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Host-guest assembly of squaraine dye in cucurbit[8]uril: its implication in fluorescent probe for mercury ions.

Authors
  • Xu, Yongqian
  • Panzner, Matthew J
  • Li, Xiaopeng
  • Youngs, Wiley J
  • Pang, Yi
Type
Published Article
Journal
Chemical Communications
Publisher
The Royal Society of Chemistry
Publication Date
Jun 21, 2010
Volume
46
Issue
23
Pages
4073–4075
Identifiers
DOI: 10.1039/c002219p
PMID: 20407667
Source
Medline
License
Unknown

Abstract

The binding interactions between SQ2 squaraine dye and cucurbit[8]uril (CB8) effectively removes the aggregation of SQ2 in aqueous solution by forming a 1 : 1 inclusion complex. The resulting SQ2.CB8 complex exhibits highly selective fluorescence quenching by Hg(2+) ions, as a result of the synergetic binding between CB8, SQ2 and metal cation.

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