Zero- to One-Dimensional Zn 24 Supraclusters: Synthesis, Structures and Detection Wavelength.

A zinc supracluster [Zn 24 (ATZ) 18 (AcO) 30 (H 2 O) 1.5 ]·(H 2 O) 3.5 ( Zn 24 ), and a 1D zinc supracluster chain {[Zn 24 (ATZ) 18 (AcO) 30 (C 2 H 5 OH) 2 (H 2 O) 3 ]·(H 2 O) 2.5 } n ( 1-D⊂Zn 24 ) with molecular diameters of 2 nm were synthesized under regulatory solvothermal conditions or the micro bottle method. In an N,N-dimethylformamide solution of Zn 24 , Fe 3+ , Ni 2+ , Cu 2+ , Cr 2+ and Co 2+ ions exhibited fluorescence-quenching effects, while the rare earth ions Ce 3+ , Dy 3+ , Er 3+ , Eu 3+ , Gd 3+ , Ho 3+ , La 3+ , Nd 3+ , Sm 3+ , and Tb 3+ showed no obvious fluorescence quenching. In ethanol solution, the Zn 24 supracluster can be used to selectively detect Ce 3+ ions with excellent efficiency (limit of detection (LOD) = 8.51 × 10 -7 mol/L). The Zn 24 supracluster can also detect wavelengths between 302 and 332 nm using the intensity of the emitted light.