Affiliation:
1. State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
2. Department of Chemistry and Institute of Molecular Functional Materials
3. Department of Chemistry and Center for Molecular Materials (CM2)
Abstract
A new C
3v
-symmetrical tribenzotriquinacene (TBTQ) derivative bearing six 8-quinolinyloxymethyl units at the rim of the bowl-shaped molecular framework is synthesized in a single-step by six-fold etherification of the corresponding hexakis(chloromethyl)-TBTQ precursor with 8-hydroxyquinoline. The resulting compound acts as a fluorescence chemosensor, producing a ‘turn-off’ fluorescent quenching response in the presence of Ag+ ions, and is highly selective toward Ag+ over other cations, such as Al3+, Ca2+, Cd2+, Co2+, Cr3+, Cu2+, Fe3+, Ga3+, Hg2+, In3+, K+, Mg2+, Mn2+, Na+, Ni2+, Pb2+, Pd2+, and Zn2+. The fluorescence intensity change of the chemosensor solution can be clearly observed by the naked eye upon addition of silver salts.
Funder
National Natural Science Foundation of China
PCSIRT
FRFCU
MOE
UGC of HKSAR
Subject
Organic Chemistry,Catalysis