Citation: Chuan Guo Sun, Qian Lin, Nan Yan Fu. A novel squaraine dye with squaramide as a scaffold and the colorimetric detection of amine[J]. Chinese Chemical Letters, ;2012, 23(2): 217-220. doi: 10.1016/j.cclet.2011.11.001 shu

A novel squaraine dye with squaramide as a scaffold and the colorimetric detection of amine

Key Laboratory of Analysis and Detection for Food Safety, Ministry of Education & Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350108, China

Received Date: 27 June 2011

Fund Project: The authors are grateful to the National Natural Science Foundation of China (No. 20702005) and the Fujian Provincial Natural Science Foundation of China (No. 2008J0148).

A novel unsymmetrical squaramide-linked squaraine dye (SQ) has been synthesized through squaramide 3 and semisquaraine 6. The molecular structure of SQ has been characterized by ¹H NMR, IR and MS. Due to the influence of the hydrogen bond and the solvent effect, SQ exhibits unique spectral properties compared with typical squaraine dyes. For its excellent ability of binding primary amine, SQ is a promising receptor of recognizing primary amine.
- Squaraine dye,
- Squaramide,
- Hydrogen bond,
- Receptor
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