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A New Coumarin-Based Colorimetric and Fluorometric Sensor for Cu<sup>2+</sup>
A New Coumarin-Based Colorimetric and Fluorometric Sensor for Cu2+
Bulletin of the Korean Chemical Society. 2014. Jul, 35(7): 2183-2185
Copyright © 2014, Korea Chemical Society
  • Received : March 03, 2014
  • Accepted : March 18, 2014
  • Published : July 20, 2014
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About the Authors
Kyoung-Lyong An
Department of Chemistry, Chungnam National University, Daejeon 305-764, Korea.
Koon Ha Park
Department of Chemistry, Chungnam National University, Daejeon 305-764, Korea.
Kun Jun
Interface Materials & Process Research Group, Korea Research Institute of Chemical Technology, Daejeon 305-600, Korea.

Abstract
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Experimental
Synthesis of Sensor A. To a solution of compound 2 (0.3 g, 1.3 mmol) in absolute ethanol (15 mL), was added 2- hydroxycinnamaldehyde (0.22 g, 1.4 mmol). After the mixture was stirred for 20 h at room temperature, a reddish precipitate was filtered, washed with ethanol (10 mL) and cold acetone (20 mL). It was dried under vacuum to afford a reddish crystalline solid (0.24 g, 50%). HRMS (EI): 362.1627 (calcd. for C 22 H 22 N 2 O 3 , 362.1630); 1 H-NMR (DMSO- d 6 , 500 MHz) δ 10.14 (s, 1H), 8.85 (d, 1H), 7.69 (s, 1H), 7.59 (d, 1H), 7.46 (d, 1H), 7.43 (s, 1H), 7.18 (t, 1H), 7.10 (m, 1H), 6.89 (d, 1H), 6.83 (t, 1H), 6.72 (d, 1H), 6.55 (s, 1H), 3.43 (m, 4H), 1.12 (t, 6H); 13 C NMR (DMSO- d 6 , 125 MHz) δ 162.7, 158.0, 155.8, 154.2, 149.9, 139.1, 132.9, 130.4, 129.1, 128.5, 127.8, 122.3, 119.3, 116.0, 109.3, 108.3, 96.3, 43.9, 12.2.
Acknowledgements
This work was supported by Institutional Research Program of Korea Research Institute of Chemical Technology (KRICT) and the R&D Program of Small & Medium Business Administration (SMBA).
References
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