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Luminescence Lifetime-Based Sensor for Cyanide and Related Anions
Abstract
A new Ru(II) complex is described which serves as a luminescence lifetime-based sensor for fluoride and cyanide anions (KF = 640 000 mol-1, KCN = 430 000 mol-1). This chromophore displays observable changes in its UV-vis and steady-state luminescence spectra upon cyanide binding. Prior to cyanide addition, this complex exhibits a single-exponential lifetime (tau = 377 +/- 20 ns). With increasing cyanide concentrations, the intensity decays are composed of two exponentials: long tau (320-370 ns) and short tau (13-17 ns). The average lifetimes shorten as a function of cyanide concentration since the fractional intensity shifts from an initial dominant long lifetime component to the short lifetime component. This work represents the first example of a direct method for the luminescence lifetime-based sensing of anions.
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Citations
Cited by
Sensors for the optical detection ofcyanide ion
Xu, Z., Chen, X., Kim, H. N., & Yoon, J. (2010) · Chem. Soc. Rev. · doi:10.1039/b907368j · Cited by 1,121
Johnson, R. M., & Fraser, C. L. (2004) · Biomacromolecules · doi:10.1021/bm034421v · Cited by 46
Metadata
- Authors
- Anzenbacher, Tyson, D. S., Jursíková, K., & Castellano, F. N.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2002-05-03
- Volume
- 124
- Issue
- 22
- Pages
- 6232-6233
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W1964624770
- Cited by
- 460
- References
- 0
- FWCI
- 6.11
- Type
- journal article
- Language
- en
- Open access
- closed
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- Anzenbacher, Tyson, D. S., Jursíková, K., & Castellano, F. N. (2002). Luminescence Lifetime-Based Sensor for Cyanide and Related Anions. Journal of the American Chemical Society. https://doi.org/10.1021/ja0259180
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