Abstract
By using tetracarboxylatoresorcin[4]arene 2,8,14,20-tetrapentyl-6,12,18,23-tetra- methoxy-4,10,16,22-tetra-carboxymethoxy-resorcin[4]arene (H4L), eight lanthanide-based coordination polymers (CPs), [M(HL)(DMF)(H2O)2]·3H2O (M = Tb 1, Eu 2, Gd 3, Yb 4 and Sm 5) and [M(HL)(DMF)(H2O)] (M = Ce 6, Pr 7 and La 8), have been constructed. Isostructural CPs 1–5 exhibit charming ribbons built with rare earth cations and cup-like HL3− anions. The ribbons are lengthened by hydrogen bonds to constitute supramolecular layers, respectively. CPs 6–8 are isostructural and show unique layer networks. The luminescent properties of 1 and 2 in solid states were studied. The detection of CPs 1 and 2 towards metal cations, polyoxometalates (POMs) and organic small molecules by luminescent quenching and enhancement process has been systematically investigated.
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