uiowa.edu
- Resource Type
- Journal article
- Publication Details
- Dalton transactions : an international journal of inorganic chemistry, Vol.47(6), pp.2079-2085
- DOI
- 10.1039/c7dt04242f
- PMID
- 29355267
- ISSN
- 1477-9226
- eISSN
- 1477-9234
- Language
- English
- Date published
- 02/06/2018
- Academic Unit
- Radiology; Chemistry
- Record Identifier
- 9984216726502771
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