Host-guest assembly of squaraine dye in cucurbit[8]uril: its implication in fluorescent probe for mercury ions.
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.
Xu
Yongqian
Y
Department of Chemistry & Maurice Morton Institute of Polymer Science, The University of Akron, Akron, OH 44325, USA.
Panzner
Matthew J
MJ
Li
Xiaopeng
X
Youngs
Wiley J
WJ
Pang
Yi
Y
D001665:Binding Sites; D001952:Bridged-Ring Compounds / Q000737:chemistry*; D003503:Cyclobutanes / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000737:chemistry*; D007093:Imidazoles / Q000737:chemistry*; D007477:Ions / Q000737:chemistry; D008628:Mercury / Q000032:analysis*; D008958:Models, Molecular; D010636:Phenols / Q000737:chemistry*; D013050:Spectrometry, Fluorescence / Q000379:methods; D047028:Macrocyclic Compounds; D000099246:Cucurbit(n)urils
D001952:Bridged-Ring Compounds; D003503:Cyclobutanes; D005456:Fluorescent Dyes; D007093:Imidazoles; D007477:Ions; D008628:Mercury; D010636:Phenols; C507198:cucurbit(8)uril; D047028:Macrocyclic Compounds; D000099246:Cucurbit(n)urils; C480596:squaraine