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Cited by 536

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Chemically Converted Graphene Induced Molecular Flattening of 5,10,15,20-Tetrakis(1-methyl-4-pyridinio)porphyrin and Its Application for Optical Detection of Cadmium(II) Ions

Xu, Yuxi, Zhao, Lu, Bai, Hua, Hong, Wenjing, Li, Chun, Shi, Gaoquan·2009·Journal of the American Chemical Society

Abstract

Complexation of cationic 5,10,15,20-tetrakis(1-methyl-4-pyridinio)porphyrin (TMPyP) and negatively charged chemically converted graphene (CCG) sheets was performed by simply mixing the diluted aqueous solutions of both components. During this process, a large bathochromic shift of porphyrin Soret band from 421 to 458 nm was observed, which is attributed to the flattening of TMPyP molecules induced by CCG through electrostatic and pi-pi stacking cooperative interactions. Furthermore, the coordination reaction between TMPyP and Cd(2+) ions was greatly accelerated from 20 h to 8 min under ambient conditions by introducing CCG sheets. On the basis of this phenomenon, we used the complex of TMPyP and CCG as an optical probe for rapid and selective detection of Cd(2+) ions in aqueous media.

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Metadata

Authors
Xu, Y., Zhao, L., Bai, H., Hong, W., Li, C., & Shi, G.
Venue
Journal of the American Chemical Society
Published
2009-08-27
Volume
131
Issue
37
Pages
13490-13497
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W1984453603
Cited by
536
References
3
FWCI
20.42
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Chemically Converted Graphene Induced Molecular Flattening of 5,10,15,20-Tetrakis(1-methyl-4-pyridinio)porphyrin and Its Application for Optical Detection of Cadmium(II) Ions. https://app.cochat.ai/papers/10.1021/ja905032g
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Xu, Y., Zhao, L., Bai, H., Hong, W., Li, C., & Shi, G. (2009). Chemically Converted Graphene Induced Molecular Flattening of 5,10,15,20-Tetrakis(1-methyl-4-pyridinio)porphyrin and Its Application for Optical Detection of Cadmium(II) Ions. Journal of the American Chemical Society. https://doi.org/10.1021/ja905032g

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